/Macropad

MIT LicenseMIT

2x4 Macropad

A small and cheap 8 key macropad.

Parts Required

  • PCB
  • Arduino Pro Micro
  • 8 Cherry MX Compatible switches
  • 8 Keycaps

Where to buy

If you can't or don't want to produce this PCB yourself, you can PM me on Reddit, and I can send you one for $2 + Shipping! (from Australia)

Firmware

The official firmware is not quite ready yet! Until then, use the following guide to help you build your own.

Pinout

The pinout for each of the buttons is as follows.

Example Arduino Code

bool getState(pin) {
  // INPUT_PULLUP means that the pin is LOW when pressed and HIGH when released
  return (digitalRead(2) == LOW);
}

void setup() {
  // Initialise the first button
  // The pin for the first button corrosponds to 2
  pinMode(2, INPUT_PULLUP); 
}

void loop() {
  // Read the state of the button
  bool state = getState(2);
}