Timetable4Inky

Source code for drawing daily schedules on an e-ink screen.

Running example on M.ICU

Development environment

• Raspberry Pi zero 2w (Raspberry Pi OS 32-bit (Bookworm))
• Pimoroni Inky Impression 7.3" (2025) [e-ink]
• Python 3.12
• Written on Win11

Scripts

• routines.py is where the user defines what to display
• taskTemplates.py defines task presets; each valid task should have an entry here then can be referenced in routines.py
• draw.py contains Renderer classes that draws image output
• scheduler.py calls Renderers to update display on certain timepoints
• display.py is for connecting with the Inky Impression e-ink screen
• uploader.py auto uploads drawn image to a server defined in cfg/upload_config.json
• coords.py are tedious layout coords
• style.py contains text styles used in drawing; needs clean-up
• resources/ include background image, logos, etc.

Dependencies

python3.12 -m pip install numpy pillow requests lunar_python inky
python3.12 -m pip install openai icalendar

p.s. numpy builds super slowly.

For full support of Pillow:

sudo apt install libjpeg-dev zlib1g-dev libpng-dev libfreetype6-dev liblcms2-dev \
libopenjp2-7-dev libtiff-dev libwebp-dev tcl-dev tk-dev

---

Running as service

Assume the project is dropped at /home/pi/Timetable4Inky

sudo nano /etc/systemd/system/inky.service

[Unit]
Description=My Python Scheduler
After=network.target

[Service]
ExecStart=/usr/local/bin/python3.12 /home/pi/Timetable4Inky/scheduler.py
WorkingDirectory=/home/pi/Timetable4Inky
Restart=always
User=pi
StandardOutput=journal
StandardError=journal
Environment=PYTHONUNBUFFERED=1  ; ensures log output

[Install]
WantedBy=multi-user.target

if using venv, replace execstart with:

ExecStart=/home/pi/Timetable4Inky/venv/bin/python /home/pi/Timetable4Inky/scheduler.py

Run service:

sudo systemctl daemon-reexec & sudo systemctl daemon-reload
sudo systemctl enable myscheduler & sudo systemctl start myscheduler

Check stat & log:

sudo systemctl status inky
journalctl -u inky -f