Arduino Led Lights Code Code Example

Example 1: code for led blink in arduino

void setup() {   LED_BUILTIN = 3; //or 13    // initialize digital pin LED_BUILTIN as an output.   pinMode(LED_BUILTIN, OUTPUT);  }  // the loop function runs over and over again forever void loop() {   digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)   delay(1000);                       // wait for a second   digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW   delay(1000);                       // wait for a second }

Example 2: blink led arduino

void setup() {   pinMode(ledPin, OUTPUT); }