Quelltext der Seite WSAL16740 – Camera Scheduler/en

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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 ==
The Camera Scheduler allows a Raspberry Pi to connect two cameras through one FPC connection. Switching between the cameras is controlled via GPIO.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL16740 WSAL16740 – Raspberry Pi Camera Scheduler, One Cable for Two Cameras]

== Technical overview ==
* Supported: two 8MP IMX219 cameras (the encryption chip on one camera must be removed) or two 5MP OV5647 cameras.
* Not supported: mixing one 8MP IMX219 and one 5MP OV5647 camera.
* FPC/CSI connector locations vary by model: Pi 2B/3B/3B+ between LAN and HDMI; Pi 4 between HDMI1 and audio jack; Pi Zero beside the power port.
* When inserting the FPC cable, orient the silver metal side toward the HDMI interface. Release the black buckle, align and seat the cable firmly, then close the buckle.
* The camera interface is disabled by default. Enable it with “sudo raspi-config” under Interfacing Options → Camera → Yes, then reboot with “sudo reboot”.
* Test commands: still capture with “sudo raspistill -o image-01.jpg”; 10-second H.264 clip with “sudo raspivid -o video-01.h264 -t 10000”.
* Manual switching: solder a wire to the pad on the FPC cable; pulling the pad down connects it to GND to switch cameras.
* Python-based automatic switching: connect the wire to a GPIO pin (example: PIN 37). The demo scripts automatically alternate cameras every 5 seconds for photos saved to /home/pi/Pictures, or record 10-second videos every 15 seconds saved to /home/pi/Videos.

'''Commands and examples – verify before use:''' 
<syntaxhighlight lang="text">
sudo raspi-config
sudo reboot
sudo raspistill -o image-01.jpg
sudo raspivid -o video-01.h264 -t 10000
cd /boot/Camera-Scheduler/
sudo python switch-photo.py
sudo python switch-video.py
</syntaxhighlight>

== Notes and version constraints ==
* The exact GPIO assignment (PIN 37 in the example) depends on hardware revision and should be verified before use.
* Removing the encryption chip from one IMX219 camera requires soldering and may affect warranty – confirm before proceeding.
* Demo scripts assume they are located at /boot/Camera-Scheduler; if stored elsewhere, paths must be adjusted.
* Mixed configurations of IMX219 and OV5647 are not supported – only identical sensor types work reliably.
* If camera switching fails, check the soldered wire connection first.
* No information about compatibility with newer Pi models (e.g., Pi 5) or current firmware versions; human confirmation required.

== Source and revision record ==
* [https://www.waveshare.com/wiki/Camera_Scheduler Camera Scheduler - Waveshare Wiki]
* Source revision: 78051
* Captured: 2026-08-31T03:49:45+00:00
* SHA-256: <code>55a9579d3d189d2acb77c817a6135248372201bb3471c62e92d9ef7463b78d9f</code>