Using 2 Cameras

[Mark McLeod]

Are you getting a message on the window where the 2nd camera image should be displayed?

There can be an issue using two USB cameras if the requested total bandwidth would exceed the USB limits, then the 2nd camera image is rejected.

You can try reducing the first camera image to it's minimum 160x120 and restarting the roboRIO.

[OreNPluS]

Originally Posted by Mark McLeod

Are you getting a message on the window where the 2nd camera image should be displayed?

There can be an issue using two USB cameras if the requested total bandwidth would exceed the USB limits, then the 2nd camera image is rejected.

You can try reducing the first camera image to it's minimum 160x120 and restarting the roboRIO.

that actually worked, but the image size is too low for us, is there any way to make it work on higher image size ???

[Mark McLeod]

Experiment with different settings, resolution, fps, compression now that you know how to get both working.

[JeffB]

Are you hoping to have both cameras displaying their images at all times? Or, are they meant to do things at different times?

A lot of the problems you'll run into with cameras relate to the maximum bandwidth you're allowed to use during a match. As you saw here, reducing the image size allowed both to send. You can look at ways to play with the fps and resolution to help with this. You can also consider turning cameras on and off as needed so that you're not sending images and using that precious bandwidth when you're not planning to look at that camera (for example, if you have one camera on each side and a different view of "front of the robot" during different phases of your game)