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- Mon Dec 20, 2021 8:33 pm
- Forum: Hardware
- Topic: ESP32 not giving correct readings unless GND is connected to earth
- Replies: 0
- Views: 2740
ESP32 not giving correct readings unless GND is connected to earth
I am trying to measure the sound level using the code by Ivan Kostoski from GitHub and I observed a strange phenomenon. Unless I connect the GND pin to actual Ground (earth), I am not getting the correct values. I am using ESP32 dev kit v4 and an INMP441 breakout board. My background is not Electron...