LVGL touch screen 2.8 and 30 pins ESP32 DevKit not display Hello World

Q&A Forum › Category: ESP32 › LVGL touch screen 2.8 and 30 pins ESP32 DevKit not display Hello World

Evzen Supler asked 4 weeks ago

Hi Sandra,
My ESP32-2432S028R works well,

I try a standalone module without an integrated ESP32 module from Alliexpres 
with an external my 30pins ESP32 DevKit V1
module with the same Hello World program will only display a blank screen with 
no black text.

pin connection according to the text in the book

T_IRQ GPIO 36
T_OUT GPIO 39
T_DIN GPIO 32
T_CS GPIO 33
T_CLT_CLK GPIO 25
SDO (MISO) GPIO 12
LED GPIO 21
SCK GPIO 14
SDI (MOSI) GPIO 13
D/C GPIO 2
RESET EN/RESET
CS GPIO 15
GND GND
VCC 5V (or 3.3V)*

Evzen

Question Tags: LVGL 2.8" touch screeen without Integrated ESP32 moudle

3 Answers

0 Vote Up Vote Down

Sara Santos Staff answered 4 weeks ago

Hi.
Do you know more details about your display? But it uses a different driver?
Regards,
Sara

0 Vote Up Vote Down

Evzen Supler answered 3 weeks ago

Hi Sandra, Although your answer was not enough for me, because I was working with a tested ESP32, so I think it was a driver update, but thank you for the answer. But the cause was incorrect wiring between the module and ESP32. Faulty connectors that slipped out of the contacts. After replacing the cables, everything works correctly with the new ESP32 30 pins.
Have a nice day. Evžen

0 Vote Up Vote Down

Sara Santos Staff answered 3 weeks ago

Great!
Thanks for letting me know.
I’m glad everything is working as expected now.
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara