Ever lose a garage door opener and looked for a replacement on Amazon? The replacements for my garage door were $20-$30. I figured I’d make one using a $10 pi zero (Ok for like $30 after all accessories) but at least I can use it to control my garage from anywhere I am connected to the internet.Materials:PI Zero Wireless and all accessories (power supply, gpio header, case, etc)4 channel Relay (you can use a 1 ch or 2 ch, but the price difference for 4 ch was very little so I bought the 4 ch)Blynk app (App store and http://www.blynk.cc/ )If you can follow instructions and have some linux/unix experience, you should be able to do this pretty easily.”

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