
▲ 23 r/CardPuter
So I wanted to drill into my wall but was unsure if there's a wire behind I don't want to cut through but didn't have a sniffer.
I'm now using my CardPuter ADV with literally just a jumper wire on an ADC pin as an antenna... and it can detect electrical fields inside walls!
I can't believe it but: it actually works really well for finding live wires !!! inside walls !!!.
As always, better use a real sniffer but I really like this!
Here's GitHub with .bin and .ino: https://github.com/tinsever/m5-adv-emf-meter
u/Fluid-Ad4391 — 18 days ago