Thank you 
Will look into using mosfet. I saw the video on Make's youtube channel regarding transistors, thought I had it now!! 
What this circuit is supposed to do is that when the mailman opens the mailbox door, the circuit will start. It will then send a signal to the receiver notifying me about mail. So the lid will be open long enough to send the message, but I am trying to learn so I keep adding more just so I can read more about different components, but also, learn more programming as the code will be more difficult.
After the mailman has opened and closed the lid, and the message has been sent, then the circuit will wait for me top open the part with the lock. It will then reset the circuit This means I will not get a lot of notifications, only one until I reset the whole thing by unlocking and grabbing my mail
I made a modification on my circuit now. Also, I will add a resistor between base and output pin. But need to read on what value that resistor should have.