Learn how to use a microcontroller combined with a mini-web server and IR transceiver to control electronic devices remotely. For example, you can pull up a webpage to control you TV or stereo. How does it work? IR pulses from remote controls are “recorded” and then played back on command. Since not that many electronic devices use infrared besides home entertainment, you can actually invent your own IR communication protocols to control your own circuitry projects.
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The circuitry is simple: a Propeller microcontroller, a cheap Ethernet module, and a basic IR circuit make up the miniature web server. As commands can be sent over a URL, any web enabled phone or computer can be used to control IR compatible devices. Check out the full ‘Web Clicker’ tutorial which is one of the cheapest home automation projects we have come across.