Hi! This has nothing to do with Arduino so sorry about that, I just don't know other places where smart people can give me answers about electronics. Anyways, I have been making a little password lock system using npn transistors (BC547B and two 2n551's) that will allow you to open and close a door using a motor if everything is correct. I will post the circuit below. Basically it is a not gate combined with an and gate. When everything is correct, it can light up an led but definitely not drive a motor. What can I do to be able to drive the motor? Can I change resistor values? Get a boost converter? I'm not sure. Thanks! It is part of a clock I am making so that my teacher can store stuff.