What does the Camera Slow Down?

[apalrd]

A few things
Generally, things slow down because there is either a lack of RAM, CPU power, or in some cases bandwidth.

1. The camera has to send complete images over WiFi 15 times per second. That's a lot of bandwidth, something WiFi can't always handle as fast as we would like.

2. The Dashboard Data is updated at the same frequency as the robot comm packets, 20hz or every 50ms. The Camera image is different, updating as fast as it can (which isn't very fast, usually around 10hz max)

3. If the robot slows down, either you are sending too much data and the field is throttling bandwidth, or your code is using more than the CPU can provide. I have seen both. If you only have a problem on the field, it's the first. Otherwise, it is probably the second. The solution is to compress the image more and send less (smaller image), or lessen use on CPU.

4. We have had problems with the Dashboard image, but we didn't use it anyway so we disabled it.