I connected the modules to 5V, ground and an oscilloscope output to see the response to motion. All 5 modules behaved exactly the same: 1) When applying 5V to Vin the output of the 3.3V regulator gave 3.3V. Good! 2) Then the output went high for a few seconds. Also good, proves that the control chip 3) never lifted again despite movement around it as long as I keep my finger within 1 inch of the sensor on either side. An inch is NOT seven meters. NOT GOOD. It seems that the HF generator is not working very well. TO FAIL. I have to give credit to the developer for innovative thinking in remapping the IR sensor IC for this function. It is a pity that the power of the generator is too small to fulfill the purpose of the goods.
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