Hello Arduino community,
I have bought two e-paper displays with 7.5 inches (four grayscales, not the color). One was from Eckstein the other was a noname display from Aliexpress has no special designation. The one from Eckstein is a GooDisplay GDEY075T7, the one from Aliexpress has no special designation. Both ribbon cables are labeled the same: FPC-C001 21.08.30 HB. So I think it is the same display.
Unfortunately I can't get both to work. I am using the Goodisplay DESPI-C02 board. You have to set a resistor on the board using a switch, the instructions say which switch setting is required for which display. Unfortunately, my display does not appear in the manual, only one with a very similar designation: GDEW075T7. Is that the Promblem? I have tested both.
As library I use GxEPD2 from @ZinggJM.
The Code i use is GxEPD2_Example.
The board is connected to the ESP32 as follows:
CS = 5, DC = 14, RST = 15, BUSY = 4, SCK (SPI Clock) = 18, SDI = 23. And of course 3,3 V and GND.
I have commented out the line for the display:
GxEPD2_BW<GxEPD2_750_GDEY075T7, GxEPD2_750_GDEY075T7::HEIGHT> display(GxEPD2_750_GDEY075T7(/*CS=5*/ 5, /*DC=*/ 14, /*RST=*/ 15, /*BUSY=*/ 4)); // GDEY075T7 800x480, UC8179 (GD7965).
This and:
#include “GxEPD2_display_selection.h”
are the only lines I have commented out
In the GxEPD2_display_selection_new_style.h file it says FPC-C001 20.08.20 for the GDEY075T7 display, what do the last digits mean, is this the production day, in my case it says 21.08.30. Is that why mine isn't working?
Maybe @nicoh88 can help? He had a related problem.
Maybe someone has some advice for me, or has already used the same display successfully. Best regards