One of my hobbies is embedded electronics. I was thinking of how cities/municipalities/etc pay a lot of “meter maids” to go around and ticket parking offenses, and how it really should be automated. This way you could eliminate most of them (but not all) and increase revenue at the same time. Of course if you park at meters you probably won’t like this prototype I’ve made.
I came across a neat project that someone did where they wired up their garage door to be opened by their Raspberry Pi. I thought I would give it a try and I had some issues. I made this post in case someone else runs into the same problems.