4.3inch DSI LCD

Introduction

4.3inch Capacitive Touch Display for Raspberry Pi, 800×480, IPS Wide Angle, MIPI DSI Interface

Features

• 4.3inch IPS screen. 800x480 hardware resolution
• Capacitive touch panel, support 5-point touch
• Supports Pi 4B/3B+/3A+/3B/2B/B+/A+. Another adapter board is required for CM3/3+
• DSI interface, refresh rate up to 60Hz.
• Supports Raspbian/Ubuntu/Kali and WIN 10 IoT, driver free.

User guide

Hardware connection

• Connect the DSI interface of 4.3inch DSI LCD to the DSI interface of Raspberry Pi.
• For easy use, you can fix the Raspberry Pi on the backside of the 4.3inch DSI LCD by screws

Software setting

1) Download image (Raspbian, Ubuntu, Kali, or WIN 10 IOT) from the Raspberry Pi website. https://www.raspberrypi.org/downloads/ 2) Download the compressed file to the PC, and unzip it to get the .img file. 3) Connect the TF card to the PC, use SDFormatter.exe software to format the TF card. 4) Open the Win32DiskImager.exe software, select the system image downloaded in step 2, and click‘Write’ to write the system image. 5) After the image has finished writing, save and quit the TF card safely. 6) Power on the Raspberry Pi and wait for a few seconds until the LCD displays normally. And the touch function can also work after the system starts.

Rotation

To change the orientation of the display, you can modify /boot/config.txt file as below

• Open the file

sudo nano /boot/config.txt

• Add the following code at the end of config.txt

• Rotate 90 degrees

display_lcd_rotate=1 dtoverlay=rpi-ft5406,touchscreen-swapped-x-y=1,touchscreen-inverted-x=1

• Rotate 180 degrees

display_lcd_rotate=2 dtoverlay=rpi-ft5406,touchscreen-inverted-x=1,touchscreen-inverted-y=1

• Rotate 270 degrees

display_lcd_rotate=3 dtoverlay=rpi-ft5406,touchscreen-swapped-x-y=1,touchscreen-inverted-y=1 If you use Raspberry Pi 4, you need to remove the line: dtoverlay=cv4-fkms-V3D

• Save and reboot Raspberry Pi

sudo reboot

Install virtual keyboard

Open terminal and install it by the following command

sudo apt-get install matchbox-keyboard

After installing, you can click Accessories -> Keyboard to open the keyboard.

Resources

External guides

• Woring with Volumio

Software

• Panasonic SDFormatter
• Win32DiskImager
• PuTTY

Drawing

• 4.3inch DSI LCD 3D Drawing

FAQ

Question: What is the maximum brightness of 4.3inch DSI LCD？

Answer: 400LUX

Question: What is the overall thickness of the 4.3inch DSI LCD?

Answer: 8.70mm

Question: Will the 4.3inch DSI LCD automatically turn off the backlight when the system sleeps?

Answer: No, it won't.

Question: What is the working current of 4.3inch DSI LCD?

Answer: The normal working current of raspberry PI 4B alone with 5V power supply is 450mA-500mA； Using 5V power supply raspberry PI 4B+4.3inch DSI LCD maximum brightness normal operating current is 700mA-750mA； Using 5V power supply raspberry PI 4B+4.3inch DSI LCD minimum brightness normal operating current is 550mA-580mA；

Question: How to adjust the backlight?

Answer: You need to remove the resistor and wire the top pad to P1 of Raspberry Pi and control it by PWM. gpio -g pwm 18 0 gpio -g mode 18 pwm gpio pwmc 1000 gpio -g pwm 18 X（X is in range 0~1024, 0: Darkest, 1024: brightest）

Support

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