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WSAL15932 – 4.3inch HDMI LCD (B)/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

Compact 4.3-inch IPS LCD with a 5-point capacitive touch panel, 800×480 resolution and HDMI/USB interfaces. Supports Raspberry Pi (Pi OS, Ubuntu, Kali, Retropie) and can be used as a monitor for Windows PCs.

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Technical overview

  • IPS panel with fixed hardware resolution of 800×480 pixels
  • 5-point capacitive touch with tempered glass, hardness up to 6H
  • Interfaces: HDMI for video/audio and USB for touch detection
  • Supported systems: Raspberry Pi OS, Ubuntu, Kali, Retropie; as a PC monitor: Windows 11/10/8.1/8/7
  • Multi-language OSD menu for brightness, contrast and power management settings
  • 3.5 mm jack and 4-pin speaker socket (PH2.0, pinout + – – +); an 8 Ω / 5 W speaker is recommended
  • Operating voltage approx. 5 V, operating current approx. 0.5 A
  • Operating temperature range 0 °C to 70 °C
  • Keys: Power (backlight on/off), Menu (OSD menu), Up/Left, Down/Right, Exit (return)
  • Backlight can be controlled via PWM: remove the resistor, connect the PWM pad to GPIO 18

Commands and examples – verify before use:  

hdmi_force_hotplug=1
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
gpio -g pwm 18 0
gpio -g mode 18 pwm
gpio pwmc 1000
gpio -g pwm 18 X

Notes and version constraints

  • SD-card writing steps (Win32DiskImager, SDFormatter) are version-sensitive; the latest Raspberry Pi image must be downloaded
  • Replacing the boot logo requires access to /usr/share/plymouth/themes/pix/splash.png – verify the path for your system version
  • The long-press/right-click emulation is stated to support only 32-bit systems; not supported by default on 64-bit
  • PWM backlight control requires removing a resistor on the board – a mechanical modification; please confirm before executing
  • When multiple displays are connected, this LCD should be set as the main display because touch cursor control works only on the main display
  • All commands were taken verbatim from the source; verify their applicability for the specific system version before running them

Source and revision record

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