WSAL24037 – 3.5inch 480x800 LCD/en

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

Technical reference for the 3.5-inch IPS LCD (480×800) with 5-point capacitive touch. The display connects via HDMI and is detected as a USB input device. It supports Raspberry Pi, Jetson Nano, and Windows PCs.

Related products at JW Tech

• WSAL24037 – 3.5inch IPS Capacitive Touch LCD Display, 480×800, Adjustable Brightness

Technical overview

• Resolution: 480×800 pixels; 3.5-inch diagonal, IPS panel
• Touch: up to 5-point capacitive, connected via 5 V USB
• Connections: standard HDMI for video, USB for touch input
• Brightness: up to 300 cd/m², adjustable via on-unit button
• Power draw: ~2 W; supply: 5 V (4.75–5.25 V), minimum current ≥ 500 mA
• Operating temperature: 0–60 °C; storage: −10–70 °C
• Housing dimensions: 88.87 × 52.56 × 7.15 mm; weight: 55 g
• Mounting pillar thread size: M2.5
• Raspberry Pi: manual resolution setting required in config.txt (hdmi_mode=87, hdmi_cvt 480 800 60)
• Windows: calibrate touch via “Calibrate the screen for pen or touch input” in Control Panel

Commands and examples – verify before use: 

hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=87
hdmi_drive=1
hdmi_cvt 480 800 60 6 0 0 0
video=HDMI-A-1:400x1280M@60,rotate=90
display_rotate=1 #1: 90; 2: 180; 3: 270
xinput map-to-output <touch-ID> <HDMI-ID>
ENV{ID_INPUT_TOUCHSCREEN}=="1", ENV{LIBINPUT_CALIBRATION_MATRIX}="0 -1 1 1 0 0"
Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"

Notes and version constraints

• The exact EDID timing values (pixel clock 30.60 MHz, etc.) only matter if the system cannot auto-detect EDID; if auto-detected, manual setup is unnecessary.
• The config.txt commands must match the actual resolution; the source lists 480×800 but the rotation examples use 400×1280 – verify the correct value before applying.
• When multiple monitors are connected, touch defaults to the main screen; remapping requires the xinput command manually.
• Touch rotation calibration matrices differ by OS version (Bookworm vs. Bullseye/Buster); select the method matching your installed system.
• The power supply must deliver at least 500 mA; insufficient current can cause boot failure or persistent display faults.
• Prolonged storage in high-temperature/high-humidity environments should be avoided, as it may permanently damage the panel.

Source and revision record

• 3.5inch 480x800 LCD - Waveshare Wiki
• Source revision: 105256
• Captured: 2026-09-04T03:49:50+00:00
• SHA-256: 91c7487636784ffc829d4e7c85051f7b16678a46109267d23872671ada04f27f