Distillery

This software is intended to be run on a raspberrypi, with two hats, attached to a continuous run distillation appartatus. The goals are to provide:

• a graph of temperatures along the fractionating column
• wash input rate control
• output valve control based on a target temperature at a target location

Example Screenshot

Hardware

Electronics

• A raspberryPi
• Motor Controller HAT
• Analog to Digital HAT
• a continuous run distillery

setup

On the PI

edit /etc/rc.local add the lines:

sudo touch /var/log/distillery.log
sudo chmod 777 /var/log/distillery.log
sudo python /home/pi/code/distillery/server.py > /var/log/distillery.log &

reboot the pi

python env

• install pyenv curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash
• install python

  pyenv install 3.7.3
  pyenv virtualenv 3.7.3 distillery
  pyenv activate distillery
  pip install -r requirements.txt
  

• create the file scripts/.env and inside it add:

install motor hat library

git clone https://github.com/adafruit/Adafruit-Motor-HAT-Python-Library.git
cd Adafruit-Motor-HAT-Python-Library
sudo apt-get update
sudo apt-get install build-essential python-dev python-pip
sudo python setup.py install

install AD hat library

# setup C library
sudo apt-get install automake libtool
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.50.tar.gz
tar zxvf bcm2835-1.50.tar.gz
cd bcm2835-1.50
autoreconf -vfi
./configure
make
sudo make check
sudo make install

# setup python library
sudo apt-get install git build-essential python-dev
cd ~
git clone https://github.com/fabiovix/py-ads1256.git
cd py-ads1256
sudo python setup.py install

enable the hardware to recognize the i2c device

modify /boot/config.txt by appending

dtparam=i2c1=on
dtmparam=i2c_arm=on