The examples in this guide are no longer supported. Please check out the Adafruit eInk Display Breakouts guide for CircuitPython and Python usage: https://learn.adafruit.com/adafruit-eink-display-breakouts
Everything compiled correctly, but I get no activity on the screen
The default driver compile is for a COG 1 (Computer On Glass, version 1). Your RePaper screen may be a COG 2.
You can check this my carefully lifting the display and looking on the back of it. Look for a barcode starting with "TEM" or "VEM".
If the seventh character of the barcode is 'B', then you have a COG 2. Follow these instructions for building the driver:
You can check this my carefully lifting the display and looking on the back of it. Look for a barcode starting with "TEM" or "VEM".
If the seventh character of the barcode is 'B', then you have a COG 2. Follow these instructions for building the driver:
make rpi-clean make COG_VERSION=V2 rpi sudo make COG_VERSION=V2 rpi-install sudo reboot
After reboot make sure it is showing a "COG 2"
% cat /dev/epd/panel EPD 2.7 264x176 COG 2 % echo C > /dev/epd/command
make bb-clean make COG_VERSION=V2 bb make COG_VERSION=V2 bb-install reboot
I can't get the eInk Display service to start on my Pi
See https://forums.adafruit.com/viewtopic.php?f=22&t=105673 for a possible fix!
Page last edited March 08, 2024
Text editor powered by tinymce.
