Search found 7 matches

by cengh
Wed Apr 11, 2018 2:32 pm
Forum: General Discussion
Topic: Timeouts on serial line when moving two motors at once
Replies: 2
Views: 3534

Re: Timeouts on serial line when moving two motors at once

A few more details. We're using 12-volt, 1-amp motors. We tried using a separate logic power supply and it didn't change the outcome.
by cengh
Wed Apr 11, 2018 2:29 pm
Forum: General Discussion
Topic: Timeouts on serial line when moving two motors at once
Replies: 2
Views: 3534

Timeouts on serial line when moving two motors at once

We're using the 2x7a (firmware version 4.1.24) to drive two motors. We noticed when sending a command to move both motors at the same time in a somewhat aggressive motion we get timeouts on commands that come immediately afterward. Usually there will be a command that times out followed by a few com...
by cengh
Tue Sep 12, 2017 9:07 am
Forum: Velocity and Position Control
Topic: Speed commands don't respect min/max position
Replies: 5
Views: 7381

Re: Speed commands don't respect min/max position

Thank you for your replies. One more question: is the MixedSpeedAccelDeccelPosition method considered a position command or a velocity command? It seems to accept both types of parameters.
by cengh
Fri Sep 08, 2017 11:34 am
Forum: Velocity and Position Control
Topic: Speed commands don't respect min/max position
Replies: 5
Views: 7381

Re: Speed commands don't respect min/max position

Thanks for your reply, @robof. Yes, I think you are right that using those two commands we could make it work. The down side is the latency that it would introduce to first read back the position and then set the accel/velocity/position. But I will give that a try. Thanks!
by cengh
Fri Sep 08, 2017 10:35 am
Forum: Velocity and Position Control
Topic: Speed commands don't respect min/max position
Replies: 5
Views: 7381

Speed commands don't respect min/max position

I have set up the Roboclaw 2x7A with encoders to use the position commands. Everything works well and it correctly stops when it reaches the min or max position I have set. However, these limits are not respected when I use the MixedSpeedDistance command. The Roboclaw moves right past the position l...
by cengh
Wed Jun 14, 2017 10:49 am
Forum: General Discussion
Topic: Save custom settings to EEPROM
Replies: 9
Views: 10064

Re: Save custom settings to EEPROM

I see. What about commandeering a Roboclaw setting that isn't being used or doesn't apply to the particular board I have? Is that too dangerous?
by cengh
Tue Jun 13, 2017 11:23 am
Forum: General Discussion
Topic: Save custom settings to EEPROM
Replies: 9
Views: 10064

Save custom settings to EEPROM

I would like to save and read back custom settings to the EEPROM of the Roboclaw 2x7A. The amount of data is very small. I want to save a 64-bit serial number, a 32-bit bitwise bank of flags and perhaps four more 32-bit values. Is there any way to do this? I only need to set the settings occasionall...