Add Gazebo simulator to image

For cases when optical flow is dynamically disabled and enabled back

.github/workflows/build.yml

@@ -16,8 +16,24 @@ jobs:
   #         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
+    container: ros:noetic-ros-base
+    defaults:
+      run:
+        working-directory: catkin_ws
+        shell: bash
     steps:
-      - uses: actions/checkout@v2
-      - name: Native Noetic build
-        run: |
-          docker run --rm -v $(pwd):/root/catkin_ws/src/clover ros:noetic-ros-base /root/catkin_ws/src/clover/builder/standalone-install.sh
+    - uses: actions/checkout@v2
+      with:
+        path: catkin_ws/src/clover
+    - name: Install pip
+      run: apt-get update && apt-get -y install python3-pip
+    - name: Install dependencies
+      run: rosdep update && rosdep install --from-paths src --ignore-src -y
+    - name: Install GeographicLib datasets
+      run: wget -qO- https://raw.githubusercontent.com/mavlink/mavros/master/mavros/scripts/install_geographiclib_datasets.sh | bash
+    - name: catkin_make
+      run: source /opt/ros/$ROS_DISTRO/setup.bash && catkin_make
+    - name: Run tests
+      run: source devel/setup.bash && catkin_make run_tests && catkin_test_results
+    - name: Install
+      run: source devel/setup.bash && catkin_make install

aruco_pose/CMakeLists.txt

@@ -251,4 +251,5 @@ if (CATKIN_ENABLE_TESTING)
   add_rostest(test/test_node_failure.test)
   add_rostest(test/largemap.test)
   add_rostest(test/crash_opencv.test)
+  add_rostest(test/duplicate.test)
 endif()

aruco_pose/src/aruco_detect.cpp

@@ -187,6 +187,8 @@ private:
 
 			array_.markers.reserve(ids.size());
 			aruco_pose::Marker marker;
+			vector<geometry_msgs::TransformStamped> transforms;
+			transforms.reserve(ids.size());
 			geometry_msgs::TransformStamped transform;
 			transform.header.stamp = msg->header.stamp;
 			transform.header.frame_id = msg->header.frame_id;
@@ -204,20 +206,33 @@ private:
 						snapOrientation(marker.pose.orientation, snap_to.transform.rotation, auto_flip_);
 					}
 
-					// TODO: check IDs are unique
 					if (send_tf_) {
 						transform.child_frame_id = getChildFrameId(ids[i]);
 
 						// check if such static transform is in the map
 						if (map_markers_ids_.find(ids[i]) == map_markers_ids_.end()) {
-							transform.transform.rotation = marker.pose.orientation;
-							fillTranslation(transform.transform.translation, tvecs[i]);
-							br_->sendTransform(transform);
+							// check if a markers with that id is already added
+							bool send = true;
+							for (auto &t : transforms) {
+								if (t.child_frame_id == transform.child_frame_id) {
+									send = false;
+									break;
+								}
+							}
+							if (send) {
+								transform.transform.rotation = marker.pose.orientation;
+								fillTranslation(transform.transform.translation, tvecs[i]);
+								transforms.push_back(transform);
+							}
 						}
 					}
 				}
 				array_.markers.push_back(marker);
 			}
+
+			if (send_tf_) {
+				br_->sendTransform(transforms);
+			}
 		}
 
 		markers_pub_.publish(array_);

aruco_pose/test/duplicate.py

@@ -0,0 +1,8 @@
+import pytest
+import subprocess
+
+def test_no_tf_repeated_data():
+    # `/rosout` acts weirdly inside rostest, so using a subprocess
+    cmd = """python -c 'import rospy, tf; rospy.init_node("foo"); listener = tf.TransformListener(); rospy.sleep(2)'"""
+    output = str(subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT))
+    assert 'TF_REPEATED_DATA' not in output, 'TF_REPEATED_DATA was logged on duplicate markers'

aruco_pose/test/duplicate.test

@@ -0,0 +1,21 @@
+<launch>
+    <node pkg="image_publisher" type="image_publisher" name="main_camera" args="$(find aruco_pose)/test/duplicate.png">
+        <param name="frame_id" value="main_camera_optical"/>
+        <param name="publish_rate" value="10"/>
+        <param name="camera_info_url" value="file://$(find aruco_pose)/test/camera_info.yaml" />
+    </node>
+
+    <node pkg="nodelet" type="nodelet" name="nodelet_manager" args="manager" required="true"/>
+
+    <node pkg="nodelet" clear_params="true" type="nodelet" name="aruco_detect" args="load aruco_pose/aruco_detect nodelet_manager" required="true">
+        <remap from="image_raw" to="main_camera/image_raw"/>
+        <remap from="camera_info" to="main_camera/camera_info"/>
+        <param name="length" value="0.33"/>
+        <param name="estimate_poses" value="true"/>
+        <param name="send_tf" value="true"/>
+        <param name="cornerRefinementMethod" value="1"/>
+    </node>
+
+	<param name="test_module" value="$(find aruco_pose)/test/duplicate.py"/>
+    <test test-name="aruco_pose_test" pkg="ros_pytest" type="ros_pytest_runner"/>
+</launch>

builder/image-build.sh

@@ -120,6 +120,7 @@ ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/launch.
 # ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} copy ${SCRIPTS_DIR}'/assets/kinetic-ros-clover.rosinstall' '/home/pi/ros_catkin_ws/'
 # 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-simulator.sh'
 ${BUILDER_DIR}/image-chroot.sh ${IMAGE_PATH} exec ${SCRIPTS_DIR}'/image-validate.sh'
 
 ${BUILDER_DIR}/image-resize.sh ${IMAGE_PATH}

builder/image-simulator.sh

@@ -0,0 +1,42 @@
+#! /usr/bin/env bash
+
+#
+# Script for build the image. Used builder script of the target repo
+# For build: docker run --privileged -it --rm -v /dev:/dev -v $(pwd):/builder/repo smirart/builder
+#
+# Copyright (C) 2018 Copter Express Technologies
+#
+# Author: Artem Smirnov <urpylka@gmail.com>
+#
+# Distributed under MIT License (available at https://opensource.org/licenses/MIT).
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+
+set -ex # exit on error, echo commands
+
+echo "--- Downloading PX4"
+cd /home/pi/catkin_ws/
+git clone --recursive --depth 1 --branch v1.13.0 https://github.com/PX4/PX4-Autopilot.git /home/pi/PX4-Autopilot
+ln -s /home/pi/PX4-Autopilot /home/pi/catkin_ws/src/
+ln -s /home/pi/PX4-Autopilot/Tools/sitl_gazebo /home/pi/catkin_ws/src/
+
+echo "--- Installing PX4 dependencies"
+echo "progress=dot:giga" > /home/pi/.wgetrc # make wget don't spam to log
+apt-get install --no-install-recommends -y gazebo11
+/home/pi/PX4-Autopilot/Tools/setup/ubuntu.sh --no-nuttx
+rm /home/pi/.wgetrc
+pip3 install --user toml
+
+echo "--- Patching mavlink_sitl_gazebo"
+# See https://github.com/PX4/PX4-SITL_gazebo/pull/872
+cd /home/pi/PX4-Autopilot/Tools/sitl_gazebo
+patch -p1 < /tmp/patches/sitl_gazebo.patch
+
+echo "--- Build mavlink"
+cd /home/pi/catkin_ws
+catkin_make mavlink_c_generate -DCATKIN_WHITELIST_PACKAGES="px4"  # at first build PX4's mavlink to enforce mavlink_sitl_gazebo using it
+ln -s "." build/mavlink/mavlink  # fix https://github.com/PX4/PX4-Autopilot/pull/19964
+
+echo "--- Building the workspace"
+catkin_make -DCATKIN_WHITELIST_PACKAGES=""

clover/launch/clover.launch

@@ -12,7 +12,7 @@
     <arg name="led" default="true"/>
     <arg name="blocks" default="false"/>
     <arg name="rc" default="false"/>
-    <arg name="force_init" value="true"/> <!-- force estimator to init by publishing zero pose -->
+    <arg name="force_init" default="true"/> <!-- force estimator to init by publishing zero pose -->
 
     <arg name="simulator" default="false"/> <!-- flag that we are operating on a simulated drone -->
 

clover/launch/mavros.launch

@@ -1,5 +1,5 @@
 <launch>
-    <arg name="fcu_conn" default="usb"/> <!-- options: usb, uart, tcp, udp, sitl -->
+    <arg name="fcu_conn" default="usb"/> <!-- options: usb, uart, tcp, udp, sitl, hitl -->
     <arg name="fcu_ip" default="127.0.0.1"/>
     <arg name="fcu_sys_id" default="1"/>
     <arg name="gcs_bridge" default="tcp"/>
@@ -23,6 +23,9 @@
         <!-- sitl since PX4 1.9.0 -->
         <param name="fcu_url" value="udp://@$(arg fcu_ip):14580" if="$(eval fcu_conn == 'sitl')"/>
 
+        <!-- hitl connection (to gazebo_mavlink_interface plugin) -->
+        <param name="fcu_url" value="udp://$(arg fcu_ip):14540@" if="$(eval fcu_conn == 'hitl')"/>
+
         <!-- set target_system_id -->
         <param name="target_system_id" value="$(arg fcu_sys_id)" />
 

clover/package.xml

@@ -37,6 +37,8 @@
   <depend>rosbridge_server</depend>
   <depend>web_video_server</depend>
   <depend>tf2_web_republisher</depend>
+  <depend>libxml2</depend>
+  <depend>libxslt</depend>
   <depend condition="$ROS_PYTHON_VERSION == 2">python-lxml</depend>
   <depend condition="$ROS_PYTHON_VERSION == 3">python3-lxml</depend>
   <depend>dynamic_reconfigure</depend>

clover/src/optical_flow.cpp

@@ -154,7 +154,7 @@ private:
 
 		img.convertTo(curr_, CV_32F);
 
-		if (prev_.empty()) {
+		if (prev_.empty() || (msg->header.stamp - prev_stamp_).toSec() > 0.1) { // outdated previous frame
 			prev_ = curr_.clone();
 			prev_stamp_ = msg->header.stamp;
 			cv::createHanningWindow(hann_, curr_.size(), CV_32F);

clover/src/selfcheck.py

@@ -625,6 +625,10 @@ def check_rangefinder():
 
 @check('Boot duration')
 def check_boot_duration():
+    if not os.path.exists('/etc/clover_version'):
+        info('skip check')
+        return # Don't check not on Clover's image
+
     output = subprocess.check_output('systemd-analyze').decode()
     r = re.compile(r'([\d\.]+)s\s*$', flags=re.MULTILINE)
     duration = float(r.search(output).groups()[0])

clover/www/js/topics.js

@@ -40,6 +40,7 @@ function viewTopicsList() {
 let rosdistro;
 
 function viewTopic(topic) {
+	let counter = 0;
 	let index = '<a href=topics.html>Topics</a>';
 	title.innerHTML = `${index}: ${topic}`;
 	topicMessage.style.display = 'block';
@@ -51,10 +52,11 @@ function viewTopic(topic) {
 	});
 
 	new ROSLIB.Topic({ ros: ros, name: topic }).subscribe(function(msg) {
+		counter++;
 		document.title = topic;
 		if (mouseDown) return;
 
-		if (msg.header.stamp) {
+		if (msg.header && msg.header.stamp) {
 			if (params.date || params.offset) {
 				let date = new Date(msg.header.stamp.secs * 1e3 + msg.header.stamp.nsecs * 1e-6);
 				if (params.date) msg.header.date = date.toISOString();
@@ -62,7 +64,8 @@ function viewTopic(topic) {
 			}
 		}
 
-		topicMessage.innerHTML = yamlStringify(msg); // JSON.stringify(msg, null, 4);
+		let txt = `<div class=counter>${counter} received</div>${yamlStringify(msg)}`; // JSON.stringify(msg, null, 4);
+		topicMessage.innerHTML = txt;
 	});
 }
 

clover/www/topics.html

@@ -15,6 +15,7 @@
 				white-space: pre;
 				font-family: monospace;
 			}
+			.counter { color: #b9b9b9; margin-bottom: 1em; }
 			#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); }

clover_simulation/README.md

@@ -10,7 +10,7 @@ The simulation may be configured by a set of arguments:
 
 * `mav_id` (*integer*, default: *0*) - MAVLink identifier of the vehicle. **Note**: Multi-vehicle simulation is possible, but requires extensive changes to launch files;
 * `est` (*string*, default: *lpe*, possible values: *lpe*, *ekf2*) - PX4 estimator selection. Note that this may be overriden in the startup scripts for your craft;
-* `vehicle` (*string*, default: *clover*) - PX4 vehicle name. Depending on this parameter, different PX4 presets will be loaded. **Note**: The default value, *clover*, requires you to use [Clover-specific PX4 branch](https://github.com/CopterExpress/Firmware/tree/v1.10.1-clever);
+* `vehicle` (*string*, default: *clover*) - PX4 vehicle name. Depending on this parameter, different PX4 presets will be loaded.
 * `main_camera` (*boolean*, default: *true*) - controls whether the drone will have a vision position estimation camera;
 * `rangefinder` (*boolean*, default: *true*) - controls whether the drone will have a laser rangefinder;
 * `led` (*boolean*, default: *true*) - controls whether the drone will have a programmable LED strip;

docs/en/camera.md

@@ -1,7 +1,5 @@
 # Working with the camera
 
-> **Note** In the image version **0.20** `clever` package was renamed to `clover`. See [previous version of the article](https://github.com/CopterExpress/clover/blob/v0.19/docs/en/camera.md) for older images.
-
 Make sure the camera is enabled in the `~/catkin_ws/src/clover/clover/launch/clover.launch` file:
 
 ```xml

docs/en/connection.md

@@ -20,15 +20,14 @@ USB connection is the preferred way to connect to the flight controller.
 
 ## UART connection
 
-> **Note** In the image version **0.20** `clever` package and service was renamed to `clover`. See [previous version of the article](https://github.com/CopterExpress/clover/blob/v0.19/docs/en/connection.md) for older images.
-
 <!-- TODO: Connection scheme -->
 
 UART connection is another way for the Raspberry Pi and FCU to communicate.
 
-1. Connect Raspberry Pi to your FCU using a UART cable.
-2. [Connect to the Raspberry Pi over SSH](ssh.md).
-3. Change the connection type in `~/catkin_ws/src/clover/clover/launch/clover.launch` to UART:
+1. Connect the TELEM 2 port on the flight controller using a UART cable to the Raspberry Pi pins following this instruction: the black cable (*GND*) to Ground, the green cable (*UART_RX*) to *GPIO14*, the yellow cable (*UART_TX*) to *GPIO15*. Do not connect the red cable (*5V*).
+2. Set the PX4 parameters: `MAV_1_CONFIG` to TELEM 2, `SER_TEL2_BAUND` to 921600 8N1. In PX4 of version prior to v1.10.0 the parameter `SYS_COMPANION` should be set to 921600.
+3. [Connect to the Raspberry Pi over SSH](ssh.md).
+4. Change the connection type in `~/catkin_ws/src/clover/clover/launch/clover.launch` to UART:
 
     ```xml
     <arg name="fcu_conn" default="uart"/>
@@ -40,15 +39,4 @@ UART connection is another way for the Raspberry Pi and FCU to communicate.
     sudo systemctl restart clover
     ```
 
-> **Hint** Set the `SYS_COMPANION` PX4 parameter to 921600 to enable UART on the FCU.
-
-## SITL connection
-
-In order to connect to a local or a remote [SITL](sitl.md) instance set the `fcu_conn` parameter to `udp` and `fcu_ip` to the IP address of the SITL instance (`127.0.0.1` if you are running the instance locally):
-
-```xml
-<arg name="fcu_conn" default="udp"/>
-<arg name="fcu_ip" default="127.0.0.1"/>
-```
-
 **Next**: [Using QGroundControl over Wi-Fi](gcs_bridge.md)

docs/en/mavros.md

@@ -40,6 +40,8 @@ Messages published in the topics may be viewed with the `rostopic` utility, e.g.
 
 `/mavros/setpoint_position/local` — set target position and yaw of the drone \(in the ENU coordinate system\).
 
+`/mavros/setpoint_position/global` – set target position in global coordinates (latitude, longitude, altitude) and yaw of the drone.
+
 `/mavros/setpoint_position/cmd_vel` — set target linear velocity of the drone.
 
 `/mavros/setpoint_attitude/attitude` and `/mavros/setpoint_attitude/att_throttle` — set target attitude and throttle level.
@@ -52,4 +54,4 @@ Messages published in the topics may be viewed with the `rostopic` utility, e.g.
 
 `/mavros/setpoint_raw/attitude` — sends [SET\_ATTITUDE\_TARGET](https://mavlink.io/en/messages/common.html#SET_ATTITUDE_TARGET) message. Allows setting the target attitude /angular velocity and throttle level. The values to be set are selected using the `type_mask` field
 
-`/mavros/setpoint_raw/global` — sends [SET\_POSITION\_TARGET\_GLOBAL\_INT](https://mavlink.io/en/messages/common.html#SET_POSITION_TARGET_GLOBAL_INT). Allows setting the target attitude in global coordinates \(latitude, longitude, altitude\) and flight speed. **Not supported in PX4** \([issue](https://github.com/PX4/Firmware/issues/7552)\).
+`/mavros/setpoint_raw/global` — sends [SET\_POSITION\_TARGET\_GLOBAL\_INT](https://mavlink.io/en/messages/common.html#SET_POSITION_TARGET_GLOBAL_INT). Allows setting the target attitude in global coordinates \(latitude, longitude, altitude\) and flight speed.

docs/en/simulation_native.md

@@ -2,7 +2,7 @@
 
 Setting up the simulation environment from scratch requires some effort, but results in the most performant setup, with less chance of driver issues.
 
-> **Hint** See up-to-date commands set for installation Clover simulation software in the script, that builds the virtual machine image with the simulator: [`install_software.sh`](https://github.com/CopterExpress/clover_vm/blob/master/scripts/install_software.sh).
+<!-- > **Hint** See up-to-date commands set for installation Clover simulation software in the script, that builds the virtual machine image with the simulator: [`install_software.sh`](https://github.com/CopterExpress/clover_vm/blob/master/scripts/install_software.sh). -->
 
 Prerequisites: **Ubuntu 20.04**.
 
@@ -66,7 +66,7 @@ PX4 will be built along with the other packages in our workspace. You may clone
 Clone PX4 sources and make the required symlinks:
 
 ```bash
-git clone --recursive --depth 1 --branch v1.12.0 https://github.com/PX4/PX4-Autopilot.git ~/PX4-Autopilot
+git clone --recursive --depth 1 --branch v1.12.3 https://github.com/PX4/PX4-Autopilot.git ~/PX4-Autopilot
 ln -s ~/PX4-Autopilot ~/catkin_ws/src/
 ln -s ~/PX4-Autopilot/Tools/sitl_gazebo ~/catkin_ws/src/
 ln -s ~/PX4-Autopilot/mavlink ~/catkin_ws/src/

docs/ru/camera.md

@@ -1,7 +1,5 @@
 # Работа с камерой
 
-> **Note** В версии образа **0.20** пакет и сервис `clever` был переименован в `clover`. Для более ранних версий см. документацию для версии [**0.19**](https://github.com/CopterExpress/clover/blob/v0.19/docs/ru/camera.md).
-
 <!-- TODO: физическое подключение -->
 
 Для работы с основной камерой необходимо убедиться что она включена в файле `~/catkin_ws/src/clover/clover/launch/clover.launch`:

docs/ru/connection.md

@@ -20,15 +20,14 @@
 
 ## Подключение по UART
 
-> **Note** В версии образа **0.20** пакет и сервис `clever` был переименован в `clover`. Для более ранних версий см. документацию для версии [**0.19**](https://github.com/CopterExpress/clover/blob/v0.19/docs/ru/connection.md).
-
 <!-- TODO схема подключения -->
 
 Дополнительным способом подключения является подключение подключение по интерфейсу UART.
 
-1. Подключите Raspberry Pi к полетному контроллеру по UART.
-2. [Подключитесь в Raspberry Pi по SSH](ssh.md).
-3. Поменяйте в launch-файле Клевера (`~/catkin_ws/src/clover/clover/launch/clover.launch`) тип подключения на UART:
+1. Подключите Raspberry Pi к полетному контроллеру по UART. Для этого соедините кабелем порт TELEM 2 на полетном контроллере к пинам на Raspberry Pi следующем образом: черный провод (GND) к Ground, зеленый (*UART_RX*) к *GPIO14*, желтый (*UART_TX*) к *GPIO15*. Красный провод (*5V*) подключать не нужно.
+2. Измените значения параметров PX4: `MAV_1_CONFIG` на TELEM 2, `SER_TEL2_BAUND` на 921600 8N1. В PX4 до версии v1.10.0 необходима установка параметра `SYS_COMPANION` в значение 921600.
+3. [Подключитесь в Raspberry Pi по SSH](ssh.md).
+4. Поменяйте в launch-файле Клевера (`~/catkin_ws/src/clover/clover/launch/clover.launch`) тип подключения на UART:
 
     ```xml
     <arg name="fcu_conn" default="uart"/>
@@ -40,15 +39,4 @@
     sudo systemctl restart clover
     ```
 
-> **Hint** Для корректной работы подключения Raspberry Pi и полетного контроллера по UART необходимо установить значение параметра `SYS_COMPANION` на 921600.
-
-## Подключение к SITL
-
-Для того, чтобы подсоединиться к локально/удаленно запущенному [SITL](sitl.md), необходимо установить аргумент `fcu_conn` в `udp`, и `fcu_ip` в IP-адрес машины, где запущен SITL (`127.0.0.1` для локального):
-
-```xml
-<arg name="fcu_conn" default="udp"/>
-<arg name="fcu_ip" default="127.0.0.1"/>
-```
-
 **Далее**: [Подключение QGroundControl по Wi-Fi](gcs_bridge.md).

docs/ru/mavros.md

@@ -40,6 +40,8 @@ MAVROS подписывается на определенные ROS-топики
 
 `/mavros/setpoint_position/local` — установить целевую позицию  и рысканье \(yaw\) беспилотника \(в системе координат ENU\).
 
+`/mavros/setpoint_position/global` – установить целевую позицию в глобальных координатах (ширина, долгота и высота) и рысканье беспилотника.
+
 `/mavros/setpoint_velocity/cmd_vel` — установить целевую линейную скорость беспилотника.
 
 `/mavros/setpoint_attitude/attitude` и `/mavros/setpoint_attitude/att_throttle` — установить целевую ориентацию \(Attitude\) и уровень газа.
@@ -52,4 +54,4 @@ MAVROS подписывается на определенные ROS-топики
 
 `/mavros/setpoint_raw/attitude` — отправка пакета [SET\_ATTITUDE\_TARGET](https://mavlink.io/en/messages/common.html#SET_ATTITUDE_TARGET). Позволяет установить целевую ориентацию / угловые скорости и уровень газа. Выбор устанавливаемых величин осуществляется с помощью поля `type_mask`
 
-`/mavros/setpoint_raw/global` — отправка пакета [SET\_POSITION\_TARGET\_GLOBAL\_INT](https://mavlink.io/en/messages/common.html#SET_POSITION_TARGET_GLOBAL_INT). Позволяет установить целевую позицию в глобальных координатах \(ширина, долгота, высота\), а также скорости полета. **Не поддерживается в PX4** \([issue](https://github.com/PX4/Firmware/issues/7552)\).
+`/mavros/setpoint_raw/global` — отправка пакета [SET\_POSITION\_TARGET\_GLOBAL\_INT](https://mavlink.io/en/messages/common.html#SET_POSITION_TARGET_GLOBAL_INT). Позволяет установить целевую позицию в глобальных координатах \(ширина, долгота, высота\), а также скорости полета.

docs/ru/simulation_native.md

@@ -2,7 +2,7 @@
 
 Настройка среды для симуляции с нуля требует некоторых усилий, однако это приведет к улучшению производительности и к уменьшению вероятности появления проблем с драйверами.
 
-> **Hint** Смотрите актуальный набор команд установки необходимого ПО для запуска симулятора Клевера в скрипте сборки виртуальной машины с симулятором: [`install_software.sh`](https://github.com/CopterExpress/clover_vm/blob/master/scripts/install_software.sh).
+<!-- > **Hint** Смотрите актуальный набор команд установки необходимого ПО для запуска симулятора Клевера в скрипте сборки виртуальной машины с симулятором: [`install_software.sh`](https://github.com/CopterExpress/clover_vm/blob/master/scripts/install_software.sh). -->
 
 Требования для сборки: **Ubuntu 20.04**.
 
@@ -66,7 +66,7 @@ sudo /usr/bin/python3 -m pip install -r ~/catkin_ws/src/clover/clover/requiremen
 Склонируйте исходный код PX4 и создайте необходимые симлинки:
 
 ```bash
-git clone --recursive --depth 1 --branch v1.12.0 https://github.com/PX4/PX4-Autopilot.git ~/PX4-Autopilot
+git clone --recursive --depth 1 --branch v1.12.3 https://github.com/PX4/PX4-Autopilot.git ~/PX4-Autopilot
 ln -s ~/PX4-Autopilot ~/catkin_ws/src/
 ln -s ~/PX4-Autopilot/Tools/sitl_gazebo ~/catkin_ws/src/
 ln -s ~/PX4-Autopilot/mavlink ~/catkin_ws/src/