This part of the project took me too much time.. what is changed from the previous part? probably everything!
As I said in the previous part, the wireless controller or basically the software do not worry me much as the mechanical mechanism. It turns out that rotating my door key is actually a difficult operation, but because I got leverage (large key), I didn't think so. My mechanical requirements are not simple as I thought also.
What are my requires?
1) The mechanism should not stick up too much from the door and should have sleek design. If its stick up more than the handle for example, it probably too much.
2) The actual key and cylinder should still be operational in case my controller fail to response.
3) The key should rotate in decent time (no more than few seconds)
