theonecurly/greyarea-old

Sous-Vide Controller For The Raspberry Pi Zero

GreyArea

Configuration files, control software, and web based user interface for a home sous-vide imersion cooker. Configuration files and paths assume this will be running on Raspbian, with minor changes any Linux distro will work.

Dependencies

• Python3
  • Flask-SocketIO
• PyBind11 https://github.com/pybind/pybind11

Hardware

• Raspberry Pi Zero (running Raspbian)
• SRD-05VDC-SL-C Relay
• DS18B20 One-wire temperature sensor

Software Setup

Automatic (Raspbian)

This is a work in progress, the setup script is not complete.

1. Clone this repository to the pi user's home folder (/home/pi).
2. Run ./setup.sh This will automatically download python, python modules, nginx, supervisor, and pybind11, build the program (this may take a while on the zero), and start the service.
3. Go to the pi's IP address in a web browser and the control page should load.

Manual (Advanced)

1. Clone the repository.
2. Clone PyBind11 to ./cpp
3. Make sure all other dependencies are installed. Virtual wrappers are recommended.
4. Build the control program in ./cpp

• cd ./cpp/build
• cmake ..
• make

5. Run ./www/greyarea/app.py

• The web interface will available on port 5000

The defualt configuration uses Gunicorn to serve the flask application, Nginx to reverse proxy, and Supervisor to kick off and watchdog Gunicorn. None of that is strictly necessary as you can run the python command on boot and access the web interface over port 5000, but it does make it a little easier to use.

Hardware Setup

License

MIT

greyarea-old's Issues

Crash on init

A segmentation fault occurs during the init process. Most likely during sensor setup.

Multiple copies of Control being created

Gunicorn continually gives this output [CRITICAL] WORKER TIMEOUT, kicking off a new worker every few seconds. Every time it does this a new Control object is created and somewhere along the way the connection to the GPIO and temperature sensor breaks.

Setup Script

Add a script to link all the files in config to their respective locations and add it to the installation instructions.