e-Ink Clock

This is the source code used for building a DIY clock using Inky's wHAT e-Ink display.

Test

poetry install
poetry shell
python clock.py debug

It shows the rendered image like this:

Setup

I used Raspberry Pi Zero W so I had to solder the header pins and then connect it to the display. There are a few tutorial for it, it's easy. I also installed a minimal Pi OS on my Raspberry Pi and connected to it using SSH but there are other ways to work with your Pi.

To load weather information you need to:

1. Sign up with open weather API to get your wather-api-key. It's free.
2. Use Google map to get your location latitude and longitude.

Then deploy the script on your Raspberry Pi:

1. Install Inky's: curl https://get.pimoroni.com/inky | bash.
2. Install dependencies: sudo pip install typer (sudo is important because we use the root crontab to schedule the script).
3. Copy clock.py and fonts folder (or only the used font in the script) to your Pi.
4. Setup cron to run it every minute:
   • sudo crontab -e
   • Add this line at the end of the opened file and save it: * * * * * python {clock.py-absolute-path} -- {weather-api-key} {latitude} {longitude} (don't forget --, otherwise negative numbers for lat and long parameter wouldn't work)
5. You've got a clock and a script that can update its display. Limitation is your imagination!