// Led interfaceing

// Define the pin number for the LED
#define led 4

void setup() {
  // Initialize serial communication with a baud rate of 115200
  Serial.begin(115200);
  
  // Print "Hello, ESP32!" to the serial monitor
  Serial.println("Hello, ESP32!");
  
  // Set the LED pin as an output
  pinMode(led, OUTPUT);
}

void loop() {
  // Add a delay of 1000 milliseconds (1 second) to slow down the simulation
  delay(1000); // this speeds up the simulation
  
  // Turn the LED on by setting its pin to HIGH
  digitalWrite(led, HIGH);
  
  // Add a delay of 1000 milliseconds (1 second)
  delay(1000); // 1000ms = 1s
  
  // Turn the LED off by setting its pin to LOW
  digitalWrite(led, LOW);
}