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WSAL14300 – 5inch HDMI LCD (H)/en

Aus JW Tech Wiki

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The 5-inch capacitive touch screen LCD (H) with 800×480 resolution and HDMI interface works as a monitor for PCs, Raspberry Pi, RDK X3, or Jetson Nano. It supports various operating systems and includes a multi-language OSD menu.

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Technical overview

  • Display: 5-inch capacitive touch screen, hardware resolution 800 × 480
  • Touch: 5-point capacitive, tempered glass panel rated up to 6H hardness
  • Interfaces: USB for touch, HDMI for video/audio, 3.5 mm headphone jack for audio output
  • Operating systems (PC): Windows 11/10/8.1/8/7; VGA operation requires a Mini-HDMI-to-VGA cable (sold separately)
  • Raspberry Pi: Supports Raspberry Pi OS, Ubuntu, Kali, and Retropie; requires config.txt settings
  • OSD menu: Multi-language, used for brightness, contrast, and power management
  • Power: Flickering may occur if USB power is insufficient; an external 5V/2A supply via the DC port is recommended
  • Working current: Approximately 400 mA at 5 V
  • Button layout: Power (on/off), Menu (open/confirm OSD), Up/Left and Down/Right (direction), Exit (return)
  • RDK X3: Works with Ubuntu 20.04; connect after booting and reboot if no image appears

Commands and examples – verify before use:  

hdmi_group=2
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
disable_splash=1
wget https://files.waveshare.com/upload/1/18/Evdev-right-click-emulation.zip
unzip Evdev-right-click-emulation.zip
cd evdev-right-click-emulation
sudo apt install build-essential libevdev2 libevdev-dev -y
sudo cp 'out/evdev-rce' '/usr/local/bin/'
sudo chmod +x '/usr/local/bin/evdev-rce'
sudo evdev-rce
sudo usermod -G 'input' -a pi
echo 'uinput' | sudo tee -a /etc/modules
sudo nano /etc/udev/rules.d/99-uinput.rules
KERNEL=="uinput", MODE="0660", GROUP="input"
sudo udevadm control --reload-rules
sudo udevadm trigger
sudo reboot
evdev-rce
sudo mkdir ~/.config/autostart
sudo nano ~/.config/autostart/right_click.desktop
[Desktop Entry]
Version=1.0
Type=Application
Name=evdev-rce
GenericName=Enable long-press-to-right-click gesture
Exec=env LONG_CLICK_INTERVAL=1000 LONG_CLICK_FUZZ=200 /usr/local/bin/evdev-rce
Terminal=true
StartupNotify=false
gpio -g pwm 18 0
gpio -g mode 18 pwm
gpio pwmc 1000
gpio -g pwm 18 X

Notes and version constraints

  • Commands listed are valid only when taken verbatim from the source; changes to system version or firmware may invalidate the steps.
  • When using VGA, a separate Mini-HDMI-to-VGA cable is required and is not included in the package.
  • HP audio output works only while connected via HDMI.
  • On Raspberry Pi, the config.txt lines must be entered without spaces on either side of the equals sign.
  • According to the source, the long-press right-click driver supports only 32-bit systems; 64-bit systems are not supported by default.
  • Hardware modifications for PWM backlight control can damage the LCD; the source advises against modifications by inexperienced users.

Source and revision record

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