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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 ==
Technical overview of the Waveshare OV9281-110: a 1MP monochrome sensor module with global shutter, CSI connection and libcamera control for all Raspberry Pi boards.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL21653 WSAL21653 – OV9281-110 Mono Camera for Raspberry Pi, Global Shutter, 1MP]

== Technical overview ==
* Sensor: OV9281, monochrome, 1 megapixel, global shutter.
* Connection: CSI port; on the Raspberry Pi 5 two CSI ports are available, both usable.
* Supported boards: All Raspberry Pi models (including Compute Module).
* Recommended driver: libcamera; according to the source, Raspicam is not supported for the OV9281.
* Configuration: Set "camera_auto_detect=0" in config.txt and add "dtoverlay=ov9281".
* Preview: "sudo libcamera-hello -t 0" opens a persistent preview; close via Alt+F4 or Ctrl+C in the terminal.
* JPEG capture: "libcamera-jpeg -o test.jpg -t 2000 --width 640 --height 480" saves a full-frame JPEG.
* Exposure control: "--shutter 20000 --gain 1.5" sets exposure time and gain manually.
* Stereoscopic setup: Two cameras are distinguished via "cam0"/"cam1", e.g. "dtparam=imx219,cam0" and "dtparam=ov5647,cam1".
* Tuning files: Libcamera loads a tuning profile per camera; if deviations occur, a custom JSON file can be loaded, e.g. "--tuning-file /path/to/file.json".

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
sudo libcamera-hello -t 0
libcamera-jpeg -o test.jpg -t 2000 --width 640 --height 480
libcamera-jpeg -o test.jpg -t 2000 --shutter 20000 --gain 1.5
sudo nano /boot/config.txt
sudo nano /boot/firmware/config.txt
</syntaxhighlight>

== Notes and version constraints ==
* Exact compatibility with specific board revisions depends on the firmware version; verify before purchase that the board provides the required CSI pins.
* When using the Compute Module, the exact location of the CSI port on the carrier system must be confirmed.
* Adding an external JSON file (e.g., for IMX290) requires network access and correct permissions.
* If image quality is insufficient, a custom tuning profile should be created and tested.
* All commands must be run with root privileges; incorrect configurations may prevent the system from booting.

== Source and revision record ==
* [https://www.waveshare.com/wiki/OV9281-110_Camera OV9281-110 Camera - Waveshare Wiki]
* Source revision: 84368
* Captured: 2026-09-03T03:11:51+00:00
* SHA-256: <code>59fc6407117bfe1cff16e6cd0daae6fca1fa965320d122ed1f6a2756d3e685c4</code>

WSAL21653 – OV9281-110 Camera/en - Versionsgeschichte

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