Search found 7 matches

by jameslo
Wed Jul 24, 2019 5:36 am
Forum: General Discussion
Topic: monitor packet serial with MotionStudio?
Replies: 12
Views: 1784

Re: monitor packet serial with MotionStudio?

Thanks for your clarification, I get it now. Also, I wanted to report back that those scope screen shots I posted are no good. I was grounding the probe too far upstream. When I ground it at one of the Roboclaw pins, the quadrature signal is noise-free.
by jameslo
Tue Jul 23, 2019 5:47 am
Forum: General Discussion
Topic: monitor packet serial with MotionStudio?
Replies: 12
Views: 1784

Re: monitor packet serial with MotionStudio?

I'm not understanding your recommendation about motor current settings. What value is the default value? I'm using Pololu 37D motors, and while their stall current is 5A, Pololu posts strong warnings about actually stalling the motor because that could damage it. So would this be an example of a mot...
by jameslo
Sat Jul 20, 2019 10:49 am
Forum: General Discussion
Topic: monitor packet serial with MotionStudio?
Replies: 12
Views: 1784

Re: monitor packet serial with MotionStudio?

Thanks, I think current blanking was the issue. The 2x7A in question was set to 4.8% while the other was over 5%, which explains why the issue followed the controller. When I increased current blanking to 8%, I was able to reduce maximum motor current to 6A with only one hesitation in 24 hrs. I will...
by jameslo
Thu Jul 18, 2019 3:07 pm
Forum: General Discussion
Topic: monitor packet serial with MotionStudio?
Replies: 12
Views: 1784

Re: monitor packet serial with MotionStudio?

I updated your Arduino library and improved my debugging code, but I don't think there is anything wrong with your library vis-a-vis the SAMD21 and my application. I'm only using forwardMX and backwardMX, and those functions are just wrappers to write_n, which itself is mostly handling your packet s...
by jameslo
Mon Jul 15, 2019 11:19 am
Forum: General Discussion
Topic: monitor packet serial with MotionStudio?
Replies: 12
Views: 1784

Re: monitor packet serial with MotionStudio?

I don't think the Roboclaw is rebooting because the other channel M2 continues to follow the sine curve I've programmed for it. The motors I'm using have a published stall current of 5A, and I've set M1 Max current to 10A while M2 is set to 6A. To test if the M1 motor was faulty, I swapped front and...
by jameslo
Fri Jul 12, 2019 6:59 pm
Forum: General Discussion
Topic: monitor packet serial with MotionStudio?
Replies: 12
Views: 1784

Re: monitor packet serial with MotionStudio?

I'm using your Arduino library on a MKR1000, and am checking the forwardMX/backwardMX return value (always returns true). It's a mecanum wheel robot so I'm wrapping the calls inside a function that gives me a higher level movement command: //direction = 0..2, where 0/2 = forward, 0.5 right, 1 back, ...
by jameslo
Thu Jul 11, 2019 10:51 am
Forum: General Discussion
Topic: monitor packet serial with MotionStudio?
Replies: 12
Views: 1784

monitor packet serial with MotionStudio?

I noticed that I can use MotionStudio to monitor motor speed, PWM, etc while a Roboclaw 2x7A is responding to packet serial commands, but it appears that if I choose to graph Motor1 Setpoint, it doesn't do what I would expect it to: display the speed requested in the most recent packet for Motor1. I...