// Pin definitions
#define LED_PIN D7
#define SWITCH_PIN D6

// Variables to store switch state and previous state
int switchState = 0;
int prevSwitchState = 0;

// Variable to store LED state
bool ledState = false;

void setup() {
  // Initialize LED pin as output
  pinMode(LED_PIN, OUTPUT);
  
  // Initialize switch pin as input
  pinMode(SWITCH_PIN, INPUT);
}

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

  // Check if the switch state has changed
  if (switchState != prevSwitchState) {
    // If switch is pressed (HIGH), toggle LED state
    if (switchState == HIGH) {
      ledState = !ledState;
      digitalWrite(LED_PIN, ledState);
    }

    // Update previous switch state
    prevSwitchState = switchState;
  }
}