Hi! I recently built a small 555 based monostable password protection circuit. I designed it so that upon pressing the right keys the monostable goes on for 15 seconds. I can get a small geared motor running for this period but I' am at a loss at designing a suitable lock with it to get a small door locked (once its been closed). Can anyone help me with some ideas about how to get about building this lock which would use a motor based lock mechanism to lock the door within 10-15 seconds? I can change the timing to as low as 1 second but I' am hoping to get this working with what I have designed. Thankyou in advance! Any ideas would be much appreciated!