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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''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.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL19885 WSAL19885 – 7inch Capacitive Touch Display for Raspberry Pi, DSI Interface, 800×480]
* [https://shop.jw-tech.eu/p/WSAL32082 WSAL32082 – 7inch Capacitive Touch Display for Raspberry Pi, with Protection Case, DSI Interface, 800×480]

== 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:'''
<syntaxhighlight lang="text">
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
</syntaxhighlight>

== 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 ==
* [https://www.waveshare.com/wiki/7inch_DSI_LCD 7inch DSI LCD - Waveshare Wiki]
* Source revision: 84663
* Captured: 2026-09-02T02:59:28+00:00
* SHA-256: <code>d9de33da35ab28d73ec07961ac8cdae82f369cce9982bd60d1db890b466a1b43</code>

WSAL19885 – 7inch DSI LCD/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex