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WSAL20416 – ETH – USB HUB HAT (B)/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 ETH/USB HUB HAT (B) is an expansion for the Raspberry Pi series featuring one RJ45 Ethernet port and three USB 2.0 ports. Depending on the model, it connects via ejector pins or a USB cable.

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Technical overview

  • Designed for the Raspberry Pi series; the companion box targets the Raspberry Pi Zero series.
  • One RJ45 Ethernet port for wired network connectivity.
  • Three USB 2.0 ports; LEDs light up when USB devices are successfully enumerated.
  • For Raspberry Pi Zero, connect via ejector pins; for other models, use a USB cable.
  • Resources include the schematic, CP2102 driver, and a STEP file for 3D printing.
  • If recognition fails: check the USB connector or ejector pins for poor contact.
  • If the Raspberry Pi Zero's USB port is configured as a wireless network card, the system will not recognize the USB hub.
  • Under Raspberry Pi OS Trixie, disable Wi-Fi using nmcli; rfkill is incompatible with this version and would also block hub functions.
  • To disable Wi-Fi under Trixie: add dtoverlay=dwc2,dr_mode=host to /boot/config.txt.
  • Optionally remove module-load=dwc2,g_ether from /boot/cmdline.txt, then reboot.

Commands and examples – verify before use:  

sudo nano /boot/config.txt
dtoverlay=dwc2,dr_mode=host
sudo nano /boot/cmdline.txt
module-load=dwc2,g_ether
sudo reboot

Notes and version constraints

  • USB booting through the hub is not supported according to the source; boot only via SD card is possible.
  • The sequence “power on the Pi first, then connect the hub” deviates from usual logic and requires manual verification.
  • Trixie-specific steps are version-sensitive and must be confirmed before execution.
  • No information on compatibility with all Pi models, power supply details, or safety certifications is present in the source text.

Source and revision record

Abgerufen von „https://wiki.jw-tech.eu/index.php?title=WSAL20416_–_ETH_–_USB_HUB_HAT_(B)/en&oldid=1916“