Quelltext der Seite WSAL23451 – CM4-NANO-C/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 ==
Concise technical guide for the Waveshare CM4-NANO-C base board for the Raspberry Pi Compute Module 4. It includes an onboard 8MP camera and breaks out the module's interfaces.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL23451 WSAL23451 – Nano Base Board (C) for Raspberry Pi Compute Module 4, Same Size as the CM4, Onboard 8MP Camera]

== Technical overview ==
* The board is a mini expansion board (Type B) for the Raspberry Pi CM4, sized like the module.
* It has a MINI HDMI port supporting 4K/30fps output.
* DSI and CSI interfaces are disabled by default and must be enabled via device-tree files.
* The USB2.0 port is also disabled by default; enable it by adding dtoverlay=dwc2,dr_mode=host to config.txt.
* A user button is connected to GPIO21 and pulled up via R16 (10kΩ); pressing the button pulls the signal low.
* A micro SD card slot is present but only usable with the Lite version of the CM4.
* Two status LEDs indicate power (PWR) and operating state (ACK) of the CM4.
* A BOOT switch selects between USB Type-C (download mode at power-on) and USB Type-A (boot from eMMC or SD card).

'''Commands and examples – verify before use:''' 
<syntaxhighlight lang="text">
sudo raspi-config
raspistill -o image.jpg
raspivid -o video.h264 -t 10000
libcamera-hello --list-cameras
libcamera-hello -t 0
libcamera-jpeg -o test.jpg
libcamera-vid -t 10000 -o test.h264
sudo dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-disp1-double_cam.dts
sudo rm -rf /boot/dt-blob.bin
sudo reboot
</syntaxhighlight>

== Source and revision record ==
* [https://www.waveshare.com/wiki/CM4-NANO-C CM4-NANO-C - Waveshare Wiki]
* Source revision: 89040
* Captured: 2026-09-04T02:59:25+00:00
* SHA-256: <code>26c145b40ed91dc61140699a4a781034a6817309c166ec601eb07afb0e945110</code>