ROSbot XL – Digital Board partial failure

Hardware
1

Hello Husarion Community,

I am having issues with my ROSbot XL where the Ethernet ports on the digital board have stopped working. This started suddenly during normal operation, and I suspect it might be a hardware or boot failure on the digital board. I’d appreciate any advice on further debugging or resolution steps.

My Problem

  • I was connected via SSH over the ethernet
  • the SSH session closed abruptly
  • since then, both ethernet ports on the digital board are unresponsive
  • the Raspberry pi itself boots normally and is accessible via its own ethernet port or wifi

Symptoms

  • LEDs:
    • LED1: briefly blinks green once on power-up, then turns off permanently
    • LED2: always off
  • USB hub on digital board: all ports have power and work fine
  • no access to microros topics or STM32

System Details

  • RosbotXL autonomy package
  • OS: Ubuntu 24.04 LTS (Noble Numbat)
  • ROS Distro: ROS 2 Jazzy
  • SBC: Raspberry Pi 4 Model B

Steps I Tried

  • Power and connections:
    • verified voltages with multimeter: 5V/3.3V rails on digital board OK, but no activity on Ethernet
    • checked and changed ethernet cable from Pi to digital board, no issue with cables
    • tested USB ports: they all work and receive power
  • reboots and resets:
    • multiple reboots: LED1 blinks briefly but goes off
    • pressed DB Reset button in digital board: no change in LEDs or ethernet.
  • Firmware flashing with ~/flash_firmware.sh succeeded but with the issue still persisting

I’d appreciate any help and thanks in advance!

Best,
Emmi

2

Hi @Emmi,

Thanks for detailed description!

  1. Do Ethernet ports flash/blinks when the Ethernet cable is connected? If not, this may indicate physical damage to the port.

  2. On the software side, all you need to do to connect to the Digital Board is:

If it looks more like a hardware issue and physical damage, please write an email to support@husarion.com with a link to this thread and the robot’s serial number.

3

Hello, thank you so much for the quick reply.

Unfortunately, neither ethernet port on the digital board shows flashing or blinking when a cable is connected. When having my laptop connected to the rear ethernet port, my laptop does not detect any link, therefore i cannot connect to the digital board at all.

So I’ll follow your advice and message the husarion support.

Thanks again,

Emmi