Is someone know how to connect car knock sensor to ESP32 and get some vibration data? Simple connection to analogPin doesn’t work :/
Unfortunately, I never tried something like that.
Is that an ESP32-compatible sensor? Can you share a link to the sensor?
Many thanks for your reply.
I have build very simple rectifier from 4x LED without resistors and I have got some results ;P
I’m curious it is possible to build circuit for measuring ac from sensor?
Link with sensor