The functions I needed to do with this pump are reached, and I don’t have time to continue.

Because I needed the pump to drop a defined quantity of liquid to a tank, and near the tank is always wet, so it is not safe to put the electronics there nor I wanted to make 3 meters of the tubing. So I decided to make the stepper separated with a long wire.

I shared this project, because I don’t want to keep the information until the project is complete to share it, and not all people need the box as mine, or the final design, but the code and the schematics are enough for many to start this project, some will make it quickly and even better than mine, The idea here is to make a, let’s call it OSP2 (Open Source Peristaltic Pump as the title), available and keep providing updates, and maybe getting help from people with different skills and experiences. As professional pumps are very expensive, I wanted to share this project to allow people with a small budget but in need of a precision dosing pump for their research, watering plants, aquariums, hobby or any other liquid pumping applications. So comment, share, suggest optimizations, try it and let us all know what you think ;)