Garage door code button

Behold, I’ve finished building a combination lock for my garage door. I’ve told a few of my friends about it and I get the “you know you can buy those, right?” responses. But no, you can’t. This is a single button code lock for a garage door. I got the idea from Alan Parekh’s project (called Button Code) and decided to build by own based around an ATtiny13 microcontroller. Join me after the break for all the details and remember, if you’re lazy you can always buy a kit that will do this from Alan. Continue reading