PCN-2021-021 changed the ESP32-U4WDH from a single core to a double core, with a max speed of 240 MHz instead of 160 MHz. I bought some ESP32-MINI-1 chips last fall, and some in April 2022. They are all single core (according to idf.py utility), but I can run them at 240 MHz. At flash, the features ...

Since this is pretty much the only documentation on burning the eFuse for Two-Point calibration, here is a code excerpt you can run directly on the ESP32 to burn the eFuse once you have completed your measurements. /* Do some measurements here... */ int16_t A1 = round((A1_mean - 278.0f) / 4.0f); int...

Hello! I am designing with the ESP32-MINI-1, and I have two questions regarding the ADC. I have already read the documentation and this thread: https://esp32.com/viewtopic.php?f=19&t=2881 1. Is the ESP32-MINI-1 ADC VREF value calibrated and burned in eFUSE during fabrication? Datasheet does not ment...