I have built a maze solving Robot using PIC. Everything else is working i.e. robot is making required turns(left or right) to solve a maze.I tested it by giving logic high and low on inputs using power supply. But my object detection sensor circuit is not working.I was building a IR sensor.
Can somebody help me find a working object detection sensor circuit for my robot.

 

It would help if you would post the schematic so that we can see how you have your IR sensor circuit implemented.

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