Template:4.3inch HDMI LCD B User Manual

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-inout-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