Control ANY light or electrical appliance with you tablet or smartphone (wifi)

In this tutorial we will be making something I call a wifi controlled ac switch. (But it also works for DC applications that are powered by a wall outlet) Basically we will make a small box that can control any ac electric current in your home, based on commands from your tablet or smartphone. On top of that it can be programmed to react to input from any kind of sensor. Tailored to your needs and limited only by your imagination. The total cost of the project is between 5 and 25 depending on what you have lying around at home.”

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