In this video, I will show you how to use the ESP32's built-in calibration solution. It is very easy to use: no extra components and no extra code.
I will show you how it works and verify the results with an ESP32 “classic” and an ESP32 S2 Mini.
0:00 Introduction
1:10 The AnalogRead() problem
2:59 AnalogReadMilliVolts()
3:25 Test setup
4:20 Test results
6:07 Conclusion
Arduino test code:
https://drive.google.com/file/d/1Y7Uk4z7_rprdi5Z3k-j9_wCo4Yu6CEjz
