Habit Tracker

• Simple habit tracker that displays 7 days x 14 weeks
• After 14 weeks it refreshes to show the next 14 weeks
• Exposes a simple web app that displays the whole calendar year
• Saves data in simple json file: {"2025-01-01": 1}

habit.mp4

systemd file

[Unit]
Description=Habit Tracker Web Application
After=network.target pigpiod.service
Requires=pigpiod.service

[Service]
Type=simple
User=username
WorkingDirectory=/home/username/habitTracker
ExecStart=/usr/bin/python3 /home/username/habitTracker/habit.py
Restart=always
RestartSec=3
SupplementaryGroups=spi gpio

[Install]
WantedBy=multi-user.target

BOM

1. Raspberry Pi Zero W
2. Waveshare 2.13 in e-ink
3. $4 acrylic sheet
4. $1-$2 in nuts and bolts