I decided to use cheaper peristaltic pump dosing heads that can be found: https://www.amazon.com/dp/B00HHRRDGS
However, this pump does not have a built-in I2C functionality, I think. Thus, how can I properly wire these peristaltic pumps on amazon so they properly connect to the Rasberry Pi and communicate I2C as I believe the ones in the Automated Hydroponic System do? Do I need to purchase some kind of circuitboard to make this possible? I hope to hear back from you soon!