Video Feed Not Displaying in Cockpit

Blue Robotics Software Cockpit
21

Hi @grahammalyon -

That’s looking like you don’t have a USB lowlight camera connected, or at least not a functional one! Could your system be affected by Technical Bulletin 12?

22

This was suggested to me but I have plugged it into a computer and its working fine I have also tried the other USB ports on the board should I try a clean install on the Pi? If so how would I go about it? Or is there something else I should try first? Many thanks :slight_smile:

23

Are you using the cable the camera comes with? The Raspberry Pi is quite sensitive to the USB port signal integrity, so extended cables, not using twisted pairs for the data wires, or routing the wires too close to switching power electronics (like ESCs) can cause the camera to fail to be detected.

24

Hi @grahammalyon -

To have a look at what might be going on, please share a screenshot of the contents of dmesg.

  1. Go to BlueOS terminal, type red-pill and press enter
  2. type dmesg and press enter
  3. Share screenshot (cntrl-cmd-shft-4 on mac copies selected area to clipboard, or use snip on windows)

Do this with the camera already connected - if TB12 or a bad cable applies, you’ll see lots of messages about usb deivce being connected / disconnected, new video devices being created with higher and higher numbers

25

Hi Tony

Thank you for the detailed instruction please find the screenshot attached I hope it means more to you than it does to me the response was -2500 lines long! Is this what you would expect from TB12?

red-pil
red-pil1323×1704 256 KB

26

Yes set up just as it should be :slight_smile:

27

You indeed have a faulty camera. It is connecting and disconnecting intermittently for over-current, probably caused by a short circuit in the camera itself or its cable.

2 Likes
28

Hi @grahammalyon -

@rafael.lehmkuhl is correct, some aspect of the camera or its cable is causing the device to not stay connected. Please reach out via the help center, report a problem with a product, and include your order number to receive assistance! If your camera is affected by TB12 (determined by order#), a replacement is due.

2 Likes
29

Terrific thank you I really appreciate your help.