Thread: Need help with Sensor
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Unread 05-02-2004, 23:58
Marc P. Marc P. is offline
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Re: Need help with Sensor
I believe the IR recievers are setup to output a low voltage as positive confirmation of a signal. This means with no IR signal, it will output 5 volts. When there is and IR signal, it will output a lower voltage (ideally 3.3v I believe, as per the spec sheet of these sensors).

If your sensors are outputting a lower voltage with no signal, it could mean a number of things- damaged recievers, IR noise/reflection, unstable input voltage, or something of the like.