40khz IR tester

Posted on Apr 29, 2012

Use this circuit to test if the light coming from your 40khz IR emitter is really emitting the right frequency. The schematic says to use a GP1U5X ir module, but probably any 40khz detector module will work.. I used a GP1U26X module.

40khz IR tester
Click here to download the full size of the above Circuit.

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