Basic setup for Arduino with Relay

1/* 
2 * Credits to all sources on Google and Youtube, acting as reference  to this code below. This code is not 
3 * TechValer's own creation. TechValer  has referred to different projects and websites to 
4 * find an easy code for  beginners to get started with Relay and Arduino.
5 * TechValer does not claim  this code to be its own. TechValer is greatly thankful for original 
6 * creaters  of this code and also all others who acted as reference. 
7 */
8
9/* 
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20
21/*
22  * Thanks to Drona Automations Pvt.Ltd for Sponsoring this project!
23 */
24 
25int  Relaypin= 3; // Define input pin for relay
26
27void setup() {
28  // put your  setup code here, to run once:
29pinMode(Relaypin, OUTPUT); // Define the Relaypin  as output pin
30}
31
32void loop() {
33  // put your main code here, to run  repeatedly:
34digitalWrite(Relaypin, HIGH); // Sends high signal 
35delay(1000);  // Waits for 1 second
36digitalWrite(Relaypin, LOW); // Makes the signal low
37delay(1000);  // Waits for 1 second
38}
39