This will also reduce the cost to reproduce the system: “[It’s] printed with PETG, the same thing used to make two-litre drink bottles, since it is food-safe; same as all the hoses and fittings. The water pump is actually a standard RV/caravan water pump.”
A Raspberry Pi 3 powers the system, with regular upgrades made to the Pi part of it. “I use the webiopi web interface program to provide the backbone for the system and the control software is written in Python,” reveals Chris. “I use the pigpio library for the I2C I/O and to control the waveform timing for a custom controller board that I designed to work with the Pi.”
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
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