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Topic: Problem with IR receiver diode SEN-10266 (Read 1 time) previous topic - next topic


I just spent two days troubleshooting an intermittent problem with a SEN-10266 IR receiver diode which I was using to get commands from a TV remote to drive a robot with a Arduino Uno.  It was working fine all day while I was testing my robot.  Then in the evening it started to miss-read the IR data from my TV remote.  It seemed to stop working when I touched the IR receiving diode or moved the wiring or anything near it.  It seemed to work when I held the connecting wires to the diode.  Maybe a loose connection so I checked the plugs/pins.  They looked ok but I still replaced them.  Still the same problem.  I got so frustrated I soldered the IR diode pins directly onto the connecting wire.  Still the same intermittent problem.  I then replaced the IR diode with a new one.  Exactly the same intermittent problem.   Maybe it was something in my Uno program? So I wrote a simple program to just read the IR data from the IR diode.  Same dam bloody problem!  Intermittent miss reads but it seemed to be a little better (less number of miss reads) when I held or jiggled the connecting wire (it was plain PVC insulated connecting wire) or even when I put my hand near the IR receiver.  I tried pointing the TV remote in all different directions.  Still the same problem.  I replaced the batteries in the TV remote.  Still the same problem.  I changed the IR diode input from pin 12 to pin 11 on the Uno.  Same intermittent problem.  I gave up and went to bed.  I left everything as it was.  When I got home from work next day I tried it again and the IR diode was working perfectly!  But later this evening it started to miss-read again. 

I finally found the problem.

Can anyone guess what was causing my problem?


Interference from artificial lights turned on in the evening?
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compact fluorescent lights in particular?
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No.  Sorry.  The lights in the room are incandescent.  But you are getting close.

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