Button input sender ft. Debounce

button-input-ft-debounce.ino

/*
===================
BUTTON INPUT SENDER
By Accommodavid
~ wow ~

v1.0    MIT License
===================
*/
#define BUTTON_PIN 12

int buttonState;
int lastButtonState = HIGH;

void setup() {
  Serial.begin(9600);
  pinMode(BUTTON_PIN, INPUT_PULLUP);
}

void loop() {
  int reading = digitalRead(BUTTON_PIN);
  
  if (reading != lastButtonState) {
    buttonState = reading;
    buttonState == HIGH ? Serial.write(0) : Serial.write(1);
    delay(100);  
    lastButtonState = reading;
  }
}