IR sensor cicuit for maze solving robot

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govinho88

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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**
 
Re:

I have a circuit maybe ill post it tommorow coz im at work right now.
I suggest you use the sonar sensor for more accurate result.
 
here

here is the ckt i used and it was perfect
 

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