Merge branch 'master' into recent-px4

Co-authored-by: Oleg Kalachev <okalachev@gmail.com>

.github/workflows/build-image.yaml

@@ -0,0 +1,29 @@
+name: RPi image
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ master ]
+  release:
+    types: [ created ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build image
+        run: |
+          docker run --privileged --rm -v /dev:/dev -v $(pwd):/builder/repo -e TRAVIS_TAG="${{ github.event.release.tag_name }}" sfalexrog/img-tool:qemu-update
+      - name: Compress image
+        run: |
+          cd images && sudo chmod -R 777 . && zip -9 $(echo clover_*).zip clover_* && ls -l . && unzip -l clover_*.zip
+      - name: Upload image
+        uses: softprops/action-gh-release@v1
+        if: ${{ github.event_name == 'release' }}
+        with:
+          files: images/clover_*.zip
+          prerelease: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/build.yml

@@ -0,0 +1,23 @@
+name: Build
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  melodic:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Native Melodic build
+        run: |
+          docker run --rm -v $(pwd):/root/catkin_ws/src/clover ros:melodic-ros-base /root/catkin_ws/src/clover/builder/standalone-install.sh
+  noetic:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Native Noetic build
+        run: |
+          docker run --rm -v $(pwd):/root/catkin_ws/src/clover ros:noetic-ros-base /root/catkin_ws/src/clover/builder/standalone-install.sh

.github/workflows/docs.yml

@@ -0,0 +1,53 @@
+name: Documentation
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  docs:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with: { node-version: '10' }
+      - name: Setup tools
+        run: |
+          sudo sh -c "echo ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true | debconf-set-selections"
+          sudo apt-get update && sudo apt-get install -y calibre msttcorefonts
+          builder/assets/install_gitbook.sh
+          npm install markdownlint-cli@0.28.1 -g # FIXME: https://github.com/DavidAnson/markdownlint/issues/435
+          npm install svgexport -g
+          gitbook -V
+          markdownlint -V
+      - name: Run markdownlint
+        run: markdownlint docs
+      - name: Check Assets
+        run: |
+          ./check_assets_size.py
+          ./check_unused_assets.py
+      - name: Build GitBook
+        run: |
+         gitbook install
+         gitbook build
+      - name: Generate PDF
+        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+        run: |
+          for i in 1 2 3 4; do gitbook pdf ./ _book/clover.pdf && break || sleep 1; done
+          sudo apt-get -q install ghostscript
+          gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/default -dNOPAUSE -dQUIET -dBATCH -dDetectDuplicateImages -dCompressFonts=true -r150 -sOutputFile=_book/clover_ru_compressed.pdf _book/clover_ru.pdf
+          gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/default -dNOPAUSE -dQUIET -dBATCH -dDetectDuplicateImages -dCompressFonts=true -r150 -sOutputFile=_book/clover_en_compressed.pdf _book/clover_en.pdf
+          rm _book/clover_ru.pdf && mv _book/clover_ru_compressed.pdf _book/clover_ru.pdf
+          rm _book/clover_en.pdf && mv _book/clover_en_compressed.pdf _book/clover_en.pdf
+          ls -lah _book/clover*.pdf
+      - name: Deploy
+        uses: JamesIves/github-pages-deploy-action@4.1.3
+        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/master' }}
+        with:
+          branch: gh-pages
+          folder: _book
+          clean: true
+          single-commit: true # to avoid multiple copies of large pdf files

.github/workflows/editorconfig.yaml

@@ -0,0 +1,18 @@
+name: Editorconfig
+
+on:
+  push:
+    branches: [ '*' ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  editorconfig:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: .editorconfig Linter
+        run: |
+          wget --no-verbose https://github.com/okalachev/editorconfig-checker/releases/download/1.2.1-disable-spaces-amount/ec-linux-amd64
+          chmod +x ec-linux-amd64
+          ./ec-linux-amd64 -spaces-after-tabs -e "roslib.js|ros3d.js|eventemitter2.js|json-to-pretty-yaml.js|draw.cpp|BinUtils.swift|\.idea|apps/android/app|blockly/|clover_blocks/programs/|highlight/|python.js|Assets.xcassets|test_parser_pass.txt|test_node_failure.txt|aruco_pose/vendor|\.stl|\.dxf|\.dae|\.material"

.gitignore

@@ -6,3 +6,4 @@ _book/
 package-lock.json
 clover_blocks/programs/*.*
 !clover_blocks/programs/examples/*
+/.vscode/

.markdownlint.json

@@ -110,7 +110,8 @@
             "Li-ion",
             "Nvidia",
             "VirtualBox",
-            "VMware"
+            "VMware",
+            "DuoCam"
         ],
         "code_blocks": false
     },

.travis.yml

@@ -1,132 +0,0 @@
-os: linux
-dist: xenial
-language: generic
-services:
-  - docker
-env:
-  global:
-    - DOCKER="sfalexrog/img-tool:qemu-update"
-    - TARGET_REPO="https://github.com/${TRAVIS_REPO_SLUG}.git"
-    - IMAGE_VERSION=${TRAVIS_TAG:-${TRAVIS_COMMIT:0:7}}
-    - IMAGE_NAME="$(basename -s '.git' ${TARGET_REPO})_${IMAGE_VERSION}.img"
-git:
-  depth: 1
-jobs:
-  fast_finish: true
-  include:
-    - stage: Build
-      name: "Raspberry Pi Image Build"
-      cache:
-        directories:
-        - imgcache
-      before_script:
-        - docker pull ${DOCKER}
-# Check if there are any cached images, copy them to our "images" directory
-        - if [ -n "$(ls -A imgcache/*.zip)" ]; then mkdir -p images && cp imgcache/*.zip images; fi
-      script:
-        - if [[ -z ${TRAVIS_TAG} && "${TRAVIS_PULL_REQUEST}" != "false" ]]; then
-            echo "Commit range is ${TRAVIS_COMMIT_RANGE}" &&
-            if [ $(git diff --name-only ${TRAVIS_COMMIT_RANGE} | grep -v ^"docs/" | wc -l) -eq 0 ]; then
-              echo " === Docs-only change; skipping build ===" &&
-              export SKIP_BUILD=true;
-            fi;
-          fi
-        - if [ -z ${SKIP_BUILD} ]; then
-            docker run --privileged --rm -v /dev:/dev -v $(pwd):/builder/repo -e TRAVIS_TAG="${TRAVIS_TAG}" ${DOCKER};
-          fi
-      before_cache:
-        - cp images/*.zip imgcache
-      after_success:
-        - sudo chmod -R 777 *
-        - cd images && zip -9 ${IMAGE_NAME}.zip ${IMAGE_NAME} && stat --printf="Compressed image size:%s\n" ${IMAGE_NAME}.zip
-      before_deploy:
-        # Set up git user name and tag this commit
-        - git config --local user.name "goldarte"
-        - git config --local user.email "goldartt@gmail.com"
-      deploy:
-        provider: releases
-        token: ${GITHUB_OAUTH_TOKEN}
-        file: ${IMAGE_NAME}.zip
-        skip_cleanup: true
-        on:
-          tags: true
-        draft: true
-        name: ${TRAVIS_TAG}
-    - stage: Build
-      name: "Native Kinetic build"
-      env:
-        - NATIVE_DOCKER=ros:kinetic-ros-base
-      before_script:
-        - docker pull ${NATIVE_DOCKER}
-      script:
-        - docker run --rm -v $(pwd):/root/catkin_ws/src/clover ${NATIVE_DOCKER} /root/catkin_ws/src/clover/builder/standalone-install.sh
-    - stage: Build
-      name: "Native Melodic build"
-      env:
-        - NATIVE_DOCKER=ros:melodic-ros-base
-      before_script:
-        - docker pull ${NATIVE_DOCKER}
-      script:
-        - docker run --rm -v $(pwd):/root/catkin_ws/src/clover ${NATIVE_DOCKER} /root/catkin_ws/src/clover/builder/standalone-install.sh
-    - stage: Build
-      name: "Native Noetic build"
-      env:
-        - NATIVE_DOCKER=ros:noetic-ros-base
-      before_script:
-        - docker pull ${NATIVE_DOCKER}
-      script:
-        - docker run --rm -v $(pwd):/root/catkin_ws/src/clover ${NATIVE_DOCKER} /root/catkin_ws/src/clover/builder/standalone-install.sh
-    - stage: Build
-      name: "Documentation"
-      language: node_js
-      node_js:
-        - "10"
-      before_script:
-        - sudo sh -c "echo ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true | debconf-set-selections"
-        - sudo apt update && sudo apt install -y calibre msttcorefonts
-        - npm install gitbook-cli -g
-        - gitbook fetch 3.2.3 && npm i npm@3.10.10 --prefix=~/.gitbook/versions/3.2.3/ # fixing https://travis-ci.org/github/CopterExpress/clover/jobs/766541125#L932
-        - npm install markdownlint-cli -g
-        - npm install svgexport -g
-        - gitbook -V
-        - markdownlint -V
-      script:
-        - markdownlint docs
-        - ./check_assets_size.py
-        - ./check_unused_assets.py
-        - gitbook install
-        - gitbook build
-        - for i in 1 2 3 4; do gitbook pdf ./ _book/clover.pdf && break || sleep 1; done
-        - sudo apt-get install ghostscript
-        - gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/default -dNOPAUSE -dQUIET -dBATCH -dDetectDuplicateImages -dCompressFonts=true -r150 -sOutputFile=_book/clover_ru_compressed.pdf _book/clover_ru.pdf
-        - gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/default -dNOPAUSE -dQUIET -dBATCH -dDetectDuplicateImages -dCompressFonts=true -r150 -sOutputFile=_book/clover_en_compressed.pdf _book/clover_en.pdf
-        - rm _book/clover_ru.pdf && mv _book/clover_ru_compressed.pdf _book/clover_ru.pdf
-        - rm _book/clover_en.pdf && mv _book/clover_en_compressed.pdf _book/clover_en.pdf
-        - ls -lah _book/clover*.pdf
-      deploy:
-        provider: pages
-        local_dir: _book
-        skip_cleanup: true
-        token: ${GITHUB_OAUTH_TOKEN}
-        keep_history: true
-        target_branch: master
-        repo: CopterExpress/clover.coex.tech
-        fqdn: clover.coex.tech
-        verbose: true
-        on:
-          branch: master
-    - stage: Build
-      name: Editorconfig-lint
-      language: generic
-      before_script:
-        - wget https://github.com/okalachev/editorconfig-checker/releases/download/1.2.1-disable-spaces-amount/ec-linux-amd64
-        - chmod +x ec-linux-amd64
-      script:
-        - ./ec-linux-amd64 -spaces-after-tabs -e "roslib.js|ros3d.js|eventemitter2.js|draw.cpp|BinUtils.swift|\.idea|apps/android/app|blockly/|clover_blocks/programs/|highlight/|python.js|Assets.xcassets|test_parser_pass.txt|test_node_failure.txt|aruco_pose/vendor|\.stl|\.dxf|\.dae"
-stages:
-  - Build
-# More info there
-# https://github.com/travis-ci/travis-ci/issues/6893
-# https://docs.travis-ci.com/user/customizing-the-build/
-# https://docs.travis-ci.com/user/deployment/releases
-# https://docs.travis-ci.com/user/environment-variables/

README.md

@@ -1,6 +1,6 @@
 # clover🍀: create autonomous drones easily
 
-<img src="docs/assets/clover42-main.png" align="right" width="400px" alt="COEX Clover Drone">
+<img src="docs/assets/clover42-main-margin.png" align="right" width="400px" alt="COEX Clover Drone">
 
 Clover is an open source [ROS](https://www.ros.org)-based framework, providing user-friendly tools to control [PX4](https://px4.io)-powered drones. Clover is available as a ROS package, but is shipped mainly as a preconfigured image for Raspberry Pi. Once you've installed Raspberry Pi on your drone and flashed the image to its microSD card, taking the drone up in the air is a matter of minutes.
 
@@ -20,7 +20,7 @@ Clover drone is used on a wide range of educational events, including [Copter Ha
 
 Preconfigured image for Raspberry Pi with installed and configured software, ready to fly, is available [in the Releases section](https://github.com/CopterExpress/clover/releases).
 
-[![Build Status](https://travis-ci.org/CopterExpress/clover.svg?branch=master)](https://travis-ci.org/CopterExpress/clover)
+![GitHub Workflow Status](https://img.shields.io/github/workflow/status/CopterExpress/clover/CI)
 ![GitHub all releases](https://img.shields.io/github/downloads/CopterExpress/clover/total)
 
 Image features:
@@ -38,6 +38,10 @@ API description for autonomous flights is available [on GitBook](https://clover.
 
 For manual package installation and running see [`clover` package documentation](clover/README.md).
 
+## Support
+
+[![Telegram Support Chat](https://img.shields.io/endpoint?label=Support%20Chat&url=https%3A%2F%2Ftelegram-badge-4mbpu8e0fit4.runkit.sh%2F%3Furl%3Dhttps%3A%2F%2Ft.me%2FCOEXHelpDesk)](https://t.me/COEXHelpdesk)
+
 ## License
 
 While the Clover platform source code is available under the MIT License, note, that the [documentation](docs/) is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

apps/ios/cleverrc/README.md

@@ -1,5 +1,4 @@
-iOS-приложение для управления Клевером
---------------------------------------
+# iOS-приложение для управления Клевером
 
 Для установки зависимостей необходим [CocoaPods](https://cocoapods.org):
 

aruco_pose/CMakeLists.txt

@@ -119,7 +119,7 @@ generate_messages(
 
 ## Generate dynamic reconfigure parameters in the 'cfg' folder
 generate_dynamic_reconfigure_options(
-  cfg/DetectorParams.cfg
+  cfg/Detector.cfg
 )
 
 ###################################
@@ -159,9 +159,6 @@ add_library(aruco_pose
 
 add_dependencies(${PROJECT_NAME} ${PROJECT_NAME}_generate_messages_cpp ${PROJECT_NAME}_gencfg)
 
-# FIXME: hack to fix https://travis-ci.org/github/CopterExpress/clover/jobs/766318908#L6532
-string(REPLACE "-lpthreads;" "" catkin_LIBRARIES "${catkin_LIBRARIES}")
-
 ## Declare a C++ executable
 ## With catkin_make all packages are built within a single CMake context
 ## The recommended prefix ensures that target names across packages don't collide
@@ -205,11 +202,11 @@ set_property(TARGET aruco_pose
 # )
 
 ## Mark executables and/or libraries for installation
-# install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_node
-#   ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
-#   LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
-#   RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
-# )
+install(TARGETS ${PROJECT_NAME}
+  ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
+  LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
+  RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
+)
 
 ## Mark cpp header files for installation
 # install(DIRECTORY include/${PROJECT_NAME}/
@@ -229,6 +226,10 @@ catkin_install_python(PROGRAMS src/genmap.py
   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
 )
 
+install(DIRECTORY launch DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
+
+install(DIRECTORY map DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
+
 #############
 ## Testing ##
 #############

aruco_pose/README.md

@@ -70,7 +70,7 @@ It's recommended to run it within the same nodelet manager with the camera nodel
 
 * `~map` – path to text file with markers list
 * `~frame_id` – published frame id (default: `aruco_map`)
-* `~known_tilt` – debug image width
+* `~known_tilt` – known tilt (pitch and roll) of markers map as a frame
 * `~image_width` – debug image width (default: 2000)
 * `~image_height` – debug image height (default: 2000)
 * `~image_margin` – debug image margin (default: 200)

book.json

@@ -10,7 +10,7 @@
         "yametrika",
         "anchors",
         "collapsible-menu",
-        "validate-links",
+        "validate-links@https://github.com/okalachev/gitbook-plugin-validate-links.git",
         "bulk-redirect@https://github.com/okalachev/gitbook-plugin-bulk-redirect.git",
         "sitemap@https://github.com/okalachev/plugin-sitemap.git",
         "toolbar@https://github.com/hamishwillee/gitbook-plugin-toolbar.git",

builder/assets/clover.service

@@ -8,5 +8,9 @@ ExecStart=/bin/bash -c ". /home/pi/catkin_ws/devel/setup.sh; \
                       ROS_HOSTNAME=`hostname`.local exec stdbuf -o L roslaunch clover clover.launch --wait --screen --skip-log-check \
                       2> >(tee /tmp/clover.err)"
 
+ExecStartPre=+rm /var/log/clover.log
+StandardOutput=file:/var/log/clover.log
+StandardError=file:/var/log/clover.log
+
 [Install]
 WantedBy=multi-user.target

builder/assets/install_gitbook.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+# GitBook CLI is deprecated, its installation is broken.
+# This script fixes it until we stop using GitBook.
+
+export NPM_CONFIG_UNSAFE_PERM=1
+
+npm install gitbook-cli -g
+gitbook fetch 3.2.3 && npm i npm@3.10.10 --prefix=~/.gitbook/versions/3.2.3/ # fixing https://travis-ci.org/github/CopterExpress/clover/jobs/766541125#L932

builder/image-build.sh

@@ -16,7 +16,7 @@
 set -e # Exit immidiately on non-zero result
 
 # https://www.raspberrypi.org/software/operating-systems/#raspberry-pi-os-32-bit
-SOURCE_IMAGE="https://downloads.raspberrypi.org/raspios_lite_armhf/images/raspios_lite_armhf-2021-03-25/2021-03-04-raspios-buster-armhf-lite.zip"
+SOURCE_IMAGE="https://downloads.raspberrypi.org/raspios_lite_armhf/images/raspios_lite_armhf-2021-05-28/2021-05-07-raspios-buster-armhf-lite.zip"
 
 export DEBIAN_FRONTEND=${DEBIAN_FRONTEND:='noninteractive'}
 export LANG=${LANG:='C.UTF-8'}
@@ -105,8 +105,6 @@ ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/butterf
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/monkey.service' '/lib/systemd/system/'
 # software install
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} exec ${SCRIPTS_DIR}'/image-software.sh'
-# examples
-${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/examples' '/home/pi/'  # TODO: symlink?
 # network setup
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} exec ${SCRIPTS_DIR}'/image-network.sh'
 # avahi setup
@@ -115,15 +113,11 @@ ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/avahi-s
 # If RPi then use a one thread to build a ROS package on RPi, else use all
 [[ $(arch) == 'armv7l' ]] && NUMBER_THREADS=1 || NUMBER_THREADS=$(nproc --all)
 # Clover
-${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/clover.service' '/lib/systemd/system/'
-${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/roscore.service' '/lib/systemd/system/'
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/noetic-rosdep-clover.yaml' '/etc/ros/rosdep/'
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/ros_python_paths' '/etc/sudoers.d/'
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/pigpiod.service' '/lib/systemd/system/'
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/launch.nanorc' '/usr/share/nano/'
 # ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/kinetic-ros-clover.rosinstall' '/home/pi/ros_catkin_ws/'
-# Add PX4 udev rules
-${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${REPO_DIR}'/clover/config/99-px4fmu.rules' '/lib/udev/rules.d/'
 # Add rename script
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} exec ${SCRIPTS_DIR}'/image-ros.sh' ${REPO_URL} ${IMAGE_VERSION} false false ${NUMBER_THREADS}
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} exec ${SCRIPTS_DIR}'/image-validate.sh'

builder/image-ros.sh

@@ -13,7 +13,7 @@
 # copies or substantial portions of the Software.
 #
 
-set -e # Exit immidiately on non-zero result
+set -ex # exit on error, echo commands
 
 REPO=$1
 REF=$2
@@ -112,7 +112,8 @@ my_travis_retry pip3 install wheel
 my_travis_retry pip3 install -r /home/pi/catkin_ws/src/clover/clover/requirements.txt
 source /opt/ros/${ROS_DISTRO}/setup.bash
 # Don't build simulation plugins for actual drone
-catkin_make -j2 -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCATKIN_BLACKLIST_PACKAGES=clover_gazebo_plugins
+catkin_make -j2 -DCMAKE_BUILD_TYPE=RelWithDebInfo
+source devel/setup.bash
 
 echo_stamp "Install clever package (for backwards compatibility)"
 cd /home/pi/catkin_ws/src/clover/builder/assets/clever
@@ -121,9 +122,8 @@ rm -rf build  # remove build artifacts
 
 echo_stamp "Build Clover documentation"
 cd /home/pi/catkin_ws/src/clover
-NPM_CONFIG_UNSAFE_PERM=true npm install gitbook-cli -g
-NPM_CONFIG_UNSAFE_PERM=true gitbook fetch 3.2.3 && npm i npm@3.10.10 --prefix=~/.gitbook/versions/3.2.3/ # fixing https://travis-ci.org/github/CopterExpress/clover/jobs/766541125#L932
-NPM_CONFIG_UNSAFE_PERM=true gitbook install
+builder/assets/install_gitbook.sh
+gitbook install
 gitbook build
 touch node_modules/CATKIN_IGNORE docs/CATKIN_IGNORE _book/CATKIN_IGNORE clover/www/CATKIN_IGNORE apps/CATKIN_IGNORE # ignore documentation files by catkin
 
@@ -135,7 +135,9 @@ my_travis_retry apt-get install -y --no-install-recommends \
     ros-${ROS_DISTRO}-usb-cam \
     ros-${ROS_DISTRO}-vl53l1x \
     ros-${ROS_DISTRO}-ws281x \
-    ros-${ROS_DISTRO}-rosshow
+    ros-${ROS_DISTRO}-rosshow \
+    ros-${ROS_DISTRO}-cmake-modules \
+    ros-${ROS_DISTRO}-image-view
 
 # TODO move GeographicLib datasets to Mavros debian package
 echo_stamp "Install GeographicLib datasets (needed for mavros)" \
@@ -149,9 +151,20 @@ catkin_make run_tests #&& catkin_test_results
 echo_stamp "Change permissions for catkin_ws"
 chown -Rf pi:pi /home/pi/catkin_ws
 
-echo_stamp "Change permissions for examples"
+echo_stamp "Make \$HOME/examples symlink"
+ln -s "$(catkin_find clover examples --first-only)" /home/pi
 chown -Rf pi:pi /home/pi/examples
 
+echo_stamp "Make systemd services symlinks"
+ln -s /home/pi/catkin_ws/src/clover/builder/assets/clover.service /lib/systemd/system/
+ln -s /home/pi/catkin_ws/src/clover/builder/assets/roscore.service /lib/systemd/system/
+# validate
+[ -f /lib/systemd/system/clover.service ]
+[ -f /lib/systemd/system/roscore.service ]
+
+echo_stamp "Make udev rules symlink"
+ln -s "$(catkin_find clover udev --first-only)"/* /lib/udev/rules.d/
+
 echo_stamp "Setup ROS environment"
 cat << EOF >> /home/pi/.bashrc
 LANG='C.UTF-8'

builder/image-software.sh

@@ -137,6 +137,7 @@ pip3 --version
 echo_stamp "Install and enable Butterfly (web terminal)"
 echo_stamp "Workaround for tornado >= 6.0 breaking butterfly"
 export CRYPTOGRAPHY_DONT_BUILD_RUST=1
+my_travis_retry pip3 install cryptography==3.4.6 # https://stackoverflow.com/a/68472128/6850197
 my_travis_retry pip3 install tornado==5.1.1
 my_travis_retry pip3 install butterfly
 my_travis_retry pip3 install butterfly[systemd]
@@ -148,11 +149,12 @@ my_travis_retry pip3 install --prefer-binary rpi_ws281x
 echo_stamp "Setup Monkey"
 mv /etc/monkey/sites/default /etc/monkey/sites/default.orig
 mv /root/monkey /etc/monkey/sites/default
+sed -i 's/SymLink Off/SymLink On/' /etc/monkey/monkey.conf
 systemctl enable monkey.service
 
 echo_stamp "Install Node.js"
 cd /home/pi
-wget https://nodejs.org/dist/v10.15.0/node-v10.15.0-linux-armv6l.tar.gz
+wget --no-verbose https://nodejs.org/dist/v10.15.0/node-v10.15.0-linux-armv6l.tar.gz
 tar -xzf node-v10.15.0-linux-armv6l.tar.gz
 cp -R node-v10.15.0-linux-armv6l/* /usr/local/
 rm -rf node-v10.15.0-linux-armv6l/

builder/image-validate.sh

@@ -20,12 +20,20 @@ export ROS_DISTRO='noetic'
 export ROS_IP='127.0.0.1'
 source /opt/ros/${ROS_DISTRO}/setup.bash
 source /home/pi/catkin_ws/devel/setup.bash
+systemctl start roscore
 
 cd /home/pi/catkin_ws/src/clover/builder/test/
 ./tests.sh
 ./tests.py
 ./tests_py3.py
+[[ $(./test_qr.py) == "Found QRCODE with data Проверка Unicode with center at x=66.0, y=66.0" ]] 
 [[ $(./tests_clever.py) == "Warning: clever package is renamed to clover" ]]  # test backwards compatibility
 
+systemctl stop roscore
+
+# check documented packages available
+apt-cache show gst-rtsp-launch
+apt-cache show openvpn
+
 echo "Move /etc/ld.so.preload back to its original position"
 mv /etc/ld.so.preload.disabled-for-build /etc/ld.so.preload

builder/standalone-install.sh

@@ -3,10 +3,17 @@
 # Perform a "standalone install" in a Docker container
 set -e
 # Step 1: Install pip
-apt update
-apt install -y curl
-curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
-python3 ./get-pip.py
+apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654 # https://github.com/osrf/docker_images/issues/535
+apt-get update
+apt-get install -y curl
+if [ "x${ROS_PYTHON_VERSION}" = "x3" ]; then
+  PYTHON=python3
+  curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
+else
+  PYTHON=python
+  curl https://bootstrap.pypa.io/pip/2.7/get-pip.py -o get-pip.py
+fi
+${PYTHON} ./get-pip.py
 
 # Step 1.5: Add deb.coex.tech to apt
 curl http://deb.coex.tech/aptly_repo_signing.key 2> /dev/null | apt-key add -
@@ -34,7 +41,7 @@ ws281x:
   ubuntu:
     ${CODENAME}: [ros-${ROS_DISTRO}-ws281x]
 EOF
-apt update
+apt-get update
 rosdep update
 
 # Step 2: Run rosdep to install all dependencies
@@ -50,7 +57,10 @@ cd /root/catkin_ws
 catkin_make
 
 # Step 4: Run tests
-python3 -m pip install --upgrade pytest # TODO: https://github.com/CopterExpress/clover/commit/5b970d51970cfa6f46e5c0b34acb7889d36b89c8
+${PYTHON} -m pip install --upgrade pytest
 cd /root/catkin_ws
 source devel/setup.bash
 catkin_make run_tests && catkin_test_results
+
+# Step 5: Install packages
+catkin_make install

builder/test/test_qr.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+# Test QG recognition example
+# Should be synced with the documentation: /docs/en/camera.md, /docs/ru/camera.md
+# TODO: use real ROS topics
+
+import rospy
+from pyzbar import pyzbar
+from cv_bridge import CvBridge
+from sensor_msgs.msg import Image
+
+bridge = CvBridge()
+
+# rospy.init_node('barcode_test')
+
+# Image subscriber callback function
+def image_callback(data):
+    cv_image = bridge.imgmsg_to_cv2(data, 'bgr8')  # OpenCV image
+    barcodes = pyzbar.decode(cv_image)
+    for barcode in barcodes:
+        b_data = barcode.data.decode("utf-8")
+        b_type = barcode.type
+        (x, y, w, h) = barcode.rect
+        xc = x + w/2
+        yc = y + h/2
+        print("Found {} with data {} with center at x={}, y={}".format(b_type, b_data, xc, yc))
+    # rospy.signal_shutdown('done')
+
+# image_sub = rospy.Subscriber('main_camera/image_raw', Image, image_callback, queue_size=1)
+
+# ==============================================================================
+# Publish test image
+# rospy.sleep(2)
+
+import cv2
+img = cv2.imread('qr.png')
+image_callback(bridge.cv2_to_imgmsg(img, 'bgr8'))
+
+# image_pub = rospy.Publisher('/main_camera/image_raw', Image, queue_size=1, latch=True)
+# image_pub.publish(bridge.cv2_to_imgmsg(img, 'bgr8'))
+
+# rospy.spin()

builder/test/tests.py

@@ -4,18 +4,26 @@
 
 import rospy
 from geometry_msgs.msg import PoseStamped
+from sensor_msgs.msg import Range, BatteryState
 
 import cv2
 import cv2.aruco
+from sensor_msgs.msg import Image
+from cv_bridge import CvBridge
 
 import numpy
 import mavros
-from mavros_msgs.msg import State, StatusText, ExtendedState
+from mavros_msgs.msg import State, StatusText, ExtendedState, RCIn, Mavlink
 from mavros_msgs.srv import CommandBool, CommandLong, SetMode
 
 from std_srvs.srv import Trigger
 from clover.srv import GetTelemetry, Navigate, NavigateGlobal, SetPosition, SetVelocity, \
     SetAttitude, SetRates, SetLEDEffect
+from led_msgs.srv import SetLEDs
+from led_msgs.msg import LEDStateArray, LEDState
+from aruco_pose.msg import Marker, MarkerArray, Point2D
+
+import dynamic_reconfigure.client
 
 import tf2_ros
 import tf2_geometry_msgs

builder/test/tests.sh

@@ -34,6 +34,7 @@ i2cdetect -V
 butterfly -h
 # espeak --version
 mjpg_streamer --version
+systemctl --version
 
 # ros stuff
 
@@ -54,6 +55,8 @@ rosversion usb_cam
 rosversion cv_camera
 rosversion web_video_server
 rosversion rosshow
+rosversion nodelet
+rosversion image_view
 
 # validate examples are present
 [[ $(ls /home/pi/examples/*) ]]

check_unused_assets.py

@@ -5,7 +5,7 @@ import sys
 import subprocess
 
 EXCLUDE = ('clever4-front-white.png', 'clever4-front-white-large.png', '.DS_Store',
-    'clever4-front-black-large.png','clover42-black.png')
+    'clever4-front-black-large.png','clover42-black.png', 'clover42-main-margin.png')
 
 code = 0
 

clover/CMakeLists.txt

@@ -185,9 +185,6 @@ add_executable(clover_led src/led.cpp)
 
 add_executable(shell src/shell.cpp)
 
-# FIXME: hack to fix https://travis-ci.org/github/CopterExpress/clover/jobs/766318908#L6532
-string(REPLACE "-lpthreads;" "" catkin_LIBRARIES "${catkin_LIBRARIES}")
-
 target_link_libraries(simple_offboard
   ${catkin_LIBRARIES}
   ${GeographicLib_LIBRARIES}
@@ -244,12 +241,12 @@ target_link_libraries(${PROJECT_NAME}
 #   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
 # )
 
-## Mark executables and/or libraries for installation
-# install(TARGETS ${PROJECT_NAME} ${PROJECT_NAME}_node
-#   ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
-#   LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
-#   RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
-# )
+# Mark executables and/or libraries for installation
+install(TARGETS simple_offboard clover_rc camera_markers vpe_publisher clover_led shell clover
+  ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
+  LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
+  RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
+)
 
 ## Mark cpp header files for installation
 # install(DIRECTORY include/${PROJECT_NAME}/
@@ -269,13 +266,21 @@ catkin_install_python(PROGRAMS src/selfcheck.py
   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
 )
 
+install(DIRECTORY launch DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
+
+install(DIRECTORY examples DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
+
+install(DIRECTORY www DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
+
+# TODO: install www
+
 # Only install udev rules when building a Debian package
 # FIXME: Other operating systems may have other prefixes
 string(FIND ${CMAKE_INSTALL_PREFIX} "/opt/ros" _PREFIX_INDEX)
 if (${_PREFIX_INDEX} EQUAL 0)
   message(STATUS "Building as a Debian package - adding udev rules as installable files")
   install(FILES
-    config/99-px4fmu.rules
+    udev/99-px4fmu.rules
     DESTINATION /lib/udev/rules.d
   )
 else()

clover/README.md

@@ -36,7 +36,7 @@ curl https://raw.githubusercontent.com/mavlink/mavros/master/mavros/scripts/inst
 You may optionally install udev rules to provide `/dev/px4fmu` symlink to your PX4-based flight controller connected over USB. Copy `99-px4fmu.rules` to your `/lib/udev/rules.d` folder:
 
 ```bash
-cd ~/catkin_ws/src/clover/clover/config
+cd ~/catkin_ws/src/clover/clover/udev
 sudo cp 99-px4fmu.rules /lib/udev/rules.d
 ```
 

clover/examples/flight.py

@@ -15,17 +15,17 @@ set_attitude = rospy.ServiceProxy('set_attitude', srv.SetAttitude)
 set_rates = rospy.ServiceProxy('set_rates', srv.SetRates)
 land = rospy.ServiceProxy('land', Trigger)
 
-# Take off and hover 1 m above the ground
+print('Take off and hover 1 m above the ground')
 navigate(x=0, y=0, z=1, frame_id='body', auto_arm=True)
 
-# Wait for 3 seconds
-rospy.sleep(3)
+# Wait for 5 seconds
+rospy.sleep(5)
 
-# Fly forward 1 m
+print('Fly forward 1 m')
 navigate(x=1, y=0, z=0, frame_id='body')
 
-# Wait for 3 seconds
-rospy.sleep(3)
+# Wait for 5 seconds
+rospy.sleep(5)
 
-# Perform landing
+print('Perform landing')
 land()

clover/examples/flight_marker.py

@@ -15,23 +15,23 @@ set_attitude = rospy.ServiceProxy('set_attitude', srv.SetAttitude)
 set_rates = rospy.ServiceProxy('set_rates', srv.SetRates)
 land = rospy.ServiceProxy('land', Trigger)
 
-# Take off and hover 1 m above the ground
+print('Take off and hover 1 m above the ground')
 navigate(x=0, y=0, z=1, frame_id='body', auto_arm=True)
 
-# Wait for 3 seconds
-rospy.sleep(3)
+# Wait for 5 seconds
+rospy.sleep(5)
 
-# Fly 1 meter above ArUco marker 0
+print('Fly 1 meter above ArUco marker 0')
 navigate(x=0, y=0, z=1, frame_id='aruco_0')
 
-# Wait for 3 seconds
-rospy.sleep(3)
+# Wait for 5 seconds
+rospy.sleep(5)
 
-# Fly to x=1 y=1 z=1 relative to ArUco markers map
+print('Fly to x=1 y=1 z=1 relative to ArUco markers map')
 navigate(x=1, y=1, z=1, frame_id='aruco_map')
 
-# Wait for 3 seconds
-rospy.sleep(3)
+# Wait for 5 seconds
+rospy.sleep(5)
 
-# Perform landing
+print('Perform landing')
 land()

clover/examples/get_telemetry.py

@@ -0,0 +1,11 @@
+# Information: https://clover.coex.tech/en/simple_offboard.html#gettelemetry
+
+import rospy
+from clover import srv
+
+rospy.init_node('flight')
+
+get_telemetry = rospy.ServiceProxy('get_telemetry', srv.GetTelemetry)
+
+# Print drone's state
+print(get_telemetry())

clover/examples/gps.py

@@ -0,0 +1,47 @@
+# Information: https://clover.coex.tech/en/simple_offboard.html#navigateglobal
+
+import rospy
+from clover import srv
+from std_srvs.srv import Trigger
+import math
+
+rospy.init_node('flight')
+
+get_telemetry = rospy.ServiceProxy('get_telemetry', srv.GetTelemetry)
+navigate = rospy.ServiceProxy('navigate', srv.Navigate)
+navigate_global = rospy.ServiceProxy('navigate_global', srv.NavigateGlobal)
+set_position = rospy.ServiceProxy('set_position', srv.SetPosition)
+set_velocity = rospy.ServiceProxy('set_velocity', srv.SetVelocity)
+set_attitude = rospy.ServiceProxy('set_attitude', srv.SetAttitude)
+set_rates = rospy.ServiceProxy('set_rates', srv.SetRates)
+land = rospy.ServiceProxy('land', Trigger)
+
+# https://clover.coex.tech/en/snippets.html#wait_arrival
+def wait_arrival(tolerance=0.2):
+    while not rospy.is_shutdown():
+        telem = get_telemetry(frame_id='navigate_target')
+        if math.sqrt(telem.x ** 2 + telem.y ** 2 + telem.z ** 2) < tolerance:
+            break
+        rospy.sleep(0.2)
+
+start = get_telemetry()
+
+if math.isnan(start.lat):
+    raise Exception('No global position, install and configure GPS sensor: https://clover.coex.tech/gps')
+
+print('Start point global position: lat={}, lon={}'.format(start.lat, start.lon))
+
+print('Take off 3 meters')
+navigate(x=0, y=0, z=3, frame_id='body', auto_arm=True)
+wait_arrival()
+
+print('Fly 1 arcsecond to the North (approx. 30 meters)')
+navigate_global(lat=start.lat+1.0/60/60, lon=start.lon, z=start.z+3, yaw=math.inf, speed=5)
+wait_arrival()
+
+print('Fly to home position')
+navigate_global(lat=start.lat, lon=start.lon, z=start.z+3, yaw=math.inf, speed=5)
+wait_arrival()
+
+print('Land')
+land()

clover/examples/navigate_wait.py

@@ -31,11 +31,11 @@ def navigate_wait(x=0, y=0, z=0, yaw=float('nan'), yaw_rate=0, speed=0.5, \
             return res
         rospy.sleep(0.2)
 
-# Take off 1 meter
+print('Take off 1 meter')
 navigate_wait(z=1, frame_id='body', auto_arm=True)
 
-# Fly forward 1 m
+print('Fly forward 1 m')
 navigate_wait(x=1, frame_id='body')
 
-# Land
+print('Land')
 land()

clover/examples/subscriber.py

@@ -0,0 +1,15 @@
+# Information: https://clover.coex.tech/en/laser.html
+
+import rospy
+from sensor_msgs.msg import Range
+
+rospy.init_node('process_rangefinder')
+
+def range_callback(msg):
+    # Process data from the rangefinder
+    print('Rangefinder distance:', msg.range)
+
+# Subscribe to laser rangefinder data
+rospy.Subscriber('rangefinder/range', Range, range_callback)
+
+rospy.spin()

clover/launch/aruco.launch

@@ -3,16 +3,16 @@
     <arg name="aruco_map" default="false"/>
     <arg name="aruco_vpe" default="false"/>
     <arg name="placement" default="floor"/> <!-- markers placement: floor, ceiling, unknown -->
-    <arg name="length" default="0.33"/> <!-- not-in-map markers length, m -->
+    <arg name="length" default="0.22"/> <!-- not-in-map markers length, m -->
     <arg name="map" default="map.txt"/> <!-- markers map file name -->
 
     <!-- For additional help go to https://clover.coex.tech/aruco -->
 
     <!-- aruco_detect: detect aruco markers, estimate poses -->
-    <node name="aruco_detect" pkg="nodelet" if="$(arg aruco_detect)" type="nodelet" args="load aruco_pose/aruco_detect nodelet_manager" output="screen" clear_params="true" respawn="true">
+    <node name="aruco_detect" pkg="nodelet" if="$(arg aruco_detect)" type="nodelet" args="load aruco_pose/aruco_detect main_camera_nodelet_manager" output="screen" clear_params="true" respawn="true">
         <remap from="image_raw" to="main_camera/image_raw"/>
         <remap from="camera_info" to="main_camera/camera_info"/>
-        <remap from="map_markers" to="aruco_map/markers" if="$(arg aruco_map)"/>
+        <remap from="map_markers" to="aruco_map/markers"/>
         <param name="estimate_poses" value="true"/>
         <param name="send_tf" value="true"/>
         <param name="known_tilt" value="map" if="$(eval placement == 'floor')"/>
@@ -26,7 +26,7 @@
     </node>
 
     <!-- aruco_map: estimate aruco map pose -->
-    <node name="aruco_map" pkg="nodelet" type="nodelet" if="$(arg aruco_map)" args="load aruco_pose/aruco_map nodelet_manager" output="screen" clear_params="true" respawn="true">
+    <node name="aruco_map" pkg="nodelet" type="nodelet" if="$(arg aruco_map)" args="load aruco_pose/aruco_map main_camera_nodelet_manager" output="screen" clear_params="true" respawn="true">
         <remap from="image_raw" to="main_camera/image_raw"/>
         <remap from="camera_info" to="main_camera/camera_info"/>
         <remap from="markers" to="aruco_detect/markers"/>

clover/launch/clover.launch

@@ -11,8 +11,7 @@
     <arg name="rangefinder_vl53l1x" default="true"/>
     <arg name="led" default="true"/>
     <arg name="blocks" default="false"/>
-    <arg name="rc" default="true"/>
-    <arg name="shell" default="true"/>
+    <arg name="rc" default="false"/>
 
     <arg name="simulator" default="false"/> <!-- flag that we are operating on a simulated drone -->
 
@@ -37,18 +36,13 @@
     <include file="$(find clover)/launch/aruco.launch" if="$(arg aruco)"/>
 
     <!-- optical flow -->
-    <node pkg="nodelet" type="nodelet" name="optical_flow" args="load clover/optical_flow nodelet_manager" if="$(arg optical_flow)" clear_params="true" output="screen" respawn="true">
+    <node pkg="nodelet" type="nodelet" name="optical_flow" args="load clover/optical_flow main_camera_nodelet_manager" if="$(arg optical_flow)" clear_params="true" output="screen" respawn="true">
         <remap from="image_raw" to="main_camera/image_raw"/>
         <remap from="camera_info" to="main_camera/camera_info"/>
         <param name="calc_flow_gyro" value="true"/>
         <param name="roi_rad" value="0.8"/>
     </node>
 
-    <!-- main nodelet manager -->
-    <node pkg="nodelet" type="nodelet" name="nodelet_manager" args="manager" output="screen" clear_params="true" respawn="true">
-        <param name="num_worker_threads" value="2"/>
-    </node>
-
     <node pkg="tf2_ros" type="static_transform_publisher" name="map_flipped_frame" args="0 0 0 3.1415926 3.1415926 0 map map_flipped"/>
 
     <!-- simplified offboard control -->
@@ -91,9 +85,6 @@
         <param name="use_fake_gcs" value="false"/>
     </node>
 
-    <!-- Shell access through ROS service -->
-    <node name="shell" pkg="clover" type="shell" output="screen" if="$(arg shell)"/>
-
     <!-- Update static directory -->
     <node pkg="roswww_static" name="roswww_static" type="main.py" clear_params="true">
         <param name="default_package" value="clover"/>

clover/launch/led.launch

@@ -36,7 +36,7 @@
             posctl: { r: 50, g: 100, b: 220 }
             offboard: { r: 220, g: 20, b: 250 }
             low_battery: { threshold: 3.6, effect: blink_fast, r: 255, g: 0, b: 0 }
-            error: { effect: flash, r: 255, g: 0, b: 0 }
+            error: { effect: flash, r: 255, g: 0, b: 0, ignore: [ "[lpe] vision position timeout" ]}
         </rosparam>
     </node>
 </launch>

clover/launch/main_camera.launch

@@ -3,6 +3,7 @@
 
     <arg name="direction_z" default="down"/> <!-- direction the camera points: down, up -->
     <arg name="direction_y" default="backward"/> <!-- direction the camera cable points: backward, forward -->
+    <arg name="device" default="/dev/video0"/> <!-- v4l2 device -->
     <arg name="simulator" default="false"/>
 
     <node if="$(eval direction_z == 'down' and direction_y == 'backward')" pkg="tf2_ros" type="static_transform_publisher" name="main_camera_frame" args="0.05 0 -0.07 -1.5707963 0 3.1415926 base_link main_camera_optical"/>
@@ -17,9 +18,14 @@
     <!-- static_transform_publisher arguments: x y z yaw pitch roll frame_id child_frame_id -->
     <!-- <node pkg="tf2_ros" type="static_transform_publisher" name="main_camera_frame" args="0.05 0 -0.07 -1.5707963 0 3.1415926 base_link main_camera_optical"/> -->
 
+    <!-- camera nodelet manager -->
+    <node pkg="nodelet" type="nodelet" name="main_camera_nodelet_manager" args="manager" output="screen" clear_params="true" respawn="true">
+        <param name="num_worker_threads" value="2"/>
+    </node>
+
     <!-- camera node -->
-    <node pkg="nodelet" type="nodelet" name="main_camera" args="load cv_camera/CvCameraNodelet nodelet_manager" clear_params="true" unless="$(arg simulator)" respawn="true">
-        <param name="device_path" value="/dev/video0"/> <!-- v4l2 device -->
+    <node pkg="nodelet" type="nodelet" name="main_camera" args="load cv_camera/CvCameraNodelet main_camera_nodelet_manager" launch-prefix="rosrun clover waitfile $(arg device)" clear_params="true" unless="$(arg simulator)" respawn="true">
+        <param name="device_path" value="$(arg device)"/>
         <param name="frame_id" value="main_camera_optical"/>
         <param name="camera_info_url" value="file://$(find clover)/camera_info/fisheye_cam.yaml"/>
 

clover/launch/mavros.launch

@@ -6,13 +6,16 @@
     <arg name="viz" default="true"/>
     <arg name="respawn" default="true"/>
     <arg name="distance_sensor_remap" default="rangefinder/range"/>
+    <arg name="usb_device" default="/dev/px4fmu"/>
+    <arg name="prefix" default="" unless="$(eval fcu_conn == 'usb')"/>
+    <arg name="prefix" default="rosrun clover waitfile $(arg usb_device)" if="$(eval fcu_conn == 'usb')"/>
 
-    <node pkg="mavros" type="mavros_node" name="mavros" required="false" clear_params="true" respawn="$(arg respawn)" unless="$(eval fcu_conn == 'none')" respawn_delay="1" output="screen">
+    <node pkg="mavros" type="mavros_node" name="mavros" launch-prefix="$(arg prefix)" required="false" clear_params="true" respawn="$(arg respawn)" unless="$(eval fcu_conn == 'none')" respawn_delay="1" output="screen">
         <!-- UART connection -->
         <param name="fcu_url" value="/dev/ttyAMA0:921600" if="$(eval fcu_conn is None or fcu_conn == 'uart')"/>
 
         <!-- USB connection -->
-        <param name="fcu_url" value="/dev/px4fmu" if="$(eval fcu_conn == 'usb')"/>
+        <param name="fcu_url" value="$(arg usb_device)" if="$(eval fcu_conn == 'usb')"/>
 
         <!-- sitl before PX4 1.9.0 -->
         <param name="fcu_url" value="udp://@$(arg fcu_ip):14557" if="$(eval fcu_conn == 'udp')"/>

clover/launch/mavros_config.yaml

@@ -13,6 +13,7 @@ time:
   time_ref_source: "fcu"  # time_reference source
   timesync_mode: MAVLINK
   timesync_avg_alpha: 0.6 # timesync averaging factor
+  publish_sim_time: false # don't publish /clock
 
 global_position:
   frame_id: "map"             # origin frame

clover/src/led.cpp

@@ -12,6 +12,7 @@
 
 #include <ros/ros.h>
 #include <string>
+#include <vector>
 #include <boost/algorithm/string.hpp>
 
 #include <clover/SetLEDEffect.h>
@@ -29,6 +30,7 @@ ros::Timer timer;
 ros::Time start_time;
 double blink_rate, blink_fast_rate, flash_delay, fade_period, wipe_period, rainbow_period;
 double low_battery_threshold;
+std::vector<std::string> error_ignore;
 bool blink_state;
 led_msgs::SetLEDs set_leds;
 led_msgs::LEDStateArray state, start_state;
@@ -274,6 +276,10 @@ void handleMavrosState(const mavros_msgs::State& msg)
 void handleLog(const rosgraph_msgs::Log& log)
 {
 	if (log.level >= rosgraph_msgs::Log::ERROR) {
+		// check if ignored
+		for (auto const& str : error_ignore) {
+			if (log.msg.find(str) != std::string::npos) return;
+		}
 		notify("error");
 	}
 }
@@ -302,6 +308,7 @@ int main(int argc, char **argv)
 	nh_priv.param("rainbow_period", rainbow_period, 5.0);
 
 	nh_priv.param("notify/low_battery/threshold", low_battery_threshold, 3.7);
+	nh_priv.param("notify/error/ignore", error_ignore, {});
 
 	ros::service::waitForService("set_leds"); // cannot work without set_leds service
 	set_leds_srv = nh.serviceClient<led_msgs::SetLEDs>("set_leds", true);

clover/src/optical_flow.cpp

@@ -53,6 +53,7 @@ private:
 	std::unique_ptr<tf2_ros::Buffer> tf_buffer_;
 	std::unique_ptr<tf2_ros::TransformListener> tf_listener_;
 	bool calc_flow_gyro_;
+	float flow_gyro_default_;
 
 	void onInit()
 	{
@@ -69,15 +70,13 @@ private:
 		roi_px_ = nh_priv.param("roi", 128);
 		roi_rad_ = nh_priv.param("roi_rad", 0.0);
 		calc_flow_gyro_ = nh_priv.param("calc_flow_gyro", false);
+		flow_gyro_default_ = nh_priv.param("flow_gyro_default", NAN);
 
 		img_pub_ = it_priv.advertise("debug", 1);
 		flow_pub_ = nh.advertise<mavros_msgs::OpticalFlowRad>("mavros/px4flow/raw/send", 1);
 		velo_pub_ = nh_priv.advertise<geometry_msgs::TwistStamped>("angular_velocity", 1);
 		shift_pub_ = nh_priv.advertise<geometry_msgs::Vector3Stamped>("shift", 1);
 
-		flow_.integrated_xgyro = NAN; // no IMU available
-		flow_.integrated_ygyro = NAN;
-		flow_.integrated_zgyro = NAN;
 		flow_.time_delta_distance_us = 0;
 		flow_.distance = -1; // no distance sensor available
 		flow_.temperature = 0;
@@ -153,7 +152,7 @@ private:
 			cv::Point2d shift = cv::phaseCorrelate(prev_, curr_, hann_, &response);
 
 			// Publish raw shift in pixels
-			static geometry_msgs::Vector3Stamped shift_vec;
+			geometry_msgs::Vector3Stamped shift_vec;
 			shift_vec.header.stamp = msg->header.stamp;
 			shift_vec.header.frame_id = msg->header.frame_id;
 			shift_vec.vector.x = shift.x;
@@ -179,8 +178,8 @@ private:
 			double flow_x = atan2(points_undist[0].x, focal_length_x);
 			double flow_y = atan2(points_undist[0].y, focal_length_y);
 
-			// // Convert to FCU frame
-			static geometry_msgs::Vector3Stamped flow_camera, flow_fcu;
+			// Convert to FCU frame
+			geometry_msgs::Vector3Stamped flow_camera, flow_fcu;
 			flow_camera.header.frame_id = msg->header.frame_id;
 			flow_camera.header.stamp = msg->header.stamp;
 			flow_camera.vector.x = flow_y; // +y means counter-clockwise rotation around Y axis
@@ -196,18 +195,21 @@ private:
 			ros::Duration integration_time = msg->header.stamp - prev_stamp_;
 			uint32_t integration_time_us = integration_time.toSec() * 1.0e6;
 
+			// Calculate flow gyro
+			flow_.integrated_xgyro = flow_gyro_default_;
+			flow_.integrated_ygyro = flow_gyro_default_;
+			flow_.integrated_zgyro = flow_gyro_default_;
+
 			if (calc_flow_gyro_) {
 				try {
 					auto flow_gyro_camera = calcFlowGyro(msg->header.frame_id, prev_stamp_, msg->header.stamp);
-					static geometry_msgs::Vector3Stamped flow_gyro_fcu;
+					geometry_msgs::Vector3Stamped flow_gyro_fcu;
 					tf_buffer_->transform(flow_gyro_camera, flow_gyro_fcu, fcu_frame_id_);
 					flow_.integrated_xgyro = flow_gyro_fcu.vector.x;
 					flow_.integrated_ygyro = flow_gyro_fcu.vector.y;
 					flow_.integrated_zgyro = flow_gyro_fcu.vector.z;
 				} catch (const tf2::TransformException& e) {
-					// Invalidate previous frame
-					prev_.release();
-					return;
+					// Transform not available, keep NANs in flow gyro
 				}
 			}
 
@@ -219,6 +221,10 @@ private:
 			flow_.quality = (uint8_t)(response * 255);
 			flow_pub_.publish(flow_);
 
+			prev_ = curr_.clone();
+			prev_stamp_ = msg->header.stamp;
+
+publish_debug:
 			// Publish debug image
 			if (img_pub_.getNumSubscribers() > 0) {
 				// publish debug image
@@ -232,15 +238,12 @@ private:
 			}
 
 			// Publish estimated angular velocity
-			static geometry_msgs::TwistStamped velo;
+			geometry_msgs::TwistStamped velo;
 			velo.header.stamp = msg->header.stamp;
 			velo.header.frame_id = fcu_frame_id_;
-			velo.twist.angular.x = flow_.integrated_x / integration_time.toSec();
-			velo.twist.angular.y = flow_.integrated_y / integration_time.toSec();
+			velo.twist.angular.x = flow_fcu.vector.x / integration_time.toSec();
+			velo.twist.angular.y = flow_fcu.vector.y / integration_time.toSec();
 			velo_pub_.publish(velo);
-
-			prev_ = curr_.clone();
-			prev_stamp_ = msg->header.stamp;
 		}
 	}
 

clover/src/selfcheck.py

@@ -43,6 +43,8 @@ from mavros import mavlink
 
 rospy.init_node('selfcheck')
 
+os.environ['ROSCONSOLE_FORMAT']='[${severity}]: ${message}'
+
 
 tf_buffer = tf2_ros.Buffer()
 tf_listener = tf2_ros.TransformListener(tf_buffer)
@@ -199,18 +201,13 @@ def check_fcu():
         if version_str == '':
             info('no version data available from SITL')
 
-        r = re.compile(r'^FW (git tag|version): (v?\d\.\d\.\d.*)$')
-        is_clover_firmware = False
-        for ver_line in version_str.split('\n'):
-            match = r.search(ver_line)
-            if match is not None:
-                field, version = match.groups()
-                info('firmware %s: %s' % (field, version))
-                if 'clover' in version or 'clever' in version:
-                    is_clover_firmware = True
-
-        if not is_clover_firmware:
-            failure('not running Clover PX4 firmware, https://clover.coex.tech/firmware')
+        for line in version_str.split('\n'):
+            if line.startswith('FW version: '):
+                info(line[len('FW version: '):])
+            elif line.startswith('FW git tag: '):
+                info(line[len('FW git tag: '):])
+            elif line.startswith('HW arch: '):
+                info(line[len('HW arch: '):])
 
         est = get_param('SYS_MC_EST_GROUP')
         if est == 1:
@@ -618,7 +615,7 @@ def check_boot_duration():
 
 @check('CPU usage')
 def check_cpu_usage():
-    WHITELIST = 'nodelet',
+    WHITELIST = 'nodelet', 'gzclient', 'gzserver'
     CMD = "top -n 1 -b -i | tail -n +8 | awk '{ printf(\"%-8s\\t%-8s\\t%-8s\\n\", $1, $9, $12); }'"
     output = subprocess.check_output(CMD, shell=True).decode()
     processes = output.split('\n')
@@ -646,13 +643,22 @@ def check_clover_service():
     elif 'failed' in output:
         failure('service failed to run, check your launch-files')
 
-    r = re.compile(r'^(.*)\[(FATAL|ERROR)\] \[\d+.\d+\]: (.*?)(\x1b(.*))?$')
+    BLACKLIST = 'Unexpected command 520', 'Time jump detected', 'different index:'
+
+    r = re.compile(r'^(.*)\[(FATAL|ERROR| WARN)\] \[\d+.\d+\]: (.*?)(\x1b(.*))?$')
     error_count = OrderedDict()
     try:
         for line in open('/tmp/clover.err', 'r'):
+            skip = False
+            for substr in BLACKLIST:
+                if substr in line:
+                    skip = True
+            if skip:
+                continue
+
             node_error = r.search(line)
             if node_error:
-                msg = node_error.groups()[1] + ': ' + node_error.groups()[2]
+                msg = node_error.groups()[1].strip() + ': ' + node_error.groups()[2]
                 if msg in error_count:
                     error_count[msg] += 1
                 else:
@@ -753,7 +759,7 @@ def check_rpi_health():
         # with some of the FLAGs OR'ed together
         output = subprocess.check_output(['vcgencmd', 'get_throttled']).decode()
     except OSError:
-        failure('could not call vcgencmd binary; not a Raspberry Pi?')
+        info('could not call vcgencmd binary; not a Raspberry Pi?')
         return
 
     throttle_mask = int(output.split('=')[1], base=16)

clover/src/simple_offboard.cpp

@@ -181,9 +181,10 @@ inline bool waitTransform(const string& target, const string& source,
 		ros::spinOnce();
 		r.sleep();
 	}
+	return false;
 }
 
-#define TIMEOUT(msg, timeout) (ros::Time::now() - msg.header.stamp > timeout)
+#define TIMEOUT(msg, timeout) (msg.header.stamp.isZero() || (ros::Time::now() - msg.header.stamp > timeout))
 
 bool getTelemetry(GetTelemetry::Request& req, GetTelemetry::Response& res)
 {
@@ -441,6 +442,10 @@ void publish(const ros::Time stamp)
 
 		// publish setpoint frame
 		if (!setpoint.child_frame_id.empty()) {
+			if (setpoint.header.stamp == position_msg.header.stamp) {
+				return; // avoid TF_REPEATED_DATA warnings
+			}
+
 			setpoint.transform.translation.x = position_msg.pose.position.x;
 			setpoint.transform.translation.y = position_msg.pose.position.y;
 			setpoint.transform.translation.z = position_msg.pose.position.z;
@@ -712,7 +717,7 @@ bool serve(enum setpoint_type_t sp_type, float x, float y, float z, float vx, fl
 		}
 
 		if (sp_type == VELOCITY) {
-			static Vector3Stamped vel;
+			Vector3Stamped vel;
 			vel.header.frame_id = frame_id;
 			vel.header.stamp = stamp;
 			vel.vector.x = vx;
@@ -843,6 +848,7 @@ bool land(std_srvs::Trigger::Request& req, std_srvs::Trigger::Response& res)
 		busy = false;
 		return true;
 	}
+	return false;
 }
 
 int main(int argc, char **argv)

clover/src/vpe_publisher.cpp

@@ -53,7 +53,7 @@ void publishZero(const ros::TimerEvent& e)
 	}
 
 	ROS_INFO_THROTTLE(10, "publish zero");
-	static geometry_msgs::PoseStamped zero;
+	geometry_msgs::PoseStamped zero;
 	zero.header.frame_id = local_frame_id;
 	zero.header.stamp = e.current_real;
 	zero.pose.orientation.w = 1;

clover/src/waitfile

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+# $ ./waitfile <file> <command> <args...> 
+# wait until <file> appears and then invoke <command> with <args>
+
+echo "wait for file $1"
+while [ ! -e "$1" ]; do sleep 1; done;
+echo "file $1 appeared"
+exec "${@:2}"

clover/test/basic.py

@@ -33,19 +33,3 @@ def test_web_video_server(node):
         # Python 3
         import urllib.request as urllib
     urllib.urlopen("http://localhost:8080").read()
-
-def test_shell(node):
-    execute = rospy.ServiceProxy('exec', srv.Execute)
-    execute.wait_for_service(5)
-
-    res = execute(cmd='echo foo')
-    assert res.code == 0
-    assert res.output == 'foo\n'
-
-    res = execute(cmd='foo')
-    assert res.code == 32512
-    assert res.output == ''
-
-    res = execute(cmd='ls foo')
-    assert res.code == 512
-    assert res.output == ''

clover/udev/99-px4fmu.rules

@@ -12,4 +12,6 @@ SUBSYSTEM=="tty", ATTRS{idVendor}=="26ac", ATTRS{idProduct}=="0016", ATTRS{produ
 SUBSYSTEM=="tty", ATTRS{idVendor}=="26ac", ATTRS{idProduct}=="0013", ATTRS{product}=="PX4 FMU v4.x PRO", SYMLINK+="px4fmu"
 # Omnibus
 SUBSYSTEM=="tty", ATTRS{idVendor}=="26ac", ATTRS{idProduct}=="0001", ATTRS{product}=="PX4 OmnibusF4SD", SYMLINK+="px4fmu"
+# CUAV X7 Pro
+SUBSYSTEM=="tty", ATTRS{idVendor}=="3163", ATTRS{idProduct}=="004c", ATTRS{product}=="PX4 CUAV X7Pro", SYMLINK+="px4fmu"
 

clover/www/clover.log

@@ -0,0 +1 @@
+/var/log/clover.log

clover/www/clover_version

@@ -0,0 +1 @@
+/etc/clover_version

clover/www/index.html

@@ -4,24 +4,33 @@
 
 <ul>
 	<li><a href="docs">View documentation</a> (snapshot of <a href="https://clover.coex.tech">clover.coex.tech</a>)</li>
+	<li><a href="topics.html">View topics</a></li>
 	<li><a href="" id="wvs">View image topics</a> (<code>web_video_server</code>)</li>
 	<li><a href="" id="butterfly">Open web terminal</a> (<code>Butterfly</code>)</li>
-	<li><a href="viz.html">View 3D visualization</a> (<code>ros3djs</code>)</li>
-	<li><a href="aruco_map.html">3D visualization for markers map</a> (<code>ros3djs</code>)</li>
+	<li>View <a href="viz.html">View 3D visualization</a>, <a href="aruco_map.html">3D visualization for markers map</a> (<code>ros3djs</code>)</li>
 	<li><a href="../clover_blocks/">Blocks programming</a> (<code>Blockly</code>)</li>
+	<li><a href="clover.log">Clover console</a> (<code>/var/log/clover.log</code>)</li>
 </ul>
 
 <div class="version"></div>
 
-<script src="js/roslib.js"></script>
 <script type="text/javascript">
 	document.querySelector("#wvs").href = location.protocol + '//' + location.hostname + ':8080';
 	document.querySelector("#butterfly").href = location.protocol + '//' + location.hostname + ':57575';
 
+	document.querySelector("#butterfly").addEventListener('click', function(e) {
+		if (location.hostname == 'localhost' || location.hostname == '127.0.0.1') {
+			if (!confirm('Please use regular Terminal app on a local machine.\nClick OK to proceed to Butterfly anyway.')) {
+				e.preventDefault();
+			}
+		}
+	});
+
 	// Determine image version
-	var ros = new ROSLIB.Ros({ url: 'ws://' + location.hostname + ':9090' });
-	var exec = new ROSLIB.Service({ ros: ros, name : '/exec', serviceType : 'clover/Execute' });
-	exec.callService(new ROSLIB.ServiceRequest({ cmd: 'cat /etc/clover_version' }), function(result) {
-		document.querySelector('.version').innerHTML = 'Version: ' + result.output;
+	fetch('clover_version').then(function(response) {
+		if (response.status !== 200) return;
+		response.text().then(function(text) {
+			document.querySelector('.version').innerHTML = 'Version: ' + text;
+		});
 	});
 </script>

clover/www/js/json-to-pretty-yaml.js

@@ -0,0 +1,236 @@
+// Browserified https://www.npmjs.com/package/json-to-pretty-yaml module
+
+(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+(function() {
+    "use strict";
+
+    var typeOf = require('remedial').typeOf;
+    var trimWhitespace = require('remove-trailing-spaces');
+
+    function stringify(data) {
+        var handlers, indentLevel = '';
+
+        handlers = {
+            "undefined": function() {
+                // objects will not have `undefined` converted to `null`
+                // as this may have unintended consequences
+                // For arrays, however, this behavior seems appropriate
+                return 'null';
+            },
+            "null": function() {
+                return 'null';
+            },
+            "number": function(x) {
+                return x;
+            },
+            "boolean": function(x) {
+                return x ? 'true' : 'false';
+            },
+            "string": function(x) {
+                // to avoid the string "true" being confused with the
+                // the literal `true`, we always wrap strings in quotes
+                return JSON.stringify(x);
+            },
+            "array": function(x) {
+                var output = '';
+
+                if (0 === x.length) {
+                    output += '[]';
+                    return output;
+                }
+
+                indentLevel = indentLevel.replace(/$/, '  ');
+                x.forEach(function(y, i) {
+                    // TODO how should `undefined` be handled?
+                    var handler = handlers[typeOf(y)];
+
+                    if (!handler) {
+                        throw new Error('what the crap: ' + typeOf(y));
+                    }
+
+                    output += '\n' + indentLevel + '- ' + handler(y, true);
+
+                });
+                indentLevel = indentLevel.replace(/  /, '');
+
+                return output;
+            },
+            "object": function(x, inArray, rootNode) {
+                var output = '';
+
+                if (0 === Object.keys(x).length) {
+                    output += '{}';
+                    return output;
+                }
+
+                if (!rootNode) {
+                    indentLevel = indentLevel.replace(/$/, '  ');
+                }
+
+                Object.keys(x).forEach(function(k, i) {
+                    var val = x[k],
+                        handler = handlers[typeOf(val)];
+
+                    if ('undefined' === typeof val) {
+                        // the user should do
+                        // delete obj.key
+                        // and not
+                        // obj.key = undefined
+                        // but we'll error on the side of caution
+                        return;
+                    }
+
+                    if (!handler) {
+                        throw new Error('what the crap: ' + typeOf(val));
+                    }
+
+                    if (!(inArray && i === 0)) {
+                        output += '\n' + indentLevel;
+                    }
+
+                    output += k + ': ' + handler(val);
+                });
+                indentLevel = indentLevel.replace(/  /, '');
+
+                return output;
+            },
+            "function": function() {
+                // TODO this should throw or otherwise be ignored
+                return '[object Function]';
+            }
+        };
+        return trimWhitespace(handlers[typeOf(data)](data, true, true) + '\n');
+
+    }
+
+    window.yamlStringify = stringify;
+    module.exports.stringify = stringify;
+}());
+
+},{"remedial":2,"remove-trailing-spaces":3}],2:[function(require,module,exports){
+/*jslint onevar: true, undef: true, nomen: true, eqeqeq: true, plusplus: true, bitwise: true, regexp: true, newcap: true, immed: true */
+(function () {
+    "use strict";
+
+    var global = Function('return this')()
+      , classes = "Boolean Number String Function Array Date RegExp Object".split(" ")
+      , i
+      , name
+      , class2type = {}
+      ;
+
+    for (i in classes) {
+      if (classes.hasOwnProperty(i)) {
+        name = classes[i];
+        class2type["[object " + name + "]"] = name.toLowerCase();
+      }
+    }
+
+    function typeOf(obj) {
+      return (null === obj || undefined === obj) ? String(obj) : class2type[Object.prototype.toString.call(obj)] || "object";
+    }
+
+    function isEmpty(o) {
+        var i, v;
+        if (typeOf(o) === 'object') {
+            for (i in o) { // fails jslint
+                v = o[i];
+                if (v !== undefined && typeOf(v) !== 'function') {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    if (!String.prototype.entityify) {
+        String.prototype.entityify = function () {
+            return this.replace(/&/g, "&amp;").replace(/</g,
+                "&lt;").replace(/>/g, "&gt;");
+        };
+    }
+
+    if (!String.prototype.quote) {
+        String.prototype.quote = function () {
+            var c, i, l = this.length, o = '"';
+            for (i = 0; i < l; i += 1) {
+                c = this.charAt(i);
+                if (c >= ' ') {
+                    if (c === '\\' || c === '"') {
+                        o += '\\';
+                    }
+                    o += c;
+                } else {
+                    switch (c) {
+                    case '\b':
+                        o += '\\b';
+                        break;
+                    case '\f':
+                        o += '\\f';
+                        break;
+                    case '\n':
+                        o += '\\n';
+                        break;
+                    case '\r':
+                        o += '\\r';
+                        break;
+                    case '\t':
+                        o += '\\t';
+                        break;
+                    default:
+                        c = c.charCodeAt();
+                        o += '\\u00' + Math.floor(c / 16).toString(16) +
+                            (c % 16).toString(16);
+                    }
+                }
+            }
+            return o + '"';
+        };
+    } 
+
+    if (!String.prototype.supplant) {
+        String.prototype.supplant = function (o) {
+            return this.replace(/{([^{}]*)}/g,
+                function (a, b) {
+                    var r = o[b];
+                    return typeof r === 'string' || typeof r === 'number' ? r : a;
+                }
+            );
+        };
+    }
+
+    if (!String.prototype.trim) {
+        String.prototype.trim = function () {
+            return this.replace(/^\s*(\S*(?:\s+\S+)*)\s*$/, "$1");
+        };
+    }
+
+    // CommonJS / npm / Ender.JS
+    module.exports = {
+        typeOf: typeOf,
+        isEmpty: isEmpty
+    };
+    global.typeOf = global.typeOf || typeOf;
+    global.isEmpty = global.isEmpty || isEmpty;
+}());
+
+},{}],3:[function(require,module,exports){
+"use strict";
+
+/**
+ * removeTrailingSpaces
+ * Remove the trailing spaces from a string.
+ *
+ * @name removeTrailingSpaces
+ * @function
+ * @param {String} input The input string.
+ * @returns {String} The output string.
+ */
+
+module.exports = function removeTrailingSpaces(input) {
+  // TODO If possible, use a regex
+  return input.split("\n").map(function (x) {
+    return x.trimRight();
+  }).join("\n");
+};
+},{}]},{},[1]);

clover/www/js/topics.js

@@ -0,0 +1,75 @@
+const url = 'ws://' + location.hostname + ':9090';
+const ros = new ROSLIB.Ros({ url: url });
+
+ros.on('connection', function () {
+	document.body.classList.add('connected');
+	document.body.classList.remove('closed');
+	init();
+});
+
+ros.on('close', function () {
+	document.body.classList.remove('connected');
+	document.body.classList.add('closed');
+	setTimeout(function() {
+		// reconnect
+		ros.connect(url);
+	}, 2000);
+});
+
+const title = document.querySelector('h1');
+const topicsList = document.querySelector('#topics');
+const topicMessage = document.querySelector('#topic-message');
+
+function viewTopicsList() {
+	title.innerHTML = 'Topics:';
+
+	ros.getTopics(function(topics) {
+		topicsList.innerHTML = topics.topics.map(function(topic, i) {
+			const type = topics.types[i];
+			if (type == 'sensor_msgs/Image') {
+				let url = `${location.protocol}//${location.hostname}:8080/stream_viewer?topic=${topic}`; 
+				return `<li><a href="${url}" class=topic title=${type}>${topic}</a> &#x1F5BC;</li>`;
+			} else {
+				return `<li><a href="?topic=${topic}" class=topic title=${type}>${topic}</a></li>`;
+			}
+		}).join('');
+	});
+}
+
+let rosdistro;
+
+function viewTopic(topic) {
+	let index = '<a href=topics.html>Topics</a>';
+	title.innerHTML = `${index}: ${topic}`;
+	topicMessage.style.display = 'block';
+
+	ros.getTopicType(topic, function(typeStr) {
+		const [pack, type] = typeStr.split('/');
+		let href = `https://docs.ros.org/en/${rosdistro}/api/${pack}/html/msg/${type}.html`;
+		title.innerHTML = `${index}: ${topic} <a id="topic-type" href=${href} target="_blank">${typeStr}</a>`;
+	});
+
+	new ROSLIB.Topic({ ros: ros, name: topic }).subscribe(function(msg) {
+		document.title = topic;
+		if (mouseDown) return;
+		topicMessage.innerHTML = yamlStringify(msg); // JSON.stringify(msg, null, 4);
+	});
+}
+
+let mouseDown;
+
+topicMessage.addEventListener('mousedown', function() { mouseDown = true; });
+topicMessage.addEventListener('mouseup', function() { mouseDown = false; });
+
+function init() {
+	const params = Object.fromEntries(new URLSearchParams(window.location.search).entries());
+
+	if (!params.topic) {
+		viewTopicsList();
+	} else {
+		new ROSLIB.Param({ ros: ros, name: '/rosdistro'}).get(function(value) {
+			rosdistro = value.trim();
+			viewTopic(params.topic);
+		});
+	}
+}

clover/www/topics.html

@@ -0,0 +1,28 @@
+<html lang="en">
+	<head>
+		<title>ROS topics</title>
+		<script src="js/roslib.js"></script>
+		<link rel="icon" href="data:,"> <!-- make chrome don't request icon -->
+		<script type="module" src="js/topics.js"></script>
+		<script src="js/json-to-pretty-yaml.js"></script>
+		<style>
+			#topics { line-height: 1.2em; }
+			#topic-view {
+				display: none;
+			}
+			#topic-message {
+				display: none;
+				white-space: pre;
+				font-family: monospace;
+			}
+			#topic-type { font-family: monospace; font-size: 0.5em; vertical-align: super; font-weight: normal; }
+			.topic { font-family: monospace; }
+			body.closed { background-color: rgb(207, 207, 207); }
+		</style>
+	</head>
+	<body>
+		<h1>&nbsp;</h1>
+		<ul id="topics"></ul>
+		<code id="topic-message" title="Hold mouse button to pause">No messages received</code>
+	</body>
+</html>

clover_blocks/CMakeLists.txt

@@ -73,6 +73,13 @@ catkin_install_python(PROGRAMS src/clover_blocks
   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
 )
 
+# TODO: store programs in home directory?
+install(DIRECTORY programs
+  DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
+)
+
+install(DIRECTORY www DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
+
 #############
 ## Testing ##
 #############

clover_blocks/README.md

@@ -10,7 +10,7 @@ Internal package documentation is given below.
 
 ## Frontend
 
-The frontend files are located in [`www`](./www/) subdirectory. The frontend application uses [`roblib.js`](http://wiki.ros.org/roslibjs) library for communicating with backend node and other ROS resources.
+The frontend files are located in [`www`](./www/) subdirectory. The frontend application uses [`roslib.js`](http://wiki.ros.org/roslibjs) library for communicating with backend node and other ROS resources.
 
 ## `clover_blocks` node
 
@@ -30,7 +30,8 @@ The frontend files are located in [`www`](./www/) subdirectory. The frontend app
 Parameters read by frontend:
 
 * `~navigate_tolerance` (*float*) – distance tolerance in meters, used for navigate-like blocks (default: 0.2).
-* `~yaw_tolerance` (*float*) – yaw angle tolerance in degrees, used in set_yaw block (default: 20).
+* `~navigate_global_tolerance` (*float*) – distance tolerance for global coordinates navigation (default: 1).
+* `~yaw_tolerance` (*float*) – yaw angle tolerance in degrees, used in set_yaw block (default: 1).
 * `~sleep_time` (*float*) – duration of sleep in loop cycles, used for navigate-like blocks (default: 0.2).
 * `~confirm_run` (*bool*) – enable confirmation to run the program (default: true).
 

clover_blocks/src/clover_blocks

@@ -11,7 +11,8 @@
 from __future__ import print_function
 
 import rospy
-import os
+import os, sys
+import traceback
 import threading
 import re
 import uuid
@@ -116,7 +117,12 @@ def run(req):
                 rospy.loginfo('Program forced to stop')
             except Exception as e:
                 rospy.logerr(str(e))
-                error_pub.publish(str(e))
+                traceback.print_exc()
+                etype, value, tb = sys.exc_info()
+                fmt = traceback.format_exception(etype, value, tb)
+                fmt.pop(1) # remove 'clover_blocks' file frame
+                exc_info = ''.join(fmt)
+                error_pub.publish(str(e) + '\n\n' + exc_info)
 
             rospy.loginfo('Program terminated')
             running_lock.release()
@@ -140,6 +146,7 @@ def stop(req):
     return {'success': True}
 
 
+# TODO: find dir in installed package
 programs_path = rospy.get_param('~programs_dir', os.path.dirname(os.path.abspath(__file__)) + '/../programs')
 
 

clover_blocks/www/blocks.js

@@ -31,6 +31,14 @@ function considerFrameId(e) {
 			this.getInput('Y').fieldRow[0].setValue('y');
 			this.getInput('Z').fieldRow[0].setValue('z');
 		}
+		if (this.getInput('LAT')) { // block has global coordinates
+			let global = frameId.startsWith('GLOBAL');
+			this.getInput('LAT').setVisible(global);
+			this.getInput('LON').setVisible(global);
+			this.getInput('X').setVisible(!global);
+			this.getInput('Y').setVisible(!global);
+			this.getInput('Z').fieldRow[0].setValue(frameId == 'GLOBAL' ? 'altitude' : 'z');
+		}
 	}
 	if (this.getInput('ID')) { // block has marker id field
 		this.getInput('ID').setVisible(frameId == 'ARUCO'); // toggle id field
@@ -65,6 +73,9 @@ function updateSetpointBlock(e) {
 
 Blockly.Blocks['navigate'] = {
 	init: function () {
+		let navFrameId = frameIds.slice();
+		navFrameId.push(['global', 'GLOBAL_LOCAL'])
+		navFrameId.push(['global, WGS 84 alt.', 'GLOBAL'])
 		this.appendDummyInput()
 			.appendField("navigate to point");
 		this.appendValueInput("X")
@@ -73,12 +84,20 @@ Blockly.Blocks['navigate'] = {
 		this.appendValueInput("Y")
 			.setCheck("Number")
 			.appendField("left");
+		this.appendValueInput("LAT")
+			.setCheck("Number")
+			.appendField("latitude")
+			.setVisible(false);
+		this.appendValueInput("LON")
+			.setCheck("Number")
+			.appendField("longitude")
+			.setVisible(false)
 		this.appendValueInput("Z")
 			.setCheck("Number")
 			.appendField("up");
 		this.appendDummyInput()
 			.appendField("relative to")
-			.appendField(new Blockly.FieldDropdown(frameIds), "FRAME_ID");
+			.appendField(new Blockly.FieldDropdown(navFrameId), "FRAME_ID");
 		this.appendValueInput("ID")
 			.setCheck("Number")
 			.appendField("with ID")
@@ -268,7 +287,7 @@ Blockly.Blocks['mode'] = {
 			.appendField("current flight mode");
 		this.setOutput(true, "String");
 		this.setColour(COLOR_STATE);
-		this.setTooltip("");
+		this.setTooltip("Returns current flight mode (POSCTL, OFFBOARD, etc).");
 		this.setHelpUrl(DOCS_URL + '#' + this.type);
 	}
 };
@@ -375,7 +394,7 @@ Blockly.Blocks['take_off'] = {
 		this.setPreviousStatement(true, null);
 		this.setNextStatement(true, null);
 		this.setColour(COLOR_FLIGHT);
-		this.setTooltip("Take off on desired altitude in meters");
+		this.setTooltip("Take off on desired altitude in meters.");
 		this.setHelpUrl(DOCS_URL + '#' + this.type);
 	}
 };
@@ -391,7 +410,7 @@ Blockly.Blocks['land'] = {
 		this.setPreviousStatement(true, null);
 		this.setNextStatement(true, null);
 		this.setColour(COLOR_FLIGHT);
-		this.setTooltip("");
+		this.setTooltip("Land the drone.");
 		this.setHelpUrl(DOCS_URL + '#' + this.type);
 	}
 };
@@ -400,10 +419,10 @@ Blockly.Blocks['global_position'] = {
 	init: function () {
 		this.appendDummyInput()
 			.appendField("current")
-			.appendField(new Blockly.FieldDropdown([["latitude", "LATITUDE"], ["longitude", "LONGITUDE"], ["altitude", "ALTITUDE"]]), "NAME");
+			.appendField(new Blockly.FieldDropdown([["latitude", "LAT"], ["longitude", "LON"], ["altitude", "ALT"]]), "FIELD");
 		this.setOutput(true, "Number");
-		this.setColour(230);
-		this.setTooltip("");
+		this.setColour(COLOR_STATE);
+		this.setTooltip("Returns current global position (latitude, longitude, altitude above the WGS 84 ellipsoid).");
 		this.setHelpUrl(DOCS_URL + '#' + this.type);
 	}
 };

clover_blocks/www/index.html

@@ -52,6 +52,8 @@
 				<value name="X"><shadow type="math_number"><field name="NUM">0</field></shadow></value>
 				<value name="Y"><shadow type="math_number"><field name="NUM">0</field></shadow></value>
 				<value name="Z"><shadow type="math_number"><field name="NUM">0</field></shadow></value>
+				<value name="LAT"><shadow type="math_number"><field name="NUM">47.397503</field></shadow></value>
+				<value name="LON"><shadow type="math_number"><field name="NUM">8.544945</field></shadow></value>
 				<value name="SPEED"><shadow type="math_number"><field name="NUM">0.5</field></shadow></value>
 				<value name="ID"><shadow type="math_number"><field name="NUM">0</field></shadow></value>
 			</block>
@@ -85,6 +87,7 @@
 				<value name="ID"><shadow type="math_number"><field name="NUM">0</field></shadow></value>
 			</block>
 			<block type="get_attitude"></block>
+			<block type="global_position"></block>
 			<block type="distance">
 				<value name="X"><shadow type="math_number"><field name="NUM">0</field></shadow></value>
 				<value name="Y"><shadow type="math_number"><field name="NUM">0</field></shadow></value>

clover_blocks/www/main.js

@@ -39,7 +39,8 @@ var workspace = Blockly.inject('blockly', {
 function readParams() {
 	return Promise.all([
 		ros.readParam('navigate_tolerance', true, 0.2),
-		ros.readParam('yaw_tolerance', true, 20),
+		ros.readParam('navigate_global_tolerance', true, 1),
+		ros.readParam('yaw_tolerance', true, 1),
 		ros.readParam('sleep_time', true, 0.2),
 		ros.readParam('confirm_run', true, true),
 	]);
@@ -210,7 +211,7 @@ function loadPrograms() {
 		updateChanged();
 	}, function(err) {
 		document.querySelector('.backend-fail').style.display = 'inline';
-		alert(`Error loading programs list.\n\nHave you enabled clover_blocks in clover.launch?`);
+		alert(`Error loading programs list.\n\nHave you enabled 'blocks' in clover.launch?`);
 		runButton.disabled = true;
 	})
 }

clover_blocks/www/python.js

@@ -33,6 +33,18 @@ const NAVIGATE_WAIT = () => `\ndef navigate_wait(x=0, y=0, z=0, speed=0.5, frame
             return
         rospy.sleep(${params.sleep_time})\n`;
 
+const NAVIGATE_GLOBAL_WAIT = () => `\ndef navigate_global_wait(lat, lon, z, speed=0.5):
+    res = navigate_global(lat=lat, lon=lon, z=z, yaw=float('inf'), speed=speed)
+
+    if not res.success:
+        raise Exception(res.message)
+
+    while not rospy.is_shutdown():
+        telem = get_telemetry(frame_id='navigate_target')
+        if math.sqrt(telem.x ** 2 + telem.y ** 2 + telem.z ** 2) < ${params.navigate_global_tolerance}:
+            return
+        rospy.sleep(${params.sleep_time})\n`;
+
 const LAND_WAIT = () => `\ndef land_wait():
     land()
     while get_telemetry().armed:
@@ -68,6 +80,9 @@ function generateROSDefinitions() {
 	if (rosDefinitions.offboard) {
 		code += `get_telemetry = rospy.ServiceProxy('get_telemetry', srv.GetTelemetry)\n`;
 		code += `navigate = rospy.ServiceProxy('navigate', srv.Navigate)\n`;
+		if (rosDefinitions.navigateGlobal) {
+		code += `navigate_global = rospy.ServiceProxy('navigate_global', srv.NavigateGlobal)\n`;
+		}
 		if (rosDefinitions.setVelocity) {
 			code += `set_velocity = rospy.ServiceProxy('set_velocity', srv.SetVelocity)\n`;
 		}
@@ -94,6 +109,10 @@ function generateROSDefinitions() {
 		Blockly.Python.definitions_['import_math'] = 'import math';
 		code += NAVIGATE_WAIT();
 	}
+	if (rosDefinitions.navigateGlobalWait) {
+		Blockly.Python.definitions_['import_math'] = 'import math';
+		code += NAVIGATE_GLOBAL_WAIT();
+	}
 	if (rosDefinitions.landWait) {
 		code += LAND_WAIT();
 	}
@@ -161,24 +180,48 @@ Blockly.Python.navigate = function(block) {
 	let x = Blockly.Python.valueToCode(block, 'X', Blockly.Python.ORDER_NONE);
 	let y = Blockly.Python.valueToCode(block, 'Y', Blockly.Python.ORDER_NONE);
 	let z = Blockly.Python.valueToCode(block, 'Z', Blockly.Python.ORDER_NONE);
-	let frameId = buildFrameId(block);
+	let lat = Blockly.Python.valueToCode(block, 'LAT', Blockly.Python.ORDER_NONE);
+	let lon = Blockly.Python.valueToCode(block, 'LON', Blockly.Python.ORDER_NONE);
+	let wait = block.getFieldValue('WAIT') == 'TRUE';
+	let frameId = block.getFieldValue('FRAME_ID');
 	let speed = Blockly.Python.valueToCode(block, 'SPEED', Blockly.Python.ORDER_NONE);
 
-	let params = [`x=${x}`, `y=${y}`, `z=${z}`, `frame_id=${frameId}`, `speed=${speed}`];
-
 	simpleOffboard();
 
-	if (block.getFieldValue('WAIT') == 'TRUE') {
-		rosDefinitions.navigateWait = true;
+	// global coordinates
+	if (frameId.startsWith('GLOBAL')) {
+		rosDefinitions.navigateGlobal = true;
 		simpleOffboard();
 
-		return `navigate_wait(${params.join(', ')})\n`;
+		if (frameId == 'GLOBAL') {
+			z = `${z} + get_telemetry().alt - get_telemetry().z`;
+		}
+
+		if (wait) {
+			rosDefinitions.navigateGlobalWait = true;
+			simpleOffboard();
+			return `navigate_global_wait(lat=${lat}, lon=${lon}, z=${z}, speed=${speed})\n`;
+
+		} else {
+			return `navigate_global(lat=${lat}, lon=${lon}, z=${z}, yaw=float('inf'), speed=${speed})\n`;
+		}
 
 	} else {
-		if (frameId != 'body') {
-			params.push(`yaw=float('nan')`);
+		frameId = buildFrameId(block);
+		let params = [`x=${x}`, `y=${y}`, `z=${z}`, `frame_id=${frameId}`, `speed=${speed}`];
+
+		if (wait) {
+			rosDefinitions.navigateWait = true;
+			simpleOffboard();
+
+			return `navigate_wait(${params.join(', ')})\n`;
+
+		} else {
+			if (frameId != 'body') {
+				params.push(`yaw=float('nan')`);
+			}
+			return `navigate(${params.join(', ')})\n`;
 		}
-		return `navigate(${params.join(', ')})\n`;
 	}
 }
 
@@ -315,6 +358,12 @@ Blockly.Python.get_attitude = function(block) {
 	return [code, Blockly.Python.ORDER_FUNCTION_CALL];
 }
 
+Blockly.Python.global_position = function(block) {
+	simpleOffboard();
+	var code = `get_telemetry().${block.getFieldValue('FIELD').toLowerCase()}`;
+	return [code, Blockly.Python.ORDER_FUNCTION_CALL];
+}
+
 Blockly.Python.distance = function(block) {
 	rosDefinitions.distance = true;
 	simpleOffboard();
@@ -415,7 +464,7 @@ Blockly.Python.led_count = function(block) {
 
 function pigpio() {
 	Blockly.Python.definitions_['import_pigpio'] = 'import pigpio';
-	Blockly.Python.definitions_['init_pigpio'] = 'pi = pigpio.pi()';
+	Blockly.Python.definitions_['init_pigpio'] = 'pi = pigpio.pi()\nif not pi.connected: raise Exception(\'Cannot connect to pigpiod\')';
 }
 
 const GPIO_READ = `\ndef gpio_read(pin):

clover_description/README.md

@@ -14,7 +14,7 @@ You may provide additional parameters for `spawn_drone.launch` as well:
 * `rangefinder` (*boolean*, default: *true*) - controls whether the drone will have a downward-facing laser rangefinder attached;
 * `led` (*boolean*, default: *true*) - controls whether the drone will have a programmable LED strip (requires plugins from `clover_simulation`);
 * `gps` (*boolean*, default: *true*) - controls whether the drone will have a simulated GPS attached (requires plugins from `sitl_gazebo`);
-* `maintain_camera_rate` (*boolean*, default: *false*) - slow down the simultion to maintain camera publishing rate (internally changes the camera plugin from `libgazebo_ros_camera.so` to `libthrottling_camera.so` from [`clover_simulation`](../clover_simulation/README.md#throttling-camera-plugin-throttling_camera)).
+* `maintain_camera_rate` (*boolean*, default: *false*) - slow down the simulation to maintain camera publishing rate (internally changes the camera plugin from `libgazebo_ros_camera.so` to `libthrottling_camera.so` from [`clover_simulation`](../clover_simulation/README.md#throttling-camera-plugin-throttling_camera)).
 
 For example, in order to spawn a drone without a GPS module, you may use the following command:
 

clover_description/launch/view_drone.launch

@@ -1,7 +1,7 @@
 <launch>
-  <arg name="model" default="$(find clover_description)/urdf/drones/clover4.xacro"/>
+  <arg name="model" default="$(find clover_description)/urdf/clover/clover4.xacro"/>
 
-  <param name="robot_description" command="$(find xacro)/xacro.py $(arg model)"/>
+  <param name="robot_description" command="xacro $(arg model)"/>
 
   <node name="rviz" pkg="rviz" type="rviz" required="true"/>
 </launch>

clover_description/urdf/clover/clover4.xacro

@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<robot name="clover_camera" xmlns:xacro="http://ros.org/wiki/xacro">
+<robot name="clover" xmlns:xacro="http://ros.org/wiki/xacro">
 
   <xacro:arg name="main_camera" default="true"/>
   <xacro:arg name="rangefinder" default="true"/>
@@ -8,10 +8,10 @@
   <xacro:arg name="maintain_camera_rate" default="false"/>
   <xacro:arg name="use_clover_physics" default="false"/>
 
-  <xacro:include filename="$(find clover_description)/urdf/clover/clover4_base.xacro" />
-  <xacro:include filename="$(find clover_description)/urdf/sensors/rpi_cam.urdf.xacro"/>
-  <xacro:include filename="$(find clover_description)/urdf/sensors/distance_sensor.urdf.xacro"/>
-  <xacro:include filename="$(find clover_description)/urdf/leds/led_strip.xacro"/>
+  <xacro:include filename="clover4_base.xacro" />
+  <xacro:include filename="../sensors/rpi_cam.urdf.xacro"/>
+  <xacro:include filename="../sensors/distance_sensor.urdf.xacro"/>
+  <xacro:include filename="../leds/led_strip.xacro"/>
 
   <!-- Create camera plugin -->
   <xacro:if value="$(arg main_camera)">
@@ -36,11 +36,17 @@
   </xacro:if>
 
   <xacro:if value="$(arg gps)">
-    <!-- Instantiate gps plugin. -->
-    <xacro:gps_plugin_macro
-      namespace="${namespace}"
-      gps_noise="true"
-      />
+    <gazebo>
+      <include>
+        <uri>model://gps</uri>
+        <pose>0.1 0 0 0 0 0</pose>
+        <name>gps0</name>
+      </include>
+      <joint name='gps0_joint' type='fixed'>
+        <child>gps0::link</child>
+        <parent>base_link</parent>
+      </joint>  
+    </gazebo>
   </xacro:if>
 
 </robot>

clover_description/urdf/clover/clover4_base.xacro

@@ -1,40 +1,15 @@
 <?xml version="1.0"?>
 
 <robot name="clover" xmlns:xacro="http://ros.org/wiki/xacro">
-  <!-- Properties that can be assigned at build time as arguments.
-  Is there a reason not to make all properties arguments?
-  -->
-  <xacro:arg name='name' default='iris' />
-  <xacro:arg name='mavlink_addr' default='INADDR_ANY' />
-  <xacro:arg name='mavlink_udp_port' default='14560' />
-  <xacro:arg name='mavlink_tcp_port' default='4560' />
-  <xacro:arg name='serial_enabled' default='false' />
-  <xacro:arg name='serial_device' default='/dev/ttyACM0' />
-  <xacro:arg name='baudrate' default='921600' />
-  <xacro:arg name='qgc_addr' default='INADDR_ANY' />
-  <xacro:arg name='qgc_udp_port' default='14550' />
-  <xacro:arg name='sdk_addr' default='INADDR_ANY' />
-  <xacro:arg name='sdk_udp_port' default='14540' />
-  <xacro:arg name='hil_mode' default='false' />
-  <xacro:arg name='hil_state_level' default='false' />
-  <xacro:arg name='send_vision_estimation' default='false' />
-  <xacro:arg name='send_odometry' default='false' />
-  <xacro:arg name='enable_lockstep' default='true' />
-  <xacro:arg name='use_tcp' default='true' />
-  <xacro:arg name='vehicle_is_tailsitter' default='false' />
-  <xacro:arg name='visual_material' default='DarkGrey' />
-  <xacro:arg name='enable_mavlink_interface' default='true' />
   <xacro:arg name='enable_wind' default='false' />
-  <!-- The following causes segfault with multiple vehicles if defaults to true!!! -->
-  <xacro:arg name='enable_ground_truth' default='false' />
   <xacro:arg name='enable_logging' default='false' />
-  <xacro:arg name='log_file' default='iris' />
+  <xacro:arg name='log_file' default='clover' />
 
   <!-- macros for gazebo plugins, sensors -->
-  <xacro:include filename="$(find clover_description)/urdf/component_snippets.urdf.xacro" />
+  <xacro:include filename="../component_snippets.urdf.xacro" />
 
   <!-- Instantiate iris "mechanics" -->
-  <xacro:include filename="$(find clover_description)/urdf/clover/clover4_physics.xacro" />
+  <xacro:include filename="clover4_physics.xacro" />
 
   <xacro:if value="$(arg enable_wind)">
     <xacro:wind_plugin_macro
@@ -49,126 +24,8 @@
         />
   </xacro:if>
 
-  <!-- Instantiate magnetometer plugin. -->
-  <xacro:magnetometer_plugin_macro
-    namespace="${namespace}"
-    pub_rate="20"
-    noise_density="0.0004"
-    random_walk="0.0000064"
-    bias_correlation_time="600"
-    mag_topic="/mag"
-    >
-  </xacro:magnetometer_plugin_macro>
-
-  <!-- Instantiate barometer plugin. -->
-  <xacro:barometer_plugin_macro
-    namespace="${namespace}"
-    pub_rate="10"
-    baro_topic="/baro"
-    >
-  </xacro:barometer_plugin_macro>
-
-  <xacro:if value="$(arg enable_mavlink_interface)">
-  <!-- Instantiate mavlink telemetry interface. -->
-  <xacro:mavlink_interface_macro
-    namespace="${namespace}"
-    imu_sub_topic="/imu"
-    gps_sub_topic="/gps"
-    mag_sub_topic="/mag"
-    baro_sub_topic="/baro"
-    mavlink_addr="$(arg mavlink_addr)"
-    mavlink_udp_port="$(arg mavlink_udp_port)"
-    mavlink_tcp_port="$(arg mavlink_tcp_port)"
-    serial_enabled="$(arg serial_enabled)"
-    serial_device="$(arg serial_device)"
-    baudrate="$(arg baudrate)"
-    qgc_addr="$(arg qgc_addr)"
-    qgc_udp_port="$(arg qgc_udp_port)"
-    sdk_addr="$(arg sdk_addr)"
-    sdk_udp_port="$(arg sdk_udp_port)"
-    hil_mode="$(arg hil_mode)"
-    hil_state_level="$(arg hil_state_level)"
-    vehicle_is_tailsitter="$(arg vehicle_is_tailsitter)"
-    send_vision_estimation="$(arg send_vision_estimation)"
-    send_odometry="$(arg send_odometry)"
-    enable_lockstep="$(arg enable_lockstep)"
-    use_tcp="$(arg use_tcp)"
-    >
-  </xacro:mavlink_interface_macro>
-  </xacro:if>
-
-  <!-- Mount an ADIS16448 IMU. -->
-  <xacro:imu_plugin_macro
-    namespace="${namespace}"
-    imu_suffix=""
-    parent_link="base_link"
-    imu_topic="/imu"
-    mass_imu_sensor="0.015"
-    gyroscope_noise_density="0.0003394"
-    gyroscopoe_random_walk="0.000038785"
-    gyroscope_bias_correlation_time="1000.0"
-    gyroscope_turn_on_bias_sigma="0.0087"
-    accelerometer_noise_density="0.004"
-    accelerometer_random_walk="0.006"
-    accelerometer_bias_correlation_time="300.0"
-    accelerometer_turn_on_bias_sigma="0.1960"
-  >
-    <inertia ixx="0.00001" ixy="0.0" ixz="0.0" iyy="0.00001" iyz="0.0" izz="0.00001" />
-    <origin xyz="0 0 0" rpy="0 0 0" />
-  </xacro:imu_plugin_macro>
-
-  <xacro:if value="$(arg enable_ground_truth)">
-    <!-- Mount an IMU providing ground truth. -->
-    <xacro:imu_plugin_macro
-      namespace="${namespace}"
-      imu_suffix="gt"
-      parent_link="base_link"
-      imu_topic="ground_truth/imu"
-      mass_imu_sensor="0.00001"
-      gyroscope_noise_density="0.0"
-      gyroscopoe_random_walk="0.0"
-      gyroscope_bias_correlation_time="1000.0"
-      gyroscope_turn_on_bias_sigma="0.0"
-      accelerometer_noise_density="0.0"
-      accelerometer_random_walk="0.0"
-      accelerometer_bias_correlation_time="300.0"
-      accelerometer_turn_on_bias_sigma="0.0"
-    >
-      <inertia ixx="0.00001" ixy="0.0" ixz="0.0" iyy="0.00001" iyz="0.0" izz="0.00001" />
-      <origin xyz="0 0 0" rpy="0 0 0" />
-    </xacro:imu_plugin_macro>
-
-    <!-- Mount a generic odometry sensor providing ground truth. -->
-    <xacro:odometry_plugin_macro
-      namespace="${namespace}/ground_truth"
-      odometry_sensor_suffix="gt"
-      parent_link="base_link"
-      pose_topic="pose"
-      pose_with_covariance_topic="pose_with_covariance"
-      position_topic="position"
-      transform_topic="transform"
-      odometry_topic="odometry"
-      parent_frame_id="world"
-      mass_odometry_sensor="0.00001"
-      measurement_divisor="1"
-      measurement_delay="0"
-      unknown_delay="0.0"
-      noise_normal_position="0 0 0"
-      noise_normal_quaternion="0 0 0"
-      noise_normal_linear_velocity="0 0 0"
-      noise_normal_angular_velocity="0 0 0"
-      noise_uniform_position="0 0 0"
-      noise_uniform_quaternion="0 0 0"
-      noise_uniform_linear_velocity="0 0 0"
-      noise_uniform_angular_velocity="0 0 0"
-      enable_odometry_map="false"
-      odometry_map=""
-      image_scale=""
-    >
-      <inertia ixx="0.00001" ixy="0.0" ixz="0.0" iyy="0.00001" iyz="0.0" izz="0.00001" /> <!-- [kg.m^2] [kg.m^2] [kg.m^2] [kg.m^2] [kg.m^2] [kg.m^2] -->
-      <origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
-    </xacro:odometry_plugin_macro>
-  </xacro:if>
+  <!-- Gazebo plugins -->
+  <xacro:include filename="$(find clover_description)/urdf/clover/clover4_gazebo.xacro" />
 
   <xacro:if value="$(arg enable_logging)">
     <!-- Instantiate a logger -->

clover_description/urdf/clover/clover4_gazebo.xacro

@@ -0,0 +1,183 @@
+<?xml version="1.0"?>
+
+<!-- Reference: https://github.com/PX4/PX4-SITL_gazebo/blob/7505aee97d2d3112fb2bd95198946345c6fa0b07/models/iris/iris.sdf.jinja#L430 -->
+
+<robot xmlns:xacro="http://ros.org/wiki/xacro">
+
+  <!-- IMU link -->
+  <link name="/imu_link">
+    <inertial>
+      <inertia ixx="0.00001" ixy="0.0" ixz="0.0" iyy="0.00001" iyz="0.0" izz="0.00001"/>
+      <mass value="0.015"/>
+      <!-- [kg] -->
+      <origin rpy="0 0 0" xyz="0 0 0"/>
+    </inertial>
+  </link>
+
+  <!-- IMU joint -->
+  <joint name="/imu_joint" type="fixed">
+    <origin rpy="0 0 0" xyz="0 0 0"/>
+    <parent link="base_link"/>
+    <child link="/imu_link"/>
+    <!-- <limit upper="0" lower="0" effort="0" velocity="0" /> -->
+  </joint>
+
+  <gazebo reference="/imu_joint">
+    <disableFixedJointLumping>true</disableFixedJointLumping>
+    <preserveFixedJoint>true</preserveFixedJoint>
+  </gazebo>
+
+  <gazebo>
+    <plugin name='groundtruth_plugin' filename='libgazebo_groundtruth_plugin.so'>
+      <robotNamespace/>
+    </plugin>
+    <plugin name='magnetometer_plugin' filename='libgazebo_magnetometer_plugin.so'>
+      <robotNamespace/>
+      <pubRate>100</pubRate>
+      <noiseDensity>0.0004</noiseDensity>
+      <randomWalk>6.4e-06</randomWalk>
+      <biasCorrelationTime>600</biasCorrelationTime>
+      <magTopic>/mag</magTopic>
+    </plugin>
+    <plugin name='barometer_plugin' filename='libgazebo_barometer_plugin.so'>
+      <robotNamespace/>
+      <pubRate>50</pubRate>
+      <baroTopic>/baro</baroTopic>
+      <baroDriftPaPerSec>0</baroDriftPaPerSec>
+    </plugin>
+    <plugin name='mavlink_interface' filename='libgazebo_mavlink_interface.so'>
+      <robotNamespace/>
+      <imuSubTopic>/imu</imuSubTopic>
+      <magSubTopic>/mag</magSubTopic>
+      <baroSubTopic>/baro</baroSubTopic>
+      <mavlink_addr>INADDR_ANY</mavlink_addr>
+      <mavlink_tcp_port>4560</mavlink_tcp_port>
+      <mavlink_udp_port>14560</mavlink_udp_port>
+      <serialEnabled>false</serialEnabled>
+      <serialDevice>/dev/ttyACM0</serialDevice>
+      <baudRate>921600</baudRate>
+      <qgc_addr>INADDR_ANY</qgc_addr>
+      <qgc_udp_port>14550</qgc_udp_port>
+      <sdk_addr>INADDR_ANY</sdk_addr>
+      <sdk_udp_port>14540</sdk_udp_port>
+      <hil_mode>false</hil_mode>
+      <hil_state_level>0</hil_state_level>
+      <send_vision_estimation>0</send_vision_estimation>
+      <send_odometry>1</send_odometry>
+      <enable_lockstep>1</enable_lockstep>
+      <use_tcp>1</use_tcp>
+      <motorSpeedCommandPubTopic>/gazebo/command/motor_speed</motorSpeedCommandPubTopic>
+      <control_channels>
+        <channel name='rotor1'>
+          <input_index>0</input_index>
+          <input_offset>0</input_offset>
+          <input_scaling>1000</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>100</zero_position_armed>
+          <joint_control_type>velocity</joint_control_type>
+        </channel>
+        <channel name='rotor2'>
+          <input_index>1</input_index>
+          <input_offset>0</input_offset>
+          <input_scaling>1000</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>100</zero_position_armed>
+          <joint_control_type>velocity</joint_control_type>
+        </channel>
+        <channel name='rotor3'>
+          <input_index>2</input_index>
+          <input_offset>0</input_offset>
+          <input_scaling>1000</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>100</zero_position_armed>
+          <joint_control_type>velocity</joint_control_type>
+        </channel>
+        <channel name='rotor4'>
+          <input_index>3</input_index>
+          <input_offset>0</input_offset>
+          <input_scaling>1000</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>100</zero_position_armed>
+          <joint_control_type>velocity</joint_control_type>
+        </channel>
+        <channel name='rotor5'>
+          <input_index>4</input_index>
+          <input_offset>1</input_offset>
+          <input_scaling>324.6</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>0</zero_position_armed>
+          <joint_control_type>velocity</joint_control_type>
+          <joint_control_pid>
+            <p>0.1</p>
+            <i>0</i>
+            <d>0</d>
+            <iMax>0.0</iMax>
+            <iMin>0.0</iMin>
+            <cmdMax>2</cmdMax>
+            <cmdMin>-2</cmdMin>
+          </joint_control_pid>
+          <joint_name>zephyr_delta_wing::propeller_joint</joint_name>
+        </channel>
+        <channel name='rotor6'>
+          <input_index>5</input_index>
+          <input_offset>0</input_offset>
+          <input_scaling>0.524</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>0</zero_position_armed>
+          <joint_control_type>position</joint_control_type>
+          <joint_name>zephyr_delta_wing::flap_left_joint</joint_name>
+          <joint_control_pid>
+            <p>10.0</p>
+            <i>0</i>
+            <d>0</d>
+            <iMax>0</iMax>
+            <iMin>0</iMin>
+            <cmdMax>20</cmdMax>
+            <cmdMin>-20</cmdMin>
+          </joint_control_pid>
+        </channel>
+        <channel name='rotor7'>
+          <input_index>6</input_index>
+          <input_offset>0</input_offset>
+          <input_scaling>0.524</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>0</zero_position_armed>
+          <joint_control_type>position</joint_control_type>
+          <joint_name>zephyr_delta_wing::flap_right_joint</joint_name>
+          <joint_control_pid>
+            <p>10.0</p>
+            <i>0</i>
+            <d>0</d>
+            <iMax>0</iMax>
+            <iMin>0</iMin>
+            <cmdMax>20</cmdMax>
+            <cmdMin>-20</cmdMin>
+          </joint_control_pid>
+        </channel>
+        <channel name='rotor8'>
+          <input_index>7</input_index>
+          <input_offset>0</input_offset>
+          <input_scaling>0.524</input_scaling>
+          <zero_position_disarmed>0</zero_position_disarmed>
+          <zero_position_armed>0</zero_position_armed>
+          <joint_control_type>position</joint_control_type>
+        </channel>
+      </control_channels>
+    </plugin>
+    <static>0</static>
+    <plugin name='rotors_gazebo_imu_plugin' filename='libgazebo_imu_plugin.so'>
+      <robotNamespace/>
+      <linkName>/imu_link</linkName>
+      <imuTopic>/imu</imuTopic>
+      <gyroscopeNoiseDensity>0.00018665</gyroscopeNoiseDensity>
+      <gyroscopeRandomWalk>3.8785e-05</gyroscopeRandomWalk>
+      <gyroscopeBiasCorrelationTime>1000.0</gyroscopeBiasCorrelationTime>
+      <gyroscopeTurnOnBiasSigma>0.0087</gyroscopeTurnOnBiasSigma>
+      <accelerometerNoiseDensity>0.00186</accelerometerNoiseDensity>
+      <accelerometerRandomWalk>0.006</accelerometerRandomWalk>
+      <accelerometerBiasCorrelationTime>300.0</accelerometerBiasCorrelationTime>
+      <accelerometerTurnOnBiasSigma>0.196</accelerometerTurnOnBiasSigma>
+    </plugin>
+  </gazebo>
+
+</robot>

clover_description/urdf/clover/clover4_physics.xacro

@@ -6,7 +6,7 @@
 
 -->
 
-<robot name="iris" xmlns:xacro="http://ros.org/wiki/xacro">
+<robot name="clover" xmlns:xacro="http://ros.org/wiki/xacro">
   <!-- Properties -->
   <xacro:property name="namespace" value="" />
   <xacro:property name="rotor_velocity_slowdown_sim" value="10" />
@@ -84,7 +84,7 @@
   </xacro:unless>
 
   <!-- Included URDF Files -->
-  <xacro:include filename="$(find clover_description)/urdf/clover/clover4_macros.xacro" />
+  <xacro:include filename="clover4_macros.xacro" />
 
   <!-- Instantiate multirotor_base_macro once -->
   <xacro:clover4_base_macro

clover_description/urdf/sensors/distance_sensor.urdf.xacro

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <robot name="rpi_camera" xmlns:xacro="http://ros.org/wiki/xacro">
-  <xacro:include filename="$(find clover_description)/urdf/camera_sensor.urdf.xacro"/>
+  <xacro:include filename="../camera_sensor.urdf.xacro"/>
 
   <xacro:macro name="distance_sensor" params="name:=lidar_vl53l1x parent x:=0 y:=0 z:=0 roll:=0 pitch:=0 yaw:=0 range_min:=0.01 range_max:=4.0 resolution:=0.01 rate:=10">
     <joint name="${name}_joint" type="fixed">

clover_description/urdf/sensors/pinhole_camera.urdf.xacro

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <robot name="pinhole_camera" xmlns:xacro="http://ros.org/wiki/xacro">
-  <xacro:include filename="$(find clover_description)/urdf/camera_sensor.urdf.xacro"/>
+  <xacro:include filename="../camera_sensor.urdf.xacro"/>
   <xacro:camera_sensor name="main_camera" width="640" height="480" rate="30" horizontal_fov="${120.0*pi/180.0}"/>
 </robot>

clover_description/urdf/sensors/rpi_cam.urdf.xacro

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <robot name="rpi_camera" xmlns:xacro="http://ros.org/wiki/xacro">
-  <xacro:include filename="$(find clover_description)/urdf/camera_sensor.urdf.xacro"/>
+  <xacro:include filename="../camera_sensor.urdf.xacro"/>
 
   <xacro:macro name="rpi_cam" params="name:=rpi_cam parent x:=0 y:=0 z:=0 roll:=0 pitch:=0 yaw:=0 width:=320 height:=240 rate:=40 do_throttling:=false">
     <joint name="${name}_joint" type="fixed">

clover_simulation/CMakeLists.txt

@@ -52,7 +52,7 @@ target_compile_options(throttling_camera PRIVATE -std=c++11)
 add_dependencies(throttling_camera ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})
 
 install(DIRECTORY launch DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
-install(DIRECTORY meshes DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
+install(DIRECTORY models DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
 install(DIRECTORY resources DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION})
 
 catkin_install_python(PROGRAMS scripts/aruco_gen

clover_simulation/README.md

@@ -55,7 +55,7 @@ A visual Gazebo plugin is used for the LED strip. An example of the plugin usage
 The plugin accepts the following parameters during instantiation:
 
 * `robotNamespace` (*string*, default: "") - a ROS namespace for the plugin;
-* `ledCount` (*integer*, required) - total numer of LEDs in a strip.
+* `ledCount` (*integer*, required) - total number of LEDs in a strip.
 
 The plugin will provide the following service:
 

clover_simulation/airframes/4500_clover

@@ -0,0 +1,36 @@
+#!/bin/sh
+#
+# @name COEX Clover Simulator
+#
+# @type Quadrotor X
+#
+
+. ${R}etc/init.d-posix/airframes/10016_iris # base on iris
+
+param set ATT_W_EXT_HDG 0.5
+param set ATT_EXT_HDG_M 1
+
+param set COM_DISARM_LAND 1.0
+
+param set LPE_FLW_SCALE 1.0
+param set LPE_FLW_R 0.2
+param set LPE_FLW_RR 0.0
+param set LPE_FLW_QMIN 10
+param set LPE_VIS_DELAY 0.0
+param set LPE_VIS_Z 0.1
+param set LPE_FUSION 86
+
+param set SENS_FLOW_ROT 0
+param set SENS_FLOW_MINHGT 0.01
+param set SENS_FLOW_MAXHGT 4.0
+param set SENS_FLOW_MAXR 10.0
+
+param set EKF2_AID_MASK 27 # gps + flow + vis pos + vis yaw
+param set EKF2_OF_DELAY 0
+param set EKF2_OF_QMIN 10
+param set EKF2_OF_N_MIN 0.05
+param set EKF2_OF_N_MAX 0.2
+param set EKF2_HGT_MODE 2
+param set EKF2_EVA_NOISE 0.1
+param set EKF2_EVP_NOISE 0.1
+param set EKF2_EV_DELAY 0

clover_simulation/launch/simulator.launch

@@ -4,16 +4,18 @@
     <arg name="est" default="ekf2"/> <!-- PX4 estimator: lpe, ekf2 -->
     <arg name="vehicle" default="clover"/> <!-- PX4 vehicle configuration: clover, clover_vpe -->
     <arg name="main_camera" default="true"/> <!-- Simulated vision position estimation camera (optical flow, ArUco) -->
+    <arg name="maintain_camera_rate" default="false"/> <!-- Slow simulation down to maintain camera rate -->
     <arg name="rangefinder" default="true"/> <!-- Simulated downward-facing rangefinder, vl53l1x-like -->
     <arg name="led" default="true"/> <!-- Simulated LED strip, ws281x-like -->
     <arg name="gps" default="false"/> <!--Simulated GPS module -->
     <arg name="use_clover_physics" default="false"/> <!-- Use inertial parameters from CAD models -->
+    <arg name="gui" default="true"/> <!-- Run Gazebo with GUI -->
 
     <!-- Gazebo instance -->
     <include file="$(find gazebo_ros)/launch/empty_world.launch" if="$(eval type == 'gazebo')">
         <!-- Workaround for crashes in VMware -->
         <env name="SVGA_VGPU10" value="0"/>
-        <arg name="gui" value="true"/>
+        <arg name="gui" value="$(arg gui)"/>
         <arg name="world_name" value="$(find clover_simulation)/resources/worlds/clover_aruco.world"/>
         <arg name="verbose" value="true"/>
     </include>
@@ -27,13 +29,16 @@
     <!-- Clover model -->
     <include file="$(find clover_description)/launch/spawn_drone.launch" if="$(eval type == 'gazebo')">
         <arg name="main_camera" value="$(arg main_camera)"/>
+        <arg name="maintain_camera_rate" value="$(arg maintain_camera_rate)"/>
         <arg name="rangefinder" value="$(arg rangefinder)"/>
         <arg name="led" value="$(arg led)"/>
         <arg name="gps" value="$(arg gps)"/>
         <arg name="use_clover_physics" value="$(arg use_clover_physics)"/>
     </include>
 
-    <node name="jmavsim" pkg="px4" type="jmavsim_run.sh" output="screen" if="$(eval type == 'jmavsim')"/>
+    <node name="jmavsim" pkg="px4" type="jmavsim_run.sh" output="screen" if="$(eval type == 'jmavsim')">
+        <env name="HEADLESS" value="1" if="$(eval not gui)"/>
+    </node>
 
     <param name="use_sim_time" value="false" if="$(eval type == 'jmavsim')"/>
 
@@ -43,10 +48,10 @@
         <arg name="fcu_conn" value="sitl"/>
         <arg name="fcu_ip" value="127.0.0.1"/>
         <arg name="gcs_bridge" value=""/>
-        <arg name="rc" default="false"/>
         <arg name="web_video_server" default="false" if="$(eval type == 'jmavsim')"/>
         <arg name="main_camera" default="false" if="$(eval type == 'jmavsim')"/>
         <arg name="aruco" default="false" if="$(eval type == 'jmavsim')"/>
+        <arg name="optical_flow" default="false" if="$(eval type == 'jmavsim')"/>
         <arg name="led" default="false" if="$(eval type == 'jmavsim')"/>
     </include>
 </launch>

clover_simulation/models/aruco_100/marker_100.sdf

@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<sdf version="1.5">
+    <model name="aruco_100">
+        <static>true</static>
+        <link name="marker_100_link">
+            <pose>0 0 1e-3 0 0 1.5707963267948966</pose>
+            <visual name="visual_marker_100">
+                <cast_shadows>false</cast_shadows>
+                <geometry>
+                    <box>
+                        <size>0.22 0.22 1e-3</size>
+                    </box>
+                </geometry>
+                <material>
+                    <script>
+                        <uri>model://aruco_100/materials/scripts</uri>
+                        <uri>model://aruco_100/materials/textures</uri>
+                        <name>aruco/marker_100</name>
+                    </script>
+                </material>
+            </visual>
+        </link>
+    </model>
+</sdf>

clover_simulation/models/aruco_100/materials/scripts/aruco_100.material

@@ -0,0 +1,15 @@
+material aruco/marker_100
+{
+    technique
+    {
+        pass
+        {
+            texture_unit
+            {
+                texture aruco_marker_100.png
+                filtering none
+                scale 1.0 1.0
+            }
+        }
+    }
+}

clover_simulation/models/aruco_100/model.config

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<model>
+    <name>ArUco Marker 100</name>
+    <version>1.0</version>
+    <sdf version="1.5">marker_100.sdf</sdf>
+    <author>
+        <name>Marker Generator script</name>
+        <email>marker@generator.sh</email>
+    </author>
+    <description>
+        ArUco marker #100
+    </description>
+</model>

clover_simulation/models/aruco_101/marker_101.sdf

@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<sdf version="1.5">
+    <model name="aruco_101">
+        <static>true</static>
+        <link name="marker_101_link">
+            <pose>0 0 1e-3 0 0 1.5707963267948966</pose>
+            <visual name="visual_marker_101">
+                <cast_shadows>false</cast_shadows>
+                <geometry>
+                    <box>
+                        <size>0.44 0.44 1e-3</size>
+                    </box>
+                </geometry>
+                <material>
+                    <script>
+                        <uri>model://aruco_101/materials/scripts</uri>
+                        <uri>model://aruco_101/materials/textures</uri>
+                        <name>aruco/marker_101</name>
+                    </script>
+                </material>
+            </visual>
+        </link>
+    </model>
+</sdf>

clover_simulation/models/aruco_101/materials/scripts/aruco_101.material

@@ -0,0 +1,15 @@
+material aruco/marker_101
+{
+    technique
+    {
+        pass
+        {
+            texture_unit
+            {
+                texture aruco_marker_101.png
+                filtering none
+                scale 1.0 1.0
+            }
+        }
+    }
+}

clover_simulation/models/aruco_101/model.config

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<model>
+    <name>ArUco Marker 101</name>
+    <version>1.0</version>
+    <sdf version="1.5">marker_101.sdf</sdf>
+    <author>
+        <name>Marker Generator script</name>
+        <email>marker@generator.sh</email>
+    </author>
+    <description>
+        ArUco marker #101
+    </description>
+</model>

clover_simulation/models/aruco_102/marker_102.sdf

@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<sdf version="1.5">
+    <model name="aruco_102">
+        <static>true</static>
+        <link name="marker_102_link">
+            <pose>0 0 1e-3 0 0 1.5707963267948966</pose>
+            <visual name="visual_marker_102">
+                <cast_shadows>false</cast_shadows>
+                <geometry>
+                    <box>
+                        <size>0.44 0.44 1e-3</size>
+                    </box>
+                </geometry>
+                <material>
+                    <script>
+                        <uri>model://aruco_102/materials/scripts</uri>
+                        <uri>model://aruco_102/materials/textures</uri>
+                        <name>aruco/marker_102</name>
+                    </script>
+                </material>
+            </visual>
+        </link>
+    </model>
+</sdf>

clover_simulation/models/aruco_102/materials/scripts/aruco_102.material

@@ -0,0 +1,15 @@
+material aruco/marker_102
+{
+    technique
+    {
+        pass
+        {
+            texture_unit
+            {
+                texture aruco_marker_102.png
+                filtering none
+                scale 1.0 1.0
+            }
+        }
+    }
+}

clover_simulation/models/aruco_102/model.config

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<model>
+    <name>ArUco Marker 102</name>
+    <version>1.0</version>
+    <sdf version="1.5">marker_102.sdf</sdf>
+    <author>
+        <name>Marker Generator script</name>
+        <email>marker@generator.sh</email>
+    </author>
+    <description>
+        ArUco marker #102
+    </description>
+</model>

clover_simulation/models/camera/camera.sdf

@@ -0,0 +1,33 @@
+<?xml version="1.0"?>
+<sdf version="1.5">
+    <model name="camera">
+        <static>true</static>
+        <link name='camera_link'>
+            <pose>0 0 0 0 0 0</pose>
+            <sensor name='camera' type='camera'>
+                <camera>
+                    <horizontal_fov>1.8</horizontal_fov>
+                    <image>
+                        <format>B8G8R8</format>
+                        <width>640</width>
+                        <height>480</height>
+                    </image>
+                    <clip>
+                        <near>0.02</near>
+                        <far>300</far>
+                    </clip>
+                </camera>
+                <always_on>1</always_on>
+                <update_rate>30</update_rate>
+                <visualize>1</visualize>
+                <plugin name='camera_plugin' filename='libgazebo_ros_camera.so'>
+                    <alwaysOn>1</alwaysOn>
+                    <imageTopicName>image_raw</imageTopicName>
+                    <cameraTopicName>camera_info</cameraTopicName>
+                    <cameraName>camera</cameraName>
+                    <frameName>/camera</frameName>
+                </plugin>
+            </sensor>
+        </link>
+    </model>
+</sdf>

clover_simulation/models/camera/model.config

@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<model>
+    <name>Camera</name>
+    <version>1.0</version>
+    <sdf version="1.5">camera.sdf</sdf>
+    <author>
+        <name>Oleg Kalachev</name>
+        <email>okalachev@gmail.com</email>
+    </author>
+    <description>
+        External camera
+    </description>
+</model>

clover_simulation/scripts/gzweb

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+# script for running gzweb
+# usage: ./gzweb [<port>]
+
+export NVM_DIR=$HOME/.nvm
+source $NVM_DIR/nvm.sh
+npm start --prefix $HOME/gzweb -p ${1-8080}

clover_simulation/src/clover_simulation/world.py

@@ -41,4 +41,4 @@ def save_world(world, file):
     '''
     Save the world to file-like object
     '''
-    return world.write(file)
+    return world.write(file, encoding='unicode')

docs/assets/copterhack2022.svg

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 23.0.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Слой_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 566.93 226.77" style="enable-background:new 0 0 566.93 226.77;" xml:space="preserve">
+<style type="text/css">
+	.st0{fill:#3679BC;}
+	.st1{fill:#27B4AA;}
+</style>
+<g>
+	<polygon class="st0" points="356.5,37.35 287.97,37.35 287.97,56.03 312.9,56.03 312.9,105.92 331.58,105.92 331.58,56.03 
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