ESP_PANEL_LCD_RGB_IO_DATAx pins mapping to display RGB pins

[wavejaco]

For a custom board, the GPIO pin layout is specified in the ESP_Panel_Board_Custom.h file. These pins are named ESP_PANEL_LCD_RGB_IO_DATA0 up to ESP_PANEL_LCD_RGB_IO_DATA15. For a board such as the Waveshare ESP32-S3 4.3 inch display module, the LCD pin layout is described in terms of R, G and B pins. Below is an extract from the above site:

How do these pins (R3-R7, G2-G7 and B3-B7) map to the pins ESP_PANEL_LCD_RGB_IO_DATAx (x = 0 to 15) in ESP_Panel_Board_Custom.h?

[Lzw655]

Hi @wavejaco,

Sorry for the delay. The ESP32-S3 only supports 16-bit RGB565 and 8-bit RGB888. Typically, we connect a 24-bit RGB888 LCD by only using the high bits, as illustrated in the table below.

RGB888 Bit	RGB IO	LCD Bit
Bit 0	-	B0
Bit 1	-	B1
Bit 2	-	B2
Bit 3	DATA0	B3
Bit 4	DATA1	B4
Bit 5	DATA2	B5
Bit 6	DATA3	B6
Bit 7	DATA4	B7
Bit 8	-	G0
Bit 9	-	G1
Bit 10	DATA5	G2
Bit 11	DATA6	G3
Bit 12	DATA7	G4
Bit 13	DATA8	G5
Bit 14	DATA9	G6
Bit 15	DATA10	G7
Bit 16	-	R0
Bit 17	-	R1
Bit 18	-	R2
Bit 19	DATA11	R3
Bit 20	DATA12	R4
Bit 21	DATA13	R5
Bit 22	DATA14	R6
Bit 23	DATA15	R7

[lboue]

@wavejaco Did it work?

[wavejaco]

@wavejaco Did it work?

My apologies for the late reply. Yes, this worked perfectly. Thanks.