I have known about arduinos existence for quite a while but I never got into it because I'd have no idea of what to make. But recently I got an idea. In our building we got RFID tags to open the entrance ports, to book time in the sauna and laundry, but not for our apartments. I thought it would be cool to create something that would read my existing RFID tag (or a new one if the one I got now isn't readable) and unlock the door for me.
I'm renting the apartment, so I'm probably not allowed to drill in the door or outside wall. Also, I don't have these doorknob locks I've seen in other RFID lock instructables, but a doorhandle with a lock over it which you rotate to lock/unlock, much like this but without the upper keyhole.
I've tested a bit if I can put wires out the door and still being able to close it, and it seems like it's working alright.
seems to have a mechanism of turning the lockknob which maybe I can use? I don't know how I should create the parts though becuase I have no knowledge and no place to create them (I'm a web developer), but I guess I can check around town and with friends if they know a place that can create them for me.
So I have a couple of questions:
- Do you think an RFID lock mechanism would be safe? Could it be hacked with other RFID tags?
- What part do you reckon I need? Obviously an Arduino, an RFID reader, and some sort of motor to turn the lock, but I'm not really sure which.
- I should still be able to open/lock the door with a key if the system would fail. I don't want to damage the system in that case.
- How much do you think a project like this can cost?