Interfacing Atlas Scientific Ph Sensor with Arduino via UART/I2C
Circuit Construction | reef-pi Guide 6: pH Monitoring | Adafruit Learning System
Diagram showing the sensors connected to the data logger system. Such... | Download Scientific Diagram
It finally turned up - Atlas Scientific EZO ph module - not too expensive at £38 and has all sorts of useful features to ensure good readings. Been reading the datasheet and
I bought ezo i2c circuits for ph and ec from atlas-scientific. Other than the pic18 mcu, what are these other chips on board? Elaboration in comments. : r/AskElectronics