The designing of the prototype:

The first thing we did was design the pressure plates and ensure that they were functional by checking the voltage that passes through them. To do the pressure plates, we wrapped two pieces of card board with aluminum foil and pressed them against each other with a cardboard placed in between. Then we attached each side of the covered cardboard to a wire. Once plugged into the breadboard, the wires would complete the circuit and the pressure plate would be activated.