MediaKeyboard

STM32 Arduino Library with support for USB consumer control device (media keys). Installation and usage:

• Install STM32 support in Arduino IDE. See https://www.onetransistor.eu/2020/01/stm32-bluepill-arduino-support.html and https://github.com/stm32duino/Arduino_Core_STM32.
• Download this library (clone the repository) in your Arduino/libraries folder.
• When you select STM32 board enable USB support in HID (keyboard and mouse) mode (options should appear in Tools menu).
• Use sample sketch or this very simple example:

#include <MediaKeyboard.h>

void setup() {
  MediaKeyboard.begin();
  delay(1000); // wait long enough to let the host configure device
  
  MediaKeyboard.press(MEDIA_PLAY_PAUSE);
  MediaKeyboard.release();
}

void loop() {
}

For more information see USB multimedia keys on Arduino STM32.