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Buffer pH adjuster

This code accompanies the 'Buffer pH adjuster' tutorial at To use this code, you will need necessary accompanying hardware (listed in full detail on the tutorial page). This code allows you to build a project that monitors the pH of a solution, and adjusts it automatically by dispensing from an acid or alkali reservoir, to the pH value you have set.

The code is run once a day for calibrating the pH meter, and the is the main code for the project.


Running the code

Type sudo python to run the calibration code, and sudo python to run the main code. For more details, see the 'Buffer pH adjuster' tutorial at