IR sensor cicuit for maze solving robot

govinho88

New Member
Hi guys,

I am trying to build a maze solving robot for a local competition.I have decided to use IR sensors to detect the walls as I plan to solve the maze by the wall following algorithm. However, I dont really know the circuit for a wall detecting IR sensor...I have found some on the net but those circuits are for the line following robot.Can anyone please help me with the Circuit...pls
 

I have built two circuits for IR detection, and have used them many times on robots:
**broken link removed**
**broken link removed**
 
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