Wireless Light Switch

Hey everyone,

I'm just starting out with Arduino projects and was looking for a bit of help/advice on a project that I had in mind. My end game is to have a home automation system, but for now what I'm focusing on is just get one light switch to work. The idea is that I could control my bedroom light (the one hardwired into my wall) with my arduino microcontroller wirelessly. Ideally, I'd still like the light switch to function as it normally would, as in it would perform an action when switched to the opposite position, regardless of whether the light was on/off or the switch was up/down. I've looked into some online tutorials and everything is relatively confusing to start out with. I know there are already devices out there that can do this for me (x10, insteon, etc.) but I'd really like to build something myself if possible. If anyone could provide some resources that could help me get started it'd be much appreciated. Thanks!

  • Emraj

Hi,
Start out by understanding how to control power with Arduino.

Info on the http://ArduinoInfo.Info WIKI here:
http://arduino-info.wikispaces.com/ArduinoPower

Wireless = X-bee module
Your bedroom light = need to control medium voltage (I dunno where you live, but the tension in your socket is around 230VAC), so an adequate relay command by arduino with a transistor.

But i think you'll have to make some hole in your wall to put in the arduino inside :grin: Not an easy task to modify your electric installation. And it is dangerous working with mortal current.