OpenMV cam stops working after 20-30 minutes

[allan170]

Aha. Searching for ROI I found this thread:

ROI & AprilTags: Trying to improve distance

I’m trying to improve the distance from which I can detect AprilTags. The plan is to make an “indoor GPS” where I detect AprilTags affixed to small UGVs and then send the coordinates to the individual robots. Basically, I want to use it to emulate GPS – outside looking in – for some labs for my students. The lab space has a 12’ ceiling, and I’d like to mount the camera as high as possible to cover as much ground as possible. The vehicles are not that big, so the obvious solution – bigger tags – …

It looks like that person and I are trying to get to the same place: detect the smallest possible AprilTags in a decent-sized FOV.

I had it running for several hours today with time.sleep(0.1), so that appears to be stable. The resulting data rate is a little on the slow side, but I think I can live with it.

Thanks for your help!