In this chapter, you’ll learn to safely control mains AC power outlets using various forms of automation and remote control. This technique lets you easily manipulate devices such as lamps, fans, and pumps from a distance, without any direct connection to the mains power wiring.
You’ll learn to:
Use optocouplers to isolate electrical signals
Hack a wireless AC mains remote-control transmitter and connect it to an Arduino circuit
Create a timer-controlled wireless AC mains outlet
Control AC mains outlets remotely with SMS text messages
Optocouplers
An optocoupler is a small device that allows the transmission ...
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