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Pi Pico capacitive proximity sensor test
After giving up on the Pi 4, another attempt with the capsense library of CircuitPython on a Pi Pico. The resistor has a few mega ohms; with the correct threshold (which changes according to environment ...) one gets quite a good reading.
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After giving up on the Pi 4, another attempt with the capsense library of CircuitPython on a Pi Pico. The resistor has a few mega ohms; with the correct threshold (which changes according to environment ...) one gets quite a good reading.