10mm Green LED Module

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400px


Sample

/*

 grove Relay
 the LED will slowly blink

 This example code is in the public domain.
*/

int RelayControlPin = 13; void setup() {

 // initialize the digital pin as an output.
 // Pin 13 has an LED connected on most Arduino boards:
 pinMode(RelayControlPin, OUTPUT);     

}

void loop() {

 digitalWrite(RelayControlPin, HIGH);   // set the LED on
 delay(500);              // wait for a second
 digitalWrite(RelayControlPin, LOW);    // set the LED off
 delay(500);              // wait for a second

}


Schematics