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2026-09-06T07:57:50Z

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 ==
Carrier board for the Raspberry Pi Compute Module 4 with dual Ethernet, Wi‑Fi 6 and an M.2 E‑Key slot; supports 7–12 V DC power supply.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL23589 WSAL23589 – WIFI6 Dual ETH Base Board/Mini-Computer Designed for Raspberry Pi Compute Module 4(NOT Included), Onboard M.2 E KEY Slot]
* [https://shop.jw-tech.eu/p/WSAL23591 WSAL23591 – WIFI6 Dual ETH Mini-Computer Designed for Raspberry Pi Compute Module 4(NOT Included), Onboard M.2 E KEY Slot]
* [https://shop.jw-tech.eu/p/WSAL23808 WSAL23808 – WIFI6 Dual ETH Mini-Computer Designed for Raspberry Pi Compute Module 4(NOT Included), Onboard M.2 E KEY Slot]
* [https://shop.jw-tech.eu/p/WSAL23809 WSAL23809 – WIFI6 Dual ETH Mini-Computer Designed for Raspberry Pi Compute Module 4(NOT Included), Onboard M.2 E KEY Slot]

== Technical overview ==
* Compatible with all versions of the Raspberry Pi Compute Module 4 (module not included).
* Two RJ45 Gigabit Ethernet ports (10/100/1000 Mbps) plus one additional 100 Mbps Ethernet port via a USB hub chip RTL8152.
* Three USB 2.0 ports for peripherals.
* M.2 E-Key slot supports 2230 and 2240 form factors; according to the FAQ it is intended for Wi‑Fi cards, not NVMe or SSDs.
* Dual HDMI outputs supporting 4K@30 fps; enabling DSI disables one of the HDMI outputs.
* Dual MIPI CSI camera ports and a MIPI DSI display port (DISP1).
* RTC over I²C (chip PCF85063A, address 0x51); default bus is I²C1; enable via dtparam=i2c_arm=on and dtoverlay=i2c-rtc,pcf85063a in /boot/config.txt.
* Fan driven by PWM on GPIO18; supply voltage selectable between 5 V and 12 V via resistor selection (default 12 V).

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
sudo nano /boot/config.txt
dtparam=i2c_arm=on
dtoverlay=i2c-rtc,pcf85063a
sudo hwclock -w
sudo hwclock -s
sudo hwclock --set --date="9/8/2021 16:45:05"
sudo hwclock -r
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-disp0-double_cam.dts
sudo raspivid -t 0 -cs 0
sudo raspivid -t 0 -cs 1
</syntaxhighlight>

== Notes and version constraints ==
* No PoE support on this board.
* Power supply: at least 12 V / 1.5 A required during normal operation, otherwise automatic shutdown or clock throttling may occur.
* Only USB and HDMI devices may be unplugged while powered on; disconnect all other interfaces only after powering down.
* The Type-C port is solely a USB slave port for image flashing and cannot be used as a power input.
* Compatibility of specific camera sensors with the new Bookworm system must be verified per sensor; the source lists supported sensors but does not cover every available model.
* With an OpenWrt install, IP addresses and credentials depend on configuration; the listed defaults apply only to the shipped image.
* Changes to FAN_VCC resistors or RTC I²C bus selection are hardware-level modifications requiring manual intervention on the board.

== Source and revision record ==
* [https://www.waveshare.com/wiki/CM4-DUAL-ETH-WIFI6-BASE CM4-DUAL-ETH-WIFI6-BASE - Waveshare Wiki]
* Source revision: 98445
* Captured: 2026-09-04T03:09:10+00:00
* SHA-256: <code>d73032cd5d7c4c08b9271605eab49fe1feec10e08371c93c803dbfa0ae645d00</code>

WSAL23589 – CM4-DUAL-ETH-WIFI6-BASE/en - Versionsgeschichte

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