We are using the ADC Converter on an Espressif ESP32-S3-WROOM-1 with the IDF-Library V5.4. Here we see an offset in the acquired values, as in the table below.
Measured / ESP-ADC voltage
1,046V / 1,000V
0,8466V / 0,800V
1,202V / 1,150V
2,060V / 2,000V

We followed the calibration guidelines in the ...