hgptamn wrote:Getting an official answer from Espressif, they do plan on fixing the factory calibration in the near future
I'm assuming since you get a reply in January and you are posting in February that the fix date is June 1, 2018? Thats a long time to wait for something that should have worked on day one.
ESP_Dazz wrote:Hi everyone, the ADC calibration issue has actually been addressed in the esp-idf.
Can you comment if there will there be a revision number or indication printed on the chips that have this new factory calibration so if/when we order we can be assured to get the correct part? Right now it is almost impossible to mass produce anything with a ESP32 chip using the analog inputs. Manually calibrating each chip is not a viable option other then for testing or one-off situations.