Whatever you connect the two outputs to will activate when the panel on that side is down. The outputs can even be used to open the exit door if you want. The outputs can be connected to further logic gates or switches. This will give you an input that can be switched between two or more outputs. The switch can take up a bit of space, but it is relatively simple. The output of the last gate being the final output.

You can build a XOR gate with more than 2 inputs by building multiple XOR gate and connecting the output of each gate to one input of the next gate.

It can get confusing where your outputs are so it is recommended to use a pit no smaller than 1x2.

XOR gates are particularly useful in adders and related circuits, and can be made in a single 1x1 pit.

Just an OR gate and a NAND gate connected to the output are needed. It can also be created by adding a NOT gate to the output.Ī XOR gate is activated when an odd number of its inputs are activated, most of the time there are only two inputs so the XOR gate is activated when only one of the inputs is activated, or you could say when the inputs are opposite. You can build one by setting the output of the OR gate to start open (for a door) or start enabled. NOR gateĪ NOR gate is the opposite of an OR gate, it is activated when none of its inputs are activated.

Logic circuit maker