The garage door is the largest moving object in a home and should be properly adjusted in order for the safety reverse system to function properly.
With this project shows how to build a single button code lock for your garage door. The electronic lock is build around an ATtiny13 and code is written in Basic.
wait for the next
LED flash, once all the digits are entered the UC checks for the proper code and opens the door and the code can be changed by pressing a button on the circuit board. It was measured 34V which is right at the top of my acceptable input voltage for the LM7805 regulator.
My garage door opener is quite old, but it has the connections I need. I measured 34V which is right at the top of my acceptable input voltage for the LM7805 regulator. I figured out what each of these terminals is for by studying the aftermarket wireless opener module that attaches here.
This came with a set of storage containers and has already been heavily used for food. Now it’s got a new life. I don’t think I need a heat sink for the voltage regulator but I came across a small piece of threaded aluminum angle bracket from an old project so I threw it in.