Python + Bash with a Raspberry Pi and Waveshare's 4.2in ePaper display and ePaper library, using Spotipy for track info, OpenWeathermap for weather info, and Pillow to generate/display image.

• main.py only engages with ePaper functionality after determining the availability of Waveshare's epd library.

python3 main.py --clock		# push image to ePaper or save local .png every ~3 minutes most of the day 
python3 main.py --local		# generate local test_output/clock_output.png 
python3 main.py -v 		# enable STDOUT logging

• launch_epaper.sh is designed to run main.py indefinitely.

./launch_epaper.sh --clock	# push image to ePaper or save local .png every ~3 minutes most of the day 
./launch_epaper.sh --local	# generate local .png every 60 seconds
./launch_epaper.sh -v 		# enable STDOUT logging

• auth_update.py is also designed to run indefinitely and periodically updates the local branch to the origin every 15 minutes and can be added as a cron job.

• We presume you have a headless Raspberry Pi (I use a Zero W 2) with Waveshare's 4.2inch ePaper display attached via GPIO.
• Waveshare provides a set of instructions in the 'Hardware/Software' setup tab under the setup tab to install the libraries required to drive the display, follow that guide, enable SPI interface in raspi-config, and install the software below as su.

  •   sudo apt-get install git python3-pip python3-pil python3-numpy imagemagick
      sudo pip3 install RPi.GPIO spidev spotipy requests

• Clone Waveshare Examples and Python Libraries, install setup.py and test epd_4in2_test.py

  •   sudo git clone https://github.com/waveshare/e-Paper
      cd e-Paper/RaspberryPi\&JetsonNano/python
      sudo python3 setup.py install
      cd examples
      sudo python3 epd_4in2_test.py

• Clone this repository, and alter config/keys.json to include one or two Spotify User's id and secret generated from Spotify's Create App page and a free OpenWeatherMap token
• Run main.py and pass in returned google url into terminal to sync Spotify key to project.
• Modify e-Paper/launch_epaper.sh to point to the correct main.py path.
• call ./launch_epaper.sh on reboot via cron or rc.local