Blink LED

Blink LED simple codes

You will need:

LED

Jumper cables

Uno Board

USB cable

// Define the LED pin const int ledPin = 12; // LED connected to digital pin 12 void setup() { // Set the LED pin as an output pinMode(ledPin, OUTPUT); } void loop() { // Turn the LED on digitalWrite(ledPin, HIGH); // Wait for one second (2000 milliseconds) delay(1000); // Turn the LED off digitalWrite(ledPin, LOW); // Wait for one second (2000 milliseconds) delay(2000); }