diff --git a/clover_blocks/www/blocks.js b/clover_blocks/www/blocks.js
index 02514ec9..8757cb83 100644
--- a/clover_blocks/www/blocks.js
+++ b/clover_blocks/www/blocks.js
@@ -583,3 +583,20 @@ Blockly.Blocks['set_servo'] = {
 		this.setHelpUrl(DOCS_URL + '#GPIO');
 	}
 };
+
+Blockly.Blocks['set_duty_cycle'] = {
+	init: function () {
+		this.appendValueInput("PIN")
+			.setCheck("Number")
+			.appendField("set GPIO pin");
+		this.appendValueInput("DUTY_CYCLE")
+			.setCheck("Number")
+			.appendField("to duty cycle");
+		this.setInputsInline(true);
+		this.setColour(COLOR_GPIO);
+		this.setPreviousStatement(true, null);
+		this.setNextStatement(true, null);
+		this.setTooltip("Set PWM duty cycle on a GPIO pin (better to control LEDs, etc). Duty cycle is set in range of 0–1.");
+		this.setHelpUrl(DOCS_URL + '#GPIO');
+	}
+};
diff --git a/clover_blocks/www/index.html b/clover_blocks/www/index.html
index 770325d8..6383f41c 100644
--- a/clover_blocks/www/index.html
+++ b/clover_blocks/www/index.html
@@ -120,6 +120,10 @@
 				<value name="PIN"><shadow type="math_number"><field name="NUM">1</field></shadow></value>
 				<value name="PWM"><shadow type="math_number"><field name="NUM">1500</field></shadow></value>
 			</block>
+			<block type="set_duty_cycle">
+				<value name="PIN"><shadow type="math_number"><field name="NUM">1</field></shadow></value>
+				<value name="DUTY_CYCLE"><shadow type="math_number"><field name="NUM">0.5</field></shadow></value>
+			</block>
 		</category>
 		<sep></sep>
 		<category name="Logic" colour="#5b80a5">
diff --git a/clover_blocks/www/python.js b/clover_blocks/www/python.js
index a598ad68..b8ee9510 100644
--- a/clover_blocks/www/python.js
+++ b/clover_blocks/www/python.js
@@ -430,6 +430,10 @@ const SET_SERVO = `\ndef set_servo(pin, pwm):
     pi.set_mode(pin, pigpio.OUTPUT)
     pi.set_servo_pulsewidth(pin, pwm)\n`;
 
+const SET_DUTY_CYCLE = `\ndef set_duty_cycle(pin, duty_cycle):
+    pi.set_mode(pin, pigpio.OUTPUT)
+    pi.set_PWM_dutycycle(pin, duty_cycle * 255)\n`;
+
 Blockly.Python.gpio_read = function(block) {
 	pigpio();
 	Blockly.Python.definitions_['gpio_read'] = GPIO_READ;
@@ -452,3 +456,11 @@ Blockly.Python.set_servo = function(block) {
 	var pwm = Blockly.Python.valueToCode(block, 'PWM', Blockly.Python.ORDER_NONE);
 	return `set_servo(${pin}, ${pwm})\n`;
 }
+
+Blockly.Python.set_duty_cycle = function(block) {
+	pigpio();
+	Blockly.Python.definitions_['set_duty_cycle'] = SET_DUTY_CYCLE;
+	var pin = Blockly.Python.valueToCode(block, 'PIN', Blockly.Python.ORDER_NONE);
+	var dutyCycle = Blockly.Python.valueToCode(block, 'DUTY_CYCLE', Blockly.Python.ORDER_NONE);
+	return `set_duty_cycle(${pin}, ${dutyCycle})\n`;
+}