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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