MOD-LCD2.8RTP

TFT COLOR LCD module with UEXT connector for ESP32-EVB and ESP32-POE

Using MOD-LCD2.8RTP requires non-standard SPI for the display and I2C for the touch screen

The non-standard part of the SPI is the lack of MISO which is Data/Command selection pin (refer to controller's datasheet) which has to be set as output.

UEXT pinout:

UEXT column 1	UEXT column 2	Function
1 - 3.3V	2 - GND	Power pins
3 - NOT USED	4 - NOT USED	UART pins not used
5 - SCL	6 - SDA	I2C pins used for touch component
7 - D/C	8 - MOSI	SPI pins sans MISO used for display
9 - CLK	10 - CS	SPI CLK/CS for display

If you are using I2C, then the RX wire can also be used to control the brightness. This requires midfying the SJ2 jumper. Refer to the schematic around FET1.