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Topic: IR sensor help (Read 2 times) previous topic - next topic


That is not a very good mode. This is because any charge carriers generated in the depletion layer are not necessarily swept out of the layer into the rest of the circuit. Where as applying a bias provides an electric field to get those charge carriers flowing.


You are right, that is not the best mode to get most accurate readings, but it is by far the most easy to set up and you can hardly connect anything wrong.
So to get things going and get an analogRead from the photodiode up and running it might be worth a try.

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