Updates From Limelight 2+ to 3

[big.mamba]

Hi, I didn’t understed what big the differences with Limelight 2+ to 3?
Can someone summaraize me this?

[gdefender]

LL3 is smaller and faster. H.264 streaming is the only feature exclusive to LL3.

[asid61]

It uses a Pi4 instead of a Pi3. We don’t know other details yet, like exactly how much of a performance boost that equates to, but figure 2x as fast as a Pi3 LL running AprilTag detection. Retro tape detection should be pretty much the same (90fps). It’s not going to be crazy fast compared to a custom solution.

You can try the new firmware on a LL2 if you have one lying around.

[gdefender]

Brandon gave us some hints at the performance.

Introducing Limelight 3

@Jack_1221 @fedorlspp26 @jdao @BoxOfScraps @Kalimbus @Joel_Singh AprilTags and Coral-accelerated models work on LL1, LL2, and LL2+. Object detection models will run at 20-30fps on older hardware as opposed to 45-60fps on LL3. Classification models run at 90fps on LL3, and I believe 60fps on older hardware. H.264 streaming is the only feature exclusive to LL3.

[asid61]

Those are just fps numbers for object detection with the Coral with no indication of the resolution, so they’re basically meaningless. Is that 60fps at 160x120, or 640x480? Is there downsampling involved?

No mention of AprilTags speeds but at least on a LL2+ LL firmware is significantly slower than Photonvision on the same hardware.