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WSAL15598 – 13.3inch 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

The 13.3-inch e-Paper HAT (IT8951) is a 1600×1200 e-ink display for Raspberry Pi and other hosts via USB, SPI or I80. It runs on 5 V, supports 16 grayscale levels, and enables partial refresh.

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Technical overview

  • Resolution: 1600 × 1200 pixels; active area approx. 270.40 × 202.80 mm; pitch 0.169 mm
  • Controller: IT8951; interfaces: USB / SPI / I80; operating voltage 5 V
  • Full refresh time under 1 s; refresh power approx. 1.2 W, standby approx. 0.1 W
  • Operating temperature range: 0 to 50 °C; storage: −25 to 70 °C
  • Raspberry Pi SPI wiring: CS to pin 8, RST to pin 17, HRDY to pin 24, plus MISO/MOSI/SCK accordingly
  • On Raspberry Pi the SPI interface must be enabled via raspi-config; when using lg/gpiod also add dtoverlay=spi0-0cs to /boot/config.txt
  • Demo source code is obtained via a 7z archive or GitHub; by default the BCM library is used, with LGPIO or GPIOD as alternatives
  • When running the demo, read the VCOM value from the FPC and pass it as a parameter, e.g. “sudo ./epd -1.50 0”

Commands and examples – verify before use:  

wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.60.tar.gz
tar zxvf bcm2835-1.60.tar.gz
cd bcm2835-1.60
./configure
make
sudo make check
sudo make install
wget https://github.com/joan2937/lg/archive/master.zip
unzip master.zip
cd lg-master
make
sudo make install
sudo apt-get update
sudo apt install gpiod libgpiod-dev
sudo raspi-config
sudo nano /boot/config.txt
sudo reboot
sudo apt-get install p7zip-full
sudo wget https://files.waveshare.com/upload/8/80/IT8951_20200319_Release.7z
7z x IT8951_20200319_Release.7z -O./IT8951

Notes and version constraints

  • The source contains placeholders such as {{{name3}}} and {{{userDefinedInfo}}}; these values are unclear and require human confirmation.
  • The VCOM value must be read individually from the FPC; a fixed value must not be assumed.
  • USB development on Windows requires signing an NDA with the Waveshare team; according to the source this is currently not available to individual users.
  • At temperatures below 25 °C color deviation may occur; stabilize the device at 25 °C for 6 hours before refreshing.
  • Leaving the same image on screen for extended periods can cause irreversible burn-in; refresh at least every 24 hours.
  • Direct sunlight dries out the charged particles; UV protection is required for outdoor use.
  • Hot-plugging is not supported; connect all cables before powering the device.
  • The FPC and glass panel are fragile; reinforcing the FPC with tape is recommended during development.

Source and revision record

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