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Originally Posted by KBMSora
We built the IR beacon and sensor, but when the sensors were hooked up to an oscilloscope the sensor only outputs when the beacon is less than a foot away. Is anyone else having this problem? If so, has anyone found a solution to this problem. Thanks.  |
Make sure the signal on pin 1 of Q1 of the beacon circuit looks kinda like one of the two waveforms shown in
this illustration. Make sure that you swapped pin 2 and 3 of Q1 when you built the beacon.
This schematic is how it should be wired. As Dave pointed out, you should be able to detect the beacon from at least twenty feet away. Let us know what you find out.
-Kevin