GxEPD2 and Waveshare esp32 + 7.5'' V2 BW : no display

[journetjp]

Hello,

I'm trying to get GxEPD2 to work with my Waveshare setup:

• WS ESP32 board
• 7,5'' v2 black and white 800x480

(putting Amazon links as I bought it there, it's not ad...)

the Waveshare sample provided with their repository is working fine (the "Demo code" link in their ESP32 wiki page )

I tried several examples from GxEPD2 libray, but the screen remains always blank. I found that someone seemed to have had the same issue, so I tried to re-use the init line:

GxEPD2_BW<GxEPD2_750_T7, GxEPD2_750_T7::HEIGHT> display(GxEPD2_750_T7(/*CS=*/ 15, /*DC=*/ 27, /*RST=*/ 26, /*BUSY=*/ 25));

in the GxEPD2_WS_ESP32_Driver.ino example, but it doesn't do anything.
According to the wiki page of the WS ESP32, it appears to be the correct pins.

Any idea of what I should look to make it work ? It's most probably that I'm doing something wrong, I just don't know how to spot it.

thanks
JP

EDIT1: after some research, my ribbon is marked "WFT0583CZ61", which according to this page , is equivalent to Good Display GDEW075T7, which correspond to "GxEPD2_750_T7", class driver I used

[journetjp]

ok, I solved my issue.

Thanks to this comment from /u/ZinggJM, I discovered that the correct link for Espressif package in Arduino IDE is https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json and not the one from Espressif website