ITDB02-2.4S/zh-cn

概述

ITDB02-2.4S 是一个2.4inch SPI接口的TFT LCD模块，分辨率为320X240，262K种颜色。LCD模块的控制芯片为ILI9341V，它的接口是SPI的，需要6根线（SCK,MISO,MOSI,CS,D/C,RST）来控制。而且，这个模块还包含了micro SD卡接口，带触摸功能。

购买 ITDB02-2.4S (SKU:IM140714002)

特点

• 兼容3.3/5V操作电平
• 自带micro SD卡接口
• 支持用IO口或PWM来控制背光
• 触摸屏

规格

PCB尺寸	44mm X 74mm X 1.6mm
电源	5V DC
驱动IC	ILI9341V
分辨率	320*240

Electronic Characteristics

Parameter	Min.	Typical	Max.	Unit
Power supply	4.5	5	5.5	VDC
Input voltage VinH (Target Voltage = 3.3V)	3	3.3	3.6	V
Input voltage VinH (Target Voltage = 5V)	4.5	5	5.5	V
Input voltage VinL	-0.3	0	0.5	V
Current Consumption	-	40	80	mA

Hardware

Pin Map

Pin	Type*	Description
VCC	P	5V Power supply pin
GND	G	Ground
SCK	I	SPI SCK
MISO	O	SPI MISO
MOSI	I	SPI MOSI
CS	I	Chip Select for TFT
D/C	I	Command or parameter select
RST	I	RESET signal for TFT
LEDA*	I	Backlight control pin
SD_CS	I	Chip Select for SD
T_CS	I	Chip Select for touch function
T_IRQ	O	Interrupt output for touch

• Type: P--Power supply; G--Ground; I--Input; O--Output.
• LEDA: When LEDA is set as high electronic level, the backlight turns on. When it's set as low electronic level, the backlight turns off.

Instruction

1.Touch Function

• Upload 2_4_spi_touch.ino into UNO main board

File:2_4_spi_touch.zip

• Connect ITDB02-2.4S module to UNO according to the table as below:

2.4S pins	UNO pins
VCC	5V
GND	GND
SCK	D13
MISO	D12
MOSI	D11
CS	D10
D/C	D9
RST	D8
LEDA	5V/3V3
SD_CS	D4
T_CS	D2
T_IRQ	D3

• Power UNO mainboard, you can start to draw any line or pattern on the screen.

2.Display the image from micro SD card

• Download the library from this link: https://github.com/adafruit/Adafruit_ILI9340 , then extract it into the directory \arduino\libraries
• Copy the image woof.bmp from the directory Adafruit_ILI9340\examples\spitftbitmap to your SD card, then plug the card into the SD card slot on ITDB02-2.2S LCD module
• Use arduino IDE to open spitftbitmap.ino in the directory Adafruit_ILI9340\examples\spitftbitmap then upload it to UNO main board.
• Select 5V electronic level in the 2.2S LCD module, then use dupont lines to connect UNO and LCD module according to the table as below:

2.4S pins	UNO pins
VCC	5V
GND	GND
SCK	D13
MISO	D12
MOSI	D11
CS	D10
D/C	D9
RST	D8
LEDA	5V/3V3
SD_CS	D4

• Power UNO main board, a picture of dog showed on the display.

Download

Specification for TFT LCD module--File:H24TM84A-spec.pdf

Schematic--File:IM140714002-ITDB02-2.4S-schematic.pdf

Useful Link

https://github.com/adafruit/Adafruit_ILI9340