Arduino_GFX Settings for 3.5" Parallel RGB Display

benlye · August 2023

I've recently bought a few Elecrow ESP32 Displays. I've been getting them to work with various Arduino graphics libraries and have found several working configurations.

This configuration works for me with the 3.5" Parallel RGB display using the latest Arduino_GFX library:

#define GFX_BL 46

Arduino_DataBus *bus = new Arduino_ESP32PAR16(
    45 /* DC */, GFX_NOT_DEFINED /* CS */, 18 /* WR */, 48 /* RD */,
    47 /* D0 */, 21 /* D1 */, 14 /* D2 */, 13 /* D3 */, 12 /* D4 */, 11 /* D5 */, 10 /* D6 */, 9 /* D7 */,
     3 /* D8 */,  8 /* D9 */, 16 /* D10 */, 15 /* D11 */, 7 /* D12 */, 6 /* D13 */, 5 /* D14 */, 4 /* D15 */);

Arduino_GFX *gfx = new Arduino_ILI9488(bus, GFX_NOT_DEFINED /* RST */, 0 /* rotation */, false /* IPS */);