Arduino code video for 5v Relay (no power ligh) Robojax.com

This is the Arduino code for 5v Relay

This video shows you how to use control or connect AC or DC load using Arduino and relay. http://robojax.com/learn/arduino/

 /*
* This is the Arduino code for Dual Channel 5V Relay
 * to control turn ON or OFF AC or DC load
 * Watch the video https://youtu.be/58XWVDnB7Ss
 *  * 
 * Written by Ahmad Nejrabi for Robojax Video
 * Date: Dec 26, 2017, in Ajax, Ontario, Canada
 * Permission granted to share this code given that this
 * note is kept with the code.
 * Disclaimer: this code is "AS IS" and for educational purpose only.
 * 
 */

void setup() {
  pinMode(7, OUTPUT);// connected to S terminal of Relay

}

void loop() {

  digitalWrite(7,HIGH);// turn relay ON
  delay(3000);// keep it ON for 3 seconds

  digitalWrite(7, LOW);// turn relay OFF
 delay(5000);// keep it OFF for 5 seconds

}