CYB Display and LVGL

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1

Hello I’m trying to implement a minimal demo on my board.
The caracteristics of the board is
ref ESP32-2432022 (CYD)
CPU = ESP32-WROOM-32
Audio Amplifier : FM800A
Driver Touch : CST820
Driver LCD =ST7735
// Data(DB0-DB7)
#define DB0 15
#define DB1 13
#define DB2 12
#define DB3 14
#define DB4 27
#define DB5 25
#define DB6 33
#define DB7 32

// control
#define LCD_CS 17
#define LCD_DC 16 // RS (Data/Command)
#define LCD_WR 4
#define LCD_RD 2
#define LCD_RST -1 // Non utilisé
#define LCD_BL 0 // Backlight

I have checked all the pins : there are correct. A Bare Code ( without any Library ) the display is working well. If I use the TFT-eSPI or Lovyan the display is showing a white screen nothing else.
Has someone has the same problem /Solution with this board?
Thanks a lot

2

Sounds like maybe lcd.invertDisplay(true/false).
which display do you have? 2.8" or 4"? I can send you what works for me. You’ll have to make some changes because yours has a different display chip.
CYD’s can be tough to get started.

3

thx for your reply.
I tried the invertDisplay(true or false) but it do not work. it’s a 2.8".
I would glad to try your code.
Pat

4

OK, I’ll hunt it down and come up with something. I went from the 2.8, to the 4" and now the 7" (soon to get the 10" because it’s like trucks, enough power just isn’t enough)