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WSAL14448 – 9.7inch e-Paper HAT/en

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Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

Technical overview of the Waveshare 9.7inch e-Paper HAT with IT8951 controller: specifications, Raspberry Pi and STM32 integration, and safe-handling notes.

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Technical overview

  • Resolution 1200 × 825 pixels on a 9.7-inch diagonal
  • Operating voltage 5 V; interfaces USB/SPI/I80/I2C
  • Viewing angle greater than 170°; operating temperature 0–50 °C
  • Full refresh under 1 s; typical refresh power draw 0.6 W
  • No backlight required; last displayed content persists after power-off
  • Connects to the Raspberry Pi 40-pin GPIO header via SPI
  • For Raspberry Pi: enable SPI, install libraries, compile demo code
  • For STM32: choose SPI or I80 depending on pin availability
  • FPC is fragile – reinforcing it with tape during development is recommended
  • Connect all cables before applying power

Commands and examples – verify before use:  

sudo raspi-config
sudo nano /boot/config.txt
sudo make clean && sudo make -j4
make -j4 LIB=LGPIO
make -j4 LIB=GPIOD
sudo ./epd -1.50 0

Notes and version constraints

  • The device does not support hot-plug; verify all connections before powering on
  • The FPC is fragile; additional reinforcement is recommended
  • Developing over USB on Windows requires an NDA with the Waveshare team; currently unavailable for individual users
  • Displaying the same image for extended periods can cause irreversible burn-in; refresh at least every 24 hours
  • Direct sunlight dries out the charged particles – this damage is irreversible
  • After deep-sleep mode, the software must re-initialize the display
  • The VCOM value printed on the FPC must be passed as a parameter

Source and revision record

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