Technology related articles as time permits. From 3D printing, electronics, microcontrollers, industrial automation, and more. YouTube Channel What is a diode? A diode is a semiconductor that only allows current to flow in one direction, it is a one way valve What is a Resistor? A Resistor "resists" current flow. Think of it as a restriction or a water valve that is stuck in a DIY Sound Localization Sensor I searched for days trying to find a commercial sound localization sensor or info on how to build one. Sound « Previous 1 … 7 8 9 Go to the Blog