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

iBOM

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)