Project 2 Even Parity Checker

The Even Parity Checker uses an XOR gate to determine if the 3-bit binary number has an even number of 1's. If it does not have an even number of 1's the LED lights up to indicate there is no parity. The LSB is used as a parity bit, determined beforehand, to check for error. The message should have and even number of 1's, so the 4th dip switch is flipped depending on 3-bit binary number being checked.