Limelight not posting values to NetworkTables

Technical Programming
#1

Our team recently purchased a Limelight 2. We have followed setup instructions for static ip and are able to view the config page and stream but Shuffleboard/OutlineViewer does not show a “limelight” table as described in the docs.

Limelight info:
Firmware: 2020.1
Model: Limelight 2

Team Number: 5943
Static ip:

  • IP Address: 10.59.43.39
  • Netmask: 255.255.255.0
  • Gateway: 10.59.43.1

Hostname: http://limelight.local:5801

If you need additional info, let me know.

1 Like
#2

Hi Antonio,

Have you set the same team number in your Shuffleboard preferences, Roborio, Limelight, and radio? It looks like your radio and Limelight are correct at the very least.

#3

The roborio and shuffleboard both have the correct team number.

#4

It "shouldn’t " make a difference, but try changing the Limelight’s IP from .39 to .11.

#5

I would try reconfiguring the radio and possibly updating firmware if it was last configured at an event.

#6

I have seen that post but reflashing and reconfiguring the radio has not fixed the problem.

#7

Huh, turns out the ethernet cable from the camera to the radio was being weird. Swapping a new one in fixed the issue. Sorry for the inconvenience.

Edit: The issue is back, the limelight worked temporarily and then stopped giving values.

1 Like
#8

There is a new issue, the limelight only publishes values once and does not update?

#9

Are you writing code to push values to your dashboard, or are you watching the raw Limelight output in the Limelight table? Can you post / link your code if you are posting manually?

#10

I am looking at the values directly in Shuffleboard and OutllineViewer. The values do not update over time.

#11

What language are you using for your robot code?

#12

Java, but that shouldn’t be affecting output in Shuffleboard (NetworkTables menu) and OutlineViewer.

#13

Do both Shuffleboard and OutlineViewer show they are connected? If you haven’t tried it yet, put both the RoboRIO and the Limelight on a network switch (and then connect that switch to the radio), rather than using the two ports of the radio.

#14

Shuffleboard says NetworkTables connected and so does OutlineViewer. Also switching from the radio to a network switch plugged into the radio still gives no networktables publishing.

#15

After setting the roborio and driverstation laptop to have static ips the limelight is now visible in NetworkTables.

#16

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