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phmeter

Open source design of a battery powered pH meter

LCD screen (2 lines) (8 pins).
Rotary push button (3 pins).
RJ-12 connector to a master.
ATMEGA32U4.
64 Mbit memory ISP (available version).
2 pumps (only use in 12 V power supply mode).
4 I/O 12 V.
Battery charger.
pH measurement.
Elecrtical conductivity measurement.
2 probes temperature sensors.

BOM

Cloning the project

In order to clone it use:

git clone --recurse-submodules https://github.com/Hackuarium/phmeter

To update the submodules:

git submodule update --recursive --remote

Last update: 04/08/2021

To Do

Check I2C communication. (created branch i2c_communication 04212022)
Equation for pH. (in process)
Equation for EC. (in process)