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color gdew075c64 800x480 B|Y

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Martin F edited this page Mar 13, 2024 · 2 revisions
  • Size: 800 * 480 7.5 inches. Colors: B/W/YELLOW
  • Class compatible with: GDEW075Z09 B/W/RED
  • Manufacturer: Good display
  • Controller: GD7965 (EK79655)
  • Technical documentation PDF
  • Status: Working (See note below)
  • Full update time: About 15 seconds (Is super slow)
  • Active Size: 163.2 x 97.92 mm / Pixel pitch: 0.205 x 0.204
  • Power consumption of the refresh: 26.4 mW

Note: Any links to Good-Display.com have been removed from this repository, please search for the display model yourself.

gdew075c64 Yellow 3 color. Z9 is the Red version, same controller

Stats before optimization:

Sending a 48000 bytes buffer via SPI
STATS (ms)
3492 _wakeUp settings+send Buffer
2008 update 
5500 total time in millis

After sending full X line buffers in a single SPI transaction

2251 _wakeUp settings+send Buffer
2003 update 
4255 total time in millis

Note: Working. Still some strange effect on the right of the epaper, yellow is kind of getting out from the edge, like if had too much yellow ink. Other than that seems to be working correctly. Proof of concept video

Revision v.1.3 | Firmware for ESP-IDF >= v. 4.3 Documentation written by Fasani Corp. Fasani logo

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