Powering BrickPi Motors


#1

I just read a post and @JohnC said not to run motors with the BrickPi plugged into the wall. I didn’t know and I sorta did that. Everything seems to work, is there a chance I could have broken something? And Could You please have a page that tells you what not to do? I don’t want to break a $180 kit.


Question concerning powering the BrickPi
#2

Hey @graykevinb, I don’t think that you broke anything; do the motors work?

We have our BrickPi setup instructions here.

And specifically, there’s a page (with a big diagram) on how to power the BrickPi here.


Tethered rig for brickpi robot
#3

Yes, I was just afraid I could have reduced the lifespan of it. Kinda like your phone can survive only so many drops and it breaks.


#4

I’ve been working on some code to turn both motors at the same speed (Proportional Integral Control, originally from alexkniffins I think).
I found that running off just RPi power (USB Mico?), that the motor speeds varied widely. It was a good test of the python code to keep them in line.
Running off batteries & USB was much more consistent.


#5