// Define the pins to be used
const int pinLED = 0; // Pin where the LED is connected
const int pinSwitch = 29; // Pin where the switch is connected

void setup() {
// Configure the LED pin as output
pinMode(pinLED, OUTPUT);
// Configure the switch pin as input with pull-up
pinMode(pinSwitch, INPUT_PULLUP);
}

void loop() {
// Read the state of the switch
int switchState = digitalRead(pinSwitch);

// If the switch is pressed (LOW state)
if (switchState == LOW) {
// Turn on the LED
digitalWrite(pinLED, HIGH);
// Perform three flashes
for (int i = 0; i < 3; i++) {
digitalWrite(pinLED, HIGH);
delay(500); // Turn on the LED for 500 ms
digitalWrite(pinLED, LOW);
delay(500); // Turn off the LED for 500 ms
}
// Turn off the LED
digitalWrite(pinLED, LOW);
// Wait until the switch is released
while (digitalRead(pinSwitch) == LOW) {}
}
}