Keyboard VS ClickButton

Your best reference may just be the code of the Keyboard library itself.

I want to use my Arduino to mute the mic in a MS Teams call. When being in a call in MS Teams on Windows there is a keyboard shortcut to mute the mic which can be easily send by my arduino (https://github.com/arduino-libraries/Keyboard):

Well sometimes it is hard to find the libraries on official websites (and the library installed directly using Arduino IDE was missing some files) so I will post you direct link to GitHub source with root directory. Here is the library.

#include "Keyboard.h" // Library with a lot of the HID definitions and methods // Can be useful to take a look at it see whats available // https://github.com/arduino-libraries/Keyboard/blob/master/src/Keyboard.h #include //Library for simple interfacing with encoders //declaring button pins const int buttonPin = 2; int previousButtonState = HIGH; void setup() { //declare the buttons as input_pullup pinMode(buttonPin, INPUT_PULLUP); Keyboard.begin(); } void loop() { //checking the state of the button int buttonState = digitalRead(buttonPin); //replaces button press with UP arrow if (buttonState == LOW && previousButtonState == HIGH) { // and it's currently pressed: Keyboard.press(' '); delay(50); } if (buttonState == HIGH && previousButtonState == LOW) { // and it's currently released: Keyboard.release(' '); delay(50); } previousButtonState = buttonState; }

Have you looked at the source code? The preprocessor defines are at the top of the header.

Have you downloaded this library? https://github.com/arduino-libraries/Keyboard

I would then use the ClickButton library (https://github.com/marcobrianza/ClickButton) to set up the buttons and catch button presses. This library can handle 6 types of button press (single, double, triple, once+hold, double+hold, triple+hold) and deals with debouncing (which might be part of your issues)