It is likely that many of us will at some time have experimented with motion detectors. Our Arduinos, Raspberry Pis, Beaglebones or whatever will have been hooked up to ultrasonic or PIR boards whi… ...

7 thoughts on “ Arduino And Wire Detects Metal ” Jan says: October 21, 2020 at 4:18 am Better to use a LC lowpass filter. Then it won’t be nano sec delays. https ...

Well tech tinkerer Joe Desbonnet has whipped up what he dubs "poor man's NFC" using an Arduino, some magnet wire, and any compass-equipped Android smartphone (which is almost all of them).