Project 2: Relay Switching

In this project we will switch on and switch off an DC relay connected to the Arduino.

Components Required:


1. Arduino Board
2. USB Cable that will connect the Arduino Board to the PC or your Laptop.
3. Breadboard
4. 5 Volt SPDT DC relay

Circuit Diagram:

Code:

int relaycoil = 12;

void setup()
{
pinMode(relaycoil, OUTPUT);
}
void loop()
{
digitalWrite(relaycoil, HIGH);
}

Note:

You can use various circuits like IR Receiver interfacing to switch these relays, etc. Explore your ideas with these basic ideas.