Abstract

This paper represents design and development of a low cost solar automatic vehicle with two innovative approach. In both approaches, the solar automatic vehicle will be able to move on the roadturn to leftor right and stop at any obstruction on the road automatically. The automation is done by using three photosensors in the first approach and by using photosensorsand a microcontroller (PIC 16F877A) in the final approach.In the first approach, the photo sensors detects black or white color. Depending upon the color, the left and right photosensor will generates control instructions for the vehicle by observing the road so that the vehicle can turn left or right automatically and for any kind of obstruction found in road, the front sensor will detect it and send signal to the relay, which will stop driving the main power source to the driving unit and makesthe vehiclestop.In the final approach photosensors, depending upon color of the road, detect signals from the road and produce control instruction for the microcontroller. Microcontroller then process the instruction and generate instruction for the driving section. The driving section drives the vehicle according to the road.