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Raspberry Pi 4.3inch HDMI LCD (B) User Guide

Introduction

4.3inch, 800x480, Capacitive Touch Screen LCD, HDMI interface, Supports Multi mini-PCs, Multi Systems

Features

  • IPS screen, 800x480 hardware resolution, configurable by software (up to 1920 x 1080)
  • Supports popular mini PCs such as Raspberry Pi, BB Black, Banana Pi, as well as general desktop computers
  • When works with Raspberry Pi, supports Raspbian/Ubuntu/Kali/Retropie/WIN10 IOT, driver free
  • When work as a computer monitor, supports Windows 10/8.1/8/7, five-points touch, and driver free
  • Multi languages OSD menu, for power management, brightness/contrast adjustment, etc.
  • 3.5mm audio jack, speaker connector, supports HDMI audio output


How to use

Working with Windows PC

  • Turn on the backlight switch on the backside of LCD
  • Connect Touch interface of LCD to USB port of PC
  • Connect HDMI (Display) interface of LCD to HDMI port of PC
  • Connect earphone to HP interface or 8Ω 5W Speaker to Speaker interface of LCD if audio output is required.
Hot-Plug isn't supported by some PC, you can try to restart if LCD doesn't display after connecting

Working with Raspberry Pi

  • Download lastest Raspbian image from Raspberry Pi website
  • Write the image to SD card. (refer to RPi Image Install about how to write image)
  • After writing, open and modify the /boot/config.txt file, which located at root directory (BOOT) of SD card, append these lines to config.txt file
max_usb_current=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
【Note】There should not be spaces in both sides of equal-sign.
If the LCD cannot work with statements above when working with Pi 4, you can comment/remove statement dtoverlay=cv4-fkms-V3D on config.txt file and try again.
  • Connect Touch interface of LCD to USB port of Raspberry Pi
  • Connect HDMI interface of LCD to HDMI port of Raspberry Pi

Configure orientation (Raspberry Pi)

Display rotate

Add line below to /boot/config.txt file

display_rotate=1 #1:90; 2: 180;  3: 270

Save and reboot

sudo reboot
Touch rotate

Raspbian doesn't support touchscreen rotate as display, therefore, we need to rotate touch separately.

  • Install libinput
sudo apt-get install xserver-xorg-input-libinput
  • Create xorg,conf.d directory
sudo mkdir /etc/X11/xorg.conf.d
  • Copy 40-libinput-config file to the folder created
sudo cp /usr/share/X11/xorg.conf.d/40-libinput /etc/X11/xorg.conf.d/
  • Append setting statements to 40-libinput-conf file
sudo nano /etc/X11/xorg.conf.d/40-libinput.conf


【Note】

90 degree: Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"
180 degree: Option "CalibrationMatrix" "-1 0 1 0 -1 1 0 0 1"
270 degree: Option "CalibrationMatrix" "0 -1 1 1 0 0 0 0 1"
  • Save and reboot

Keys


  • Power: Open/Close LCD display (backlight)
  • Menu: Open menu/OK
  • Up/Left: Direction
  • Down/Right: Direction
  • Exit: Return/Exit
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