LM317T Voltage Regulator with Pass Transistor

Here in my first robot which has the ability to detect laser light or a particular coloured ball and can be calibrated to get attracted or repelled by it accordingly. It has light sensors (ldr nad led) a microcontroller , 7805 voltage regulator IC , L293D motor driver IC AND LM324 comparator IC. It is the simplest combination of the given IC'S and one of the most basic robots and is ideal to learn for anyone interested in learning embedded systems and VLSI design in robotics.



http://www.youtube.com/watch?v=Dho_u3Zwe4I&hl=en