// Pins for LEDs
#define Led1 0 // Example GPIO pin for LED 1
#define Led2 1 // Example GPIO pin for LED 2
#define Led3 2 // Example GPIO pin for LED 3
#define Led4 3 // Example GPIO pin for LED 4
#define ButtonPin 4 // Example GPIO pin for the button

void setup() {
  pinMode(Led1, OUTPUT); // Set LED pin 1 as an output
  pinMode(Led2, OUTPUT); // Set LED pin 2 as an output
  pinMode(Led3, OUTPUT); // Set LED pin 3 as an output
  pinMode(Led4, OUTPUT); // Set LED pin 4 as an output
  pinMode(ButtonPin, INPUT_PULLUP); // Set button pin as input with internal pull-up resistor
}

void loop() {
  if (digitalRead(ButtonPin) == LOW) { // If button is pressed
    digitalWrite(Led1, HIGH); // Turn LED 1 on
    digitalWrite(Led2, HIGH); // Turn LED 2 on
    digitalWrite(Led3, HIGH); // Turn LED 3 on
    digitalWrite(Led4, HIGH); // Turn LED 4 on
  } else {
    digitalWrite(Led1, LOW); // Turn LED 1 off
    digitalWrite(Led2, LOW); // Turn LED 2 off
    digitalWrite(Led3, LOW); // Turn LED 3 off
    digitalWrite(Led4, LOW); // Turn LED 4 off
  }
}