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WSAL19885 – 7inch DSI LCD/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

Concise technical overview of the Waveshare 7-inch capacitive touch display with DSI interface, 800×480 resolution and 60 Hz refresh. Includes connection types, system requirements and configuration commands.

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Technical overview

  • The display is driven directly through the Raspberry Pi's DSI interface; maximum refresh rate is 60 Hz at 800×480 pixels.
  • The capacitive touch panel supports 5-point touch and uses tempered glass with hardness up to 6H.
  • Compatible with Raspberry Pi 5/CM4/CM3+/CM3 via the 22-pin DSI1 interface; older boards (Pi 4B/3B+/3A+/3B/2B/B+/A+) use a 15-pin DSI interface.
  • Power is supplied via a 2-pin power cable connected to the 40-pin GPIO header; the Pi can optionally be mounted on the back of the display with screws.
  • For current systems (Trixie/Bookworm), brightness can be adjusted in the GUI under Control Center → Screens → DSI-2 → Brightness or via terminal using /sys/class/backlight/*/brightness.
  • Display rotation is done either through the GUI (Orientation setting) or by adding rotate=90/180/270 to /boot/cmdline.txt in the form video=DSI-1:800x480M@60,rotate=90.
  • On Bullseye/Buster, touch rotation must be configured separately after display rotation; Trixie/Bookworm support synchronized rotation of display and touch.
  • To disable touch input, add disable_touchscreen=1 at the end of config.txt; a reboot is required for the change to take effect.

Commands and examples – verify before use:  

dtoverlay=vc4-kms-dsi-7inch
dtoverlay=vc4-kms-dsi-7inch,dsi0
video=DSI-1:800x480M@60,rotate=90
echo X | sudo tee /sys/class/backlight/*/brightness
disable_touchscreen=1
xset dpms force off

Notes and version constraints

  • The exact steps for touch rotation under Bullseye/Buster are incompletely shown in the source; please verify manually before implementation.
  • For Pi 5/CM4/CM3+/CM3 there are two MIPI DSI interfaces; the correct interface (DSI1 recommended by default) must be selected correctly.
  • The command xset dpms force off applies only to Bullseye and Buster; other systems may require alternative methods.
  • Some sections of the source contain placeholders and incomplete text passages; all uncertain details should be verified before use.

Source and revision record

  • 7inch DSI LCD - Waveshare Wiki
  • Source revision: 84663
  • Captured: 2026-09-02T02:59:28+00:00
  • SHA-256: d9de33da35ab28d73ec07961ac8cdae82f369cce9982bd60d1db890b466a1b43
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