// Program: BlinkLED-E.ino
// The code configures the GPIO pin 25 as OUTPUT and
// toggles it HIGH and LOW every 1000 ms.

const int LedPin = 25;  // Declare the GPIO pin 25 as the LedPin

void setup() {
  // initialize digital pin LedPin as an output
  pinMode(LedPin, OUTPUT);
}

void loop() {
  digitalWrite(LedPin, HIGH);   // turn the LED ON by making the output voltage HIGH
  delay(1000);                  // wait for ONE second
  digitalWrite(LedPin, LOW);    // turn the LED OFF by making the output voltage LOW
  delay(1000);                  // wait for ONE second
}