Switch camera on SmartDashboard based upon value of Network Tables?

Technical Programming
1

Is there a way to have the camera on the smart dashboard switch to another source based on a value we put into network tables?

We’re basically wanting a backup cam to turn on when we invoke our ‘reverse’ function. I’ve got it putting a value into network tables, the reversing works, but I’m at a bit of a loss with the SD side.

Otherwise, we’re debating putting the camera itself on a little servo and just having it flip, but I prefer software fixes to a potentially damagable hardware one.

We’re in python, if it matters. The cameras are all streaming via mjpeg.

2

If your cameras are sufficiently low bandwidth, I’d suggest streaming both all the time, with side-by-side displays.

3

We did something similar for 2016 - we streamed both via mjpg streamer, and then wrote a smartdashboard plugin to switch between displaying one stream or the other based on the value of a boolean… I’m struggling to find the source code for it though… If you’re curious, I can ask our lead SW mentor tonight if he still has it.

4

I’d be interested, if only to see how it was done!

5

That is one thing we’re looking into as well. it should be low enough bandwidth, considering they’re just 160x120 10fps

6

Got the repo:

7

Nice! This is exactly what we’re hoping for. Thanks!