Material: Arduino Mega, EL wire, El Escudo Dos board, toggle switches, LEDs, and 7-segment LED on an acrylic sheet
Company: System Source
Designer: Bob Roswell and Aubrey Quasney
Year: 2015
;This hands-on display demonstrates how logic gates (AND, XOR, OR) can be used to perform addition. The user turns switches on or off to represent binary numbers, and the logic calculates the sum of the numbers. Ordinary diagrams of adding circuits make the user track the state of the gates, but we have used EL wire (Electroluminescent Wire) that glows when voltage runs through it to show if there is a 0 or a 1 on a particular trace of the circuit.
