A 16 bits, two-channels, analog to digital convertion board with galavnic isolation to measure pH and Orp levels in pools and similar environments
This project is based on the original project from Roberto Buti: https://github.com/reef-pi/pH-Board.
This modified version features a double input for simultaneous pH and Orp measurements on the same board, based on the ADS1115 IC.
This board is an ideal companion to the PoolMaster project: https://github.com/Loic74650/PoolMaster.
The 5Volts power supply to this board should be low noise and low drift (sorry no spec).
A alternative (and likely better) routing of the board was performed by @Gixy31 and is available here: https://github.com/Gixy31/ESP32-PoolMaster/tree/main/pH_Orp%20Board%20V2
https://lygte-info.dk/project/ADS1115Library%20UK.html