Simple Safe Cracking Robot - 1st Open

Here's what I've been working on for a few months, in what little free time I can find. This was the first successful open with my simple safe cracking robot. Unfortunately, I found serious problems with my code and broke everything when I tried to fix it. The microcontroller I used was a Parallax Propeller and I was attempting to program it in its native language called Spin. It's not an intuitive language for me. I've since switched to a different microcontroller that I can program in C/C++. And I'm rewriting all the code from scratch. So, it's not currently at a stage where it's able to open a lock. ... https://www.youtube.com/watch?v=8DJ6o7G8SFI