Imagine having to find your way with only a compass and the stars and being handed a GPS. This is what David Marpaung and colleagues have just done for designers of light-based chips. Through their ...

Audio synthesizers can range from vast racks of equipment with modules stitched together by a web of patch cords to a couple of 555s wired together in an Atari punk arrangement. This light-controlled ...

This file type includes high resolution graphics and schematics when applicable. This 8051 microcontroller-based control circuit adjusts the speed of a small permanent-magnet dc motor via photosensors ...