I measuring NTC resistance. But I can measure everything: NTC, carbon resistor, PT100... The problem is that if with ESP32 No.1 I read, for example, 2570, with ESP32 No.2 I read 2640 and with ESP32 No.3 I read 2465..... I read that ESP32 needs calibration, one by one, but for me is impossible to thi...

I made a simple code to analog read on GPIO32 and GPIO33. Well, all is ok... BUT, when I change my ESP32 DEVKIT V1 with another one, values are different. I changed again with another DEVKIT and other values.... Three ESP32 DEVKIT V1 with three different reads on GPIO32 and GPIO33 !!! I checked the ...