Redstone Binary Calculator
this calculator adds two binary numbers with levers as the input and redstone torches as the output. there are 14 levers 7 for each number set. 64,32,16,8,4,2,1. if you are unfamiliar with the binary number system, ask the internet about it, im not holding any lectures today.
if you add an equality detector to this,it can be modified into a complex door lock
