im making the $50 robot and came across a big problem! im using all the specified electronics mentioned for this robot like the atmega8, sharp IR, hs311 servo. i havent constructed the chassis yet. but the circuit is done. but i cant calibrate the IR rangefinder. iv modified the two wheel servos, but kept the rangefinder's servo unmodified...isnt tht the way to do it? after mounting the rangefinder on the unmodified servo, iv tried calibrating it, but failed. i held an object (servo box, cd case, etc.) in front of the rangefinder at approximately 4inches away and then plugged in the battery. the rangefinder servo just moves to one direction and stops and doesnt react anymore, but the wheel servos keep rotating in the same direction, i.e. the robot wud keep moving in circles! iv tried using a different rangefinder, different microcontroller, burned the codes twice but still the same
plz help me or redirect to discussions which myt help.....thnx all!