I am a fanatic ESP32 mini user (MH ET LIVE or Wemos/Geekcreit D1 mini/WEMOS TTGO Mini D1 ESP32) because of its compact size.
But i am experiencing major issues with the huge tolerances on the ADC's accuracy. Analog sensor measurements are way too inaccurate for serious measurements. At 1.5 V the ADC input can register from 1.3 tot 1.6volt. This is a huge problem for temperature sensing etc etc.
Are there higher grade boards out there with the ESP32 chips that measure analog voltage very accurately ?
![Image](https://preview.redd.it/1u4sjx0w77621.jpg?width=1000&format=pjpg&auto=webp&s=1b42827050f41228b23b8601d02962e6e0565421)