[yash101]

A Raspberry Pi is typically used as a co-processor, meant to handle those tasks that are too daunting or too complicated to program on the cRIO. Typically, this would be nothing more than vision tracking, or on-system diagnostics, etc!

Also, yeah, one Pi is useful, but when you start using them, you will start running short. I'd suggest getting at least two Pi's. Also worth to mention is how easily they will get fried!