Digital Circuit Design

Circuit Schematic As can be seen in the figure above, the IC 555 is configured as an astable whose pin#2 is used for sensing the proximity or the capacitance of a human hand. Pin#2 is terminated with a metallic plate (which could be replaced by the faucet body) such that whenever somebody appr

Introduction Digital, or boolean, logic is the fundamental concept underpinning all modern computer systems. Put simply, it’s the system of rules that allow us to make extremely complicated decisions based on relatively simple “yes/no” questions. Digital circuitry Digital logic circuits can be br