m using phototransistors and led …. i have to detect colours of three boxes placd randomly and then after sensing the colour ,there will be 3 pads placed on the floor…and i have to pass my robot through the pad of corresponding colour e.g, if i had sensed red box..then my robot should pass throug red pad…and then so on…
m using phototransistors , leds green red and yellow… and then lm 339 comparator…after that m cnfused ??? plz tell me as early as possible!!! and explain also…