Product Description：

• 4.3-inch color screen, support 24BIT RGB 16.7M color display, display rich colors
• Support 800x480, the display effect is very clear
• Support 24 bit RGB parallel bus transmission
• Compatible with RGB interface connection of punctual atomic development board and wildfire development board
• It supports the switching between capacitive touch screen and resistance touch screen, and the capacitive touch screen can support up to 5 touch points
• Provides a rich sample program for STM32 platforms
• Military-grade process standards, long-term stable work
• Provide underlying driver technical support

Product Parameters：

• Display Color：RGB888 16.7M (compatible with rgb5665k) color
• Screen Size ：4.3(inch)
• Type：TFT
• Driver IC：None
• Resolution：800*480 (Pixel)
• Module Interface：24Bit RGB parallel interface
• Touch Screen Type：Capacitive or Resistive touch screen
• Touch IC：FT5426(Capacitive touch), XPT2046(Resistive touch)
• Active Area ：95.04x53.86(mm)
• Module PCB Size：105.41x86.41(mm)
• Operating Temperature：-10℃~60℃
• Storage Temperature：-20℃~70℃
• Input Voltage：5V
• IO Voltage：3.3V
• Power Consumption：50mA(The backlight is off), 165mA(The backlight is the brightest)
• Rough Weight(Net weight)：95(g)

Interface Definition：

• ①--Capacitive touch screen circuit
• ②--Resistance touch screen circuit
• ③--Disp resistance
• ④--P2 interface (compatible with atomic RGB interface)
• ⑤--P3 interface (compatible with wildfire RGB interface)
• ⑥--Module ID defines resistance (only for atomic program)

1. Switch touch screen

If you choose to connect the capacitive touch screen, please weld the capacitor touch screen circuit; Select the connection resistance touch screen, please weld the resistance touch screen circuit; If you often need to switch the touch screen, after welding other circuits, only switch the drain resistance in the dotted line box;

2. Precautions for disp resistance welding

When connecting the wildfire development board for use, the disp resistance must be removed, otherwise the screen will not display after the development board is reset; When connected to wildfire i When using the MX6ULL ARM Linux development board, you need to remove the DISP resistor and the three resistors in parallel, otherwise the development board will not run. When connecting atomic development board, f407 minimum system board or esp32 development board, disp resistance must be welded, otherwise the screen will not be displayed.

3. P2 and P3 interface pins are described as follows:

P2 interface (compatible with atomic RGB interface) pin description

Number Pin name Description

• 1 -- VCC5-- (Power input pin（connect to 5V）)
• 2 --VCC5-- (Power input pin（connect to 5V）)
• 3~10 --R0~R7-- ((8-bit RED data pin))
• 11 --GND-- (power ground pin)
• 12~19 --G0 ~ G7-- (8-bit GREEN data pin)
• 20 --GND-- (power ground pin)
• 21~28 --B0 ~ B7-- (8-bit GREEN data pin)
• 29 --GND-- power ground pin
• 30 --PCLK-- (Pixel clock control pin)
• 31 --VSYNC-- (Vertical synchronous signal control pin)
• 32 --HSYNC-- (Horizontal synchronous signal control pin)
• 33 --DE-- (Data enable signal control pin)
• 34 --BL-- (LCD backlight control pin)
• 35 --TP_CS-- (Capacitor touch screen reset pin (resistance touch screen chip selection pin))
• 36 --TP_MOSI-- (Data pin of IIC bus of capacitance touch screen (write data pin of SPI bus of resistance touch screen))
• 37 --TP_MISO-- (Resistance touch screen SPI bus read data pin (capacitance touch screen not used))
• 38 --TP_CLK-- (IIC bus clock control pin of capacitive touch screen (SPI bus clock control pin of resistance touch screen))
• 39 --TP_PEN-- Touch screen interrupt control pin (low level when touch is generated)
• 40 --RST-- LCD reset control pin (effective at low level)

P3 interface (compatible with wildfire RGB interface) pin description

Number Pin name Description

• 1 --TP_SCL-- IIC bus clock control pin of capacitive touch screen
• 2 --TP_SDA-- Data pin of IIC bus of capacitance touch screen
• 3 --TP_PEN-- Touch screen interrupt control pin (low level when touch is generated)
• 4 --TP_RST-- Capacitor touch screen reset pin(enable at low level)
• 5 --GND-- power ground pin
• 6 --BL-- LCD backlight control pin
• 7 --DISP-- LCD display enable pin (enable at high level)
• 8 --DE-- Data enable signal control pin
• 9 --HSYNC-- Horizontal synchronous signal control pin
• 10 --VSYNC-- Vertical synchronous signal control pin
• 11 --PCLK-- Pixel clock control pin
• 12~19 --B7 ~ B0-- 8-bit BLUE data pin
• 20~27 --G7 ~ G0-- 8-bit GREEN data pin
• 28~35 --R7 ~ R0-- 8-bit RED data pin
• 36 --GND-- power ground pin
• 37 --VCC3.3-- Power input pin（connect to 3.3V）
• 38 --VCC3.3-- Power input pin（connect to 3.3V）
• 39 --VCC5-- Power input pin（connect to 5V）
• 40 --VCC5-- Power input pin（connect to 5V）

How to connect the development board