Redstone Calcluator

First minecraft pocket edition redstone calculator ever built!

Fully resettable four bit binary calculator. I'm thinking about adding to the calculator subtracting and multiplying. Also maybe adding a bit to make it 5 bit? I haven't decided yet.
For some unknown reason, redstone torches just break randomly on the map. I don't know why, but maybe it is because the map it so big. If they do break it could mess up the whole map. Please contact me if it happens to you so I can try to trouble shoot. Thanks!
More redstone contraptions coming soon!?

twitter: @mrdiamondblock

Their are two spelling errors in the map, sorry :grinning: