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This is the first installment of what I hope will be a complete and easy to understand series of tutorials on remote control using Arduino, Bluetooth, and free software that allows you to control just about any electrical device from an LED all the way to 110 volt AC lamps, fans, etc.

A word of warning: WARNING 110 volts of alternating current can kill, maim, and otherwise ruin your day so if you're not comfortable working with mains (110VAC in the USA) voltage please use this circuit to remotely turn on and off an LED instead. It is possible you could safely wire up the 110 volt AC circuit and then forget the circuit is live with powerful and deadly voltage and grab a bare wire thinking it is turned off when actually it is not. So be warned. Should you get hurt I am not responsible - You are!

Ok now that is out of the way, let's get started.

UPDATE: Part two using an Android Smart Phone is available.

Step 1: Components You'll Need

To build this project in its most basic version you will need:

  • HC-06 or HC-05 Bluetooth Module - ebay search

  • Arduino Uno/Nano/Pro-Mini just to name a few

  • Relay Module - ebay search

  • Bread Board - ebay search

  • 5 volt direct current source - I used a converted computer ATX power supply

  • Jumper wires - I use Dupont type - ebay search

  • Optional Components:

  • 3.3V - 5V Logic Level Bi-Directional Shifter Module - ebay search

  • 3.3 volt direct current source - Again I used a converted computer ATX power supply

About This Instructable

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Bio: Electronics have always been fascinating to me. Things that get my attention are clocks, lamps, motion activated devices, light activated devices, laser intruder alert systems ... More »
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