This is the device by which you can switch on or off your printer or any other device connected to it.

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Step 1: Step 1: Requirements.

Hardware:

1.Arduino UNO

2.Ethenet Shield

3.Relay card

Software:

1.Arduino IDE

2.Web Browser

Step 2: Step 2: Connect the Shield With UNO

After Connecting:

connect pin 4 to in (relay with jumpers)

Gnd-Gnd

Vcc-5v