A easy configuration shows how to to form one potential divider using an ESP32 S3 processor & one 1k kiloohm resistor. Using placing dual resistances in order, you may decrease an potential amount into a reading right http://theengineerstore.in/products/waveshare-esp32-s3-microcontroller-2-4-ghz-wi-fi-development-board-dual-core-processor-with-frequency-up-to-240-mhz