4inch TFT display User Guide

Product Description

Name	Parameter
Display Color	RGB 65K color
SKU	have touch screen: MSP4021
SKU	have no touch screen: MSP4020
Screen Size	4.0(inch)
Screen Type	TFT
Driver IC	ST7796S
Resolution	480*320 (Pixel)
Module Interface	4-wire SPI interface
Active Area (AA area)	55.68x83.52 (mm)
Module PCB Size	61.74x108.04(mm)
Touch Screen Type	resistive touch screen
Touch IC	XPT2046
VCC power voltage	3.3V~5V
Power Consumption	TBD
Rough Weight(Package containing)	have touch screen: 71g
Rough Weight(Package containing)	have no touch screen: 58g

Number	Pin Label	Description
1	VCC	5V/3.3V power input
2	GND	Ground
3	CS	LCD chip select signal, low level enable
4	RESET	LCD reset signal, low level reset
5	DC/RS	LCD command / data selection signal, high level: command, low level: data
6	SDI(MOSI)	LCD SPI bus write data signal
7	SCK	LCD SPI bus clock signal
8	LED	Backlight control, high level lighting, if not controlled, connect 3.3V always bright
9	SDO(MISO)	SPI bus read data signal, if you do not need to the read function, you can not connect it
(The following is the touch screen signal line wiring, if you do not need to touch function or the module itself does not have touch function, you can not connect them)
10	T_CLK	Touch SPI bus clock signal
11	T_CS	Touch screen chip select signal, low level enable
12	T_DIN	Touch SPI bus input
13	T_DO	Touch SPI bus output
14	T_IRQ	Touch screen interrupt signal, low level when touch is detected

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