ESP32-S3-Zero display on 0.85 inch 128x128 LCD with GC9107 SPI driver, using Arduino_GFX.

This post show steps to using Waveshare ESP32-S3-Zero to display on Waveshare 0.85 inch 128x128 LCD with GC9107 SPI driver, using GFX Library for Arduino (Arduino_GFX)​.

Make sure GFX Library for Arduino (Arduino_GFX) is installed in Library Manager.

Connection:

	GC9107		ESP32-S3-Zero
	---------------------
	VCC			3V3
	GND			GND
	DIN			GP11
	CLK			GP12
	CS			GP10
	DC			GP9
	RST			GP8
	BL			GP7

Code for Arduino_GFX setting:

//========== Arduino_GFX setting ===============================================
#define TFT_DIN	11
#define TFT_CLK 12
#define TFT_CS	10
#define TFT_DC 	9
#define TFT_RST 8
#define TFT_BL	7

#define GFX_BL TFT_BL

// https://github.com/moononournation/Arduino_GFX/wiki/Data-Bus-Class#spi-1
Arduino_DataBus *bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, TFT_CLK, TFT_DIN, GFX_NOT_DEFINED /* MISO */, HSPI /* spi_num */);


//https://github.com/moononournation/Arduino_GFX/wiki/Display-Class#gc9107-ips-lcd-128x128
Arduino_GFX *gfx = new Arduino_GC9107(bus, TFT_RST, 0 /* rotation */, true /* IPS */);
//==============================================================================

Related:
~ Raspberry Pi Pico W (Arduino Framework) display on 0.85 inch 128x128 LCD with GC9107 SPI driver, using GFX Library for Arduino (Arduino_GFX).