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How it works

This script is inspired by BenRoe's rpi-magic-mirror-eink, but is fully implemented in python.

The python script uses pyppeteer (Python implementation of Chromium's instrumentation API) to take a screenshot of a website (usually a locally running instance of MagicMirror²) and then renders the screenshot on Waveshare's 7.5" 3-color display.

Requirements

  • Raspbian Buster (Python 3.6+)
  • Waveshare 7.5 3-color epaper display
  • Ikea RIBBA frame (13x18cm)

Installation

  • Enable the SPI is enabled by uncommenting the following line in /boot/config.txt: 
    dtparam=spi=on
  • Install some packages: 
    sudo apt update && sudo apt install git python3.7-venv python3-venv libatlas-base-dev -y
# Make sure to check the script before executing the next part! You are about to pipe a script from the world wide web to bash! At least it's not root...
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh | bash
nvm install --lts
  • We need an older version of chrome (as there are problems with the current puppeteer version and Chromium 74):
    • Create a sources list for stretch: 
      sudo nano /etc/apt/sources.list.d/stretch.list
    • Add the following two lines: 
      deb http://archive.raspberrypi.org/debian/ stretch main ui 
deb-src http://archive.raspberrypi.org/debian/ stretch main ui
    • Add a default apt settings file: 
      sudo nano /etc/apt/apt.conf.d/default
    • Set the default apt release to buster by adding the following line: 
      APT::Default-Release "buster";
    • Install the chromium version from the stretch repo: 
      sudo apt update && sudo apt-get install -t stretch chromium-browser -y
  • Install MagicMirror²: 
    mkdir repos
cd repos
git clone https://github.com/MichMich/MagicMirror
cd MagicMirror
npm install
# Ignore the electron install error (if it occurs) and install the vendor and font packages manually:
npm run install
npm run install-fonts
  • Clone this repository: 
    cd ~/repos
git clone https://github.com/alexrashed/rpi-magicmirror-eink.git
  • Setup the Python environment: 
    cd rpi-magicmirror-eink
python3.7 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
  • Copy the MagicMirror² config, CSS and fonts into the MagicMirror directory: 
    cp -r ./magicmirror-files/. ~/repos/MagicMirror
  • Install the MagicMirror modules: 
    cd ~/repos/MagicMirror/modules
git clone https://github.com/alexrashed/calendar_monthly.git
  • Adjust the config to your needs (set calendars, weather info,...): 
    nano ~/repos/MagicMirror/config/config.js
  • Intall PM2:
    • Install the package globally: 
      npm install -g pm2
pm2 startup
    • Make sure to execute the command which is printed (DO NOT JUST COPY THIS, IT WILL BE DIFFERENT): 
       sudo env PATH=$PATH:/home/pi/.nvm/versions/node/v10.16.3/bin /home/pi/.nvm/versions/node/v10.16.3/lib/node_modules/pm2/bin/pm2 startup systemd -u pi --hp /home/pi
  • Setup the automatic startup on boot for MagicMirror: 
    # Make sure to execute the command which is printed
# Adjust the path (if MagicMirror is not directly in your home)
nano ~/repos/MagicMirror/installers/pm2_MagicMirror.json
# Adjust the path (if MagicMirror is not directly in your home) and replace the command with `node serveronly`
nano ~/repos/MagicMirror/installers/mm.sh
# If your user is not 'pi' checkout these lines before:
# https://github.com/MichMich/MagicMirror/blob/master/installers/raspberry.sh#L223
pm2 start ~/repos/MagicMirror/installers/pm2_MagicMirror.json
pm2 save
  • Setup the automatic startup on boot for the python script: 
    sudo cp ~/repos/rpi-magicmirror-eink/rpi-magicmirror-eink.service /etc/systemd/system/rpi-magicmirror-eink.service
sudo chmod 644 /etc/systemd/system/rpi-magicmirror-eink.service
sudo systemctl enable rpi-magicmirror-eink
sudo systemctl start rpi-magicmirror-eink
sudo systemctl status rpi-magicmirror-eink

Configuration

Currently the script is configured by modifying the global variables at the top of main.py. The cron schedule can be adjusted in the run.sh script.

Resources