Peristaltic-Pump

Problem

Peristaltic perfusion pumps are well suited for use in a bioreactor, but current designs are expensive, have limited capacity, not readily scalable, lack real time feedback, and are complicated to configure with high granularity.

Solution

We are building a cost effective multichannel peristaltic perfusion pump system with noncontact inline flow sensors that can be used in a bioreactor. The pump will provide real-time feedback and the user must be able to program each pump to a different speed.

Software

Deployment

Open a terminal and cd to a new, empty directory

• mkdir peristalticPump

• cd peristalticPump

Clone the repository into that dir

• https://github.com/fmhall/Peristaltic-Pump.git

Install the necessary modules and requirements, either in a virtualenv (suggested) or on your OS's built in Python3 instance. For Linux and Mac:

• python3 -m pip install --user virtualenv
• cd Peristaltic-Pump
• python3 -m virtualenv env
• source env/BIN/activate

Install the modules listed in requirements.txt

• pip install -r requirements.txt

• On windows:

  • py install -r requirements.txt

Launch interface

• python3 GUI.py

Architecture

/Arduino-slaves

Arduinos run low-level C code to listen for inputs, parse the inputs, and output corresponding commands to each motor.

/RaspberryPi-master

The Raspberry Pi launches a Graphical User Interface (GUI) built with Python 3, using the tkinter framework for display and control. communicator.py takes in the input from the GUI, converts it to commands, and sends those through a serial connection to the Arduinos.