Search found 2 matches

by ats1080
Wed Aug 28, 2019 4:55 pm
Forum: Hardware
Topic: ADC VRef calibration eFuse
Replies: 3
Views: 1945

Re: ADC VRef calibration eFuse

Thanks for the info. I think I'll skip trying to overwrite the eFuse, seems more effort than it's worth. Looks like I can also use the ESP-IDF you disable the eFuse check and force the esp_adc_cal_characterize function to use the VREF parameter, but that also seems like more effort than it's worth. ...
by ats1080
Tue Aug 27, 2019 5:01 pm
Forum: Hardware
Topic: ADC VRef calibration eFuse
Replies: 3
Views: 1945

ADC VRef calibration eFuse

I got a Lolin D32 and I'm trying to read the battery voltage with an Arduino sketch. It's pretty close, but seems like it's a bit more inaccurate than it should be. After hours of reading about the calibration process I came to the conclusion that the board I got came with the ADC VRef calibration e...

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