E-Paper Clock Display

This project displays a digital clock on a Waveshare 2.13" e-Paper HAT display connected to a Raspberry Pi.

Hardware Requirements

• Raspberry Pi (any model)
• Waveshare 2.13" e-Paper HAT
• Proper connection of the HAT to the Raspberry Pi's GPIO pins

Installation

1. Enable SPI interface on your Raspberry Pi:

   sudo raspi-config
   # Navigate to Interface Options > SPI > Enable

2. Install required packages:

   sudo apt-get update
   sudo apt-get install python3-pip python3-pil python3-numpy fonts-dejavu
   pip3 install -r requirements.txt

3. Run the clock:

   sudo python3 epaper_clock.py

Features

• Displays current time in 24-hour format
• Shows current date
• Updates every second using partial refresh for better performance
• Clean shutdown with Ctrl+C
• Centered text layout
• Power-efficient partial updates
• Automatic font detection across different Linux distributions

Notes

• The display will update every second using partial refresh for better performance
• Press Ctrl+C to exit cleanly and clear the display
• The script requires root privileges to access GPIO pins
• The program will automatically find the DejaVu Sans font on most Linux distributions

Troubleshooting

If you encounter a "No module named 'waveshare_epd'" error:

1. Ensure you've installed all requirements: pip3 install -r requirements.txt
2. Try installing the package directly: pip3 install waveshare-epd

If you see font-related errors:

1. Install the DejaVu fonts package: sudo apt-get install fonts-dejavu