What sensors are used to detect the hot LED lights on the FRC field?

[tr6scott]

Originally Posted by DonRotolo

We are using the Axis camera to detect the yellow LEDs surrounding the high goal during autonomous.

Don,

I was thinking of doing this too, did you buy the lights the field uses, or did you have access to a field that did? Once the bot is in the bag, we are working on hot goal detection, anything you can share?