μniversal fire

pH Probe

Measure pH easily

  • pH
  • pOH
  • mV
  • temperature in Celsius

phProbe

Available on Tindie

Make one with the source code and schematics.

What it is

An ATTiny85 programmed as an I2C slave, a DS18B20 waterproof temperature probe, and a pH probe. It measures pH in the full range of 0 - 14 and optionally compensates for temperature.

Using it

An Arduino-compatible library is provided to make using the probe easy and there is extensive documentation on the use and setup of the device.

There is also a python3 library available for use on the Raspberry Pi. You can find it at the library’s GitHub page.

#include <pHProbe.h>
pH_Probe _pH;

pH = _pH.measurepH();

More Help

If you have any questions, find a bug, or have any suggestions on improvements, go to this project’s GitHub page and submit an Issue or Pull Request.

You can send an email to questions@ufire.co