Search found 33 matches

by gdoisy
Mon Dec 24, 2018 8:55 am
Forum: General Discussion
Topic: Roboclaw brushless equivalent
Replies: 8
Views: 2175

Re: Roboclaw brushless equivalent

Perfect!
by gdoisy
Fri Dec 21, 2018 3:25 am
Forum: General Discussion
Topic: Roboclaw brushless equivalent
Replies: 8
Views: 2175

Re: Roboclaw brushless equivalent

That's great news!
What would be the encoder input? 3-phase Hall sensors? Quadrature encoders ? Both?
by gdoisy
Tue Dec 18, 2018 8:24 am
Forum: General Discussion
Topic: Roboclaw brushless equivalent
Replies: 8
Views: 2175

Roboclaw brushless equivalent

Hello,
We are very happy with the level of functionality of our dual roboclaw controller (for a mobile robot application). We are considering switching to brushless motors for a new application.
Are you planning to extend your range of product to brusless controllers? Do you know any equivalent ?
Best
by gdoisy
Thu Feb 08, 2018 12:02 am
Forum: General Discussion
Topic: E-stop deceleration
Replies: 1
Views: 1420

E-stop deceleration

Hi, Sorry if my question is already answered somewhere. I am trying to understand what deceleration value is applied when using the e-stop function. I think it is braking by default? Is there a way to control that behavior, even roughly, through current limitation for instance? Or is there a setting...
by gdoisy
Mon Sep 11, 2017 8:27 am
Forum: General Discussion
Topic: Serial Communications problem using Linux Kernel 4.10 and 4.12
Replies: 27
Views: 14494

Re: Serial Communications problem using Linux Kernel 4.10 and 4.12

Thanks for sharing.
I will wait a bit and if you don't report an issue with your solution i will use it. I already have several machine which updated automatically to the next kernel and it starts to be a real issue in our case.
by gdoisy
Thu Sep 07, 2017 8:59 am
Forum: General Discussion
Topic: Serial Communications problem using Linux Kernel 4.10 and 4.12
Replies: 27
Views: 14494

Re: Serial Communications problem using Linux Kernel 4.10 and 4.12

I am very limited in time right now, but I am definitely interested if you start working in this direction?
by gdoisy
Wed Sep 06, 2017 7:05 am
Forum: General Discussion
Topic: Serial Communications problem using Linux Kernel 4.10 and 4.12
Replies: 27
Views: 14494

Re: Losing communication with Roboclaw,TTL serial and Raspberry PI

@IMC Support: Now that the issue is confirmed by at least 2 persons, shouldn't the title of the topic be changed to something like "Linux kernel 4.10 and above breaks roboclaw python library" ?
by gdoisy
Wed Sep 06, 2017 7:02 am
Forum: General Discussion
Topic: Packet Serial Read Loop
Replies: 6
Views: 4089

Re: Packet Serial Read Loop

@robof: thanks for the details. A temporary fix that I am using is to stay with kernel 4.4 or 4.8 (default for Ubuntu 16.04.1 ad 16.04.2). You can choose which kernel to boot by default with grub customizer.
by gdoisy
Tue Sep 05, 2017 1:46 am
Forum: General Discussion
Topic: Serial Communications problem using Linux Kernel 4.10 and 4.12
Replies: 27
Views: 14494

Re: Losing communication with Roboclaw,TTL serial and Raspberry PI

Failed also with 0.1 delay.
When I will have more time I will check in the library where to add delay between self._port.write(chr(command)) calls. And test.
by gdoisy
Mon Sep 04, 2017 4:02 am
Forum: General Discussion
Topic: Packet Serial Read Loop
Replies: 6
Views: 4089

Re: Packet Serial Read Loop

@robof: I am trying to debug a similar issue here in case you want to participate: http://forums.ionmc.com/viewtopic.php?f ... 5&start=10
Which kernel are you using? (can you paste the output of a console call to "uname -r" ?)