One Button Keyboard
- Arduino pro micro, or Arduino micro (ex: https://www.amazon.fr/KeeYees-ATmega32U4-Développement-Leonardo-Bootloader/dp/B07FQJW2KN)
- Arcade button Diam 24mm (ex: https://www.amazon.fr/dp/B0819ZZRKC )
- 20x20mm 3mm plywood board
#include "Keyboard.h"
//https://www.arduino.cc/reference/en/language/functions/usb/keyboard/
// use this option for OSX.
// Comment it out if using Windows or Linux:
// char ctrlKey = KEY_LEFT_GUI;
// use this option for Windows and Linux.
// leave commented out if using OSX:
char ctrlKey = KEY_LEFT_CTRL;
char altKey = KEY_LEFT_ALT;
char altgrKey = KEY_RIGHT_ALT;
char shiftKey = KEY_LEFT_SHIFT;
char winKey = KEY_LEFT_GUI;
void setup() {
// make pin 2 an input and turn on the pull-up resistor so it goes high unless
// connected to ground:
pinMode(2, INPUT_PULLUP);
// initialize control over the keyboard:
Keyboard.begin();
}
void loop() {
while (digitalRead(2) == HIGH) {
// do nothing until pin 2 goes low
delay(20);
}
//send alt+a (azerty keyboard) default shortcut for Zoom
Keyboard.press(altKey);
Keyboard.press('q'); //send scancode of 'a' key (azerty)
delay(100);
Keyboard.releaseAll();
while (digitalRead(2) == LOW) {
// do nothing until pin 2 goes high
delay(20);
}
delay(20);
}
cut the plywood board with laser, and the file OneButtonBox.svg
file made with Boxes.py
