Arduino: Project 28: Controlling my study lamp through relay module

OK, so this project is basically about controlling devices directly connected to the AC main power supply (please exercise caution!!). So here I have controlled my study lamp using a relay and the Arduino. It’s one step closer to a Home Automation system!!

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Things Required:

  1. Jumper Wires
  2. Arduino UNO
  3. Relay
  4. Lamp that is powered through your House AC supply
  5. USB Cable
  6. Arduino IDE on computer

Reference Material:

  1. What is a Relay- A relay is an electrically operated switch. Learn more about the workings of a relay HERE.
  2. You can refer to this video for the project.


View on/ Download from Github: (LINK)

int relay=7;

void setup() {
  pinMode(relay, OUTPUT);

void loop() {
  digitalWrite(relay, HIGH);
  digitalWrite(relay, LOW);

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Happy Learning!!

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