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by Basicmicro Support
Fri Feb 15, 2019 10:06 am
Forum: General Discussion
Topic: Using roboclaw with ros_control, and programming interface
Replies: 2
Views: 47

Re: Using roboclaw with ros_control, and programming interface

For those interested oyu can follow ChrisA's other problem in this thread: viewtopic.php?f=2&t=819
by Basicmicro Support
Fri Feb 15, 2019 10:05 am
Forum: General Discussion
Topic: Roboclaw stops with all LEDs off, power cycle required
Replies: 2
Views: 27

Re: Roboclaw stops with all LEDs off, power cycle required

No. There is no state(other than completely powered off) where all the leds would remain off. However if one or more LEDs have failed that may explain the problem. On power on we flash all 3 LEDs once so you can be sure they are all working. Check if all three briefly flash. If one or more doesnt th...
by Basicmicro Support
Thu Feb 14, 2019 10:38 am
Forum: General Discussion
Topic: Controlling roboclaws from a C++ Application
Replies: 2
Views: 29

Re: Controlling roboclaws from a C++ Application

1. The arduino library is C++ effectively. 2. The reason we havent dont a C++ library specifically for Windows is because there is no standard serial port class for C++(C# has a standard serial port class which is why we used it on the PC). I recommend looking at the arduino library as a start. It w...
by Basicmicro Support
Thu Feb 14, 2019 10:33 am
Forum: General Discussion
Topic: ReadError() function error - new firmware version (v4.1.29)
Replies: 4
Views: 39

Re: ReadError() function error - new firmware version (v4.1.29)

ReadStatus/ReadError was update in 4.1.29. We ran out of room for new warning/error flags with the addition of the speed and position error limits capabilities so we changed the return value from a 16bit value to a 32bit value.
by Basicmicro Support
Wed Feb 13, 2019 10:21 am
Forum: General Discussion
Topic: ReadError() function error - new firmware version (v4.1.29)
Replies: 4
Views: 39

Re: ReadError() function error - new firmware version (v4.1.29)

The updated ReadStatus/ReadError command is documented here(viewtopic.php?f=2&t=806) temporarily. We are working on an update to the User Manual.

I am updating the roboclaw library download to fix that command. It should be ready later today.
by Basicmicro Support
Tue Feb 12, 2019 10:23 am
Forum: Velocity and Position Control
Topic: Autotune Velocity Settings
Replies: 3
Views: 77

Re: Autotune Velocity Settings

The automatic detection of QPPS is not perfect. It only runs the motors a very short time to take a measurement which leads to aliasing errors. Usually this doesnt matter since QPPS is usually quite high. In your case your maximum speed is so low the autodetect routine is much less accurate. I recom...
by Basicmicro Support
Fri Feb 08, 2019 10:38 am
Forum: General Discussion
Topic: Slave serial RoboClaw motor control
Replies: 1
Views: 38

Re: Slave serial RoboClaw motor control

Your program doesnt set P5 or P6 as outputs as far as I can tell. These pin defualt as inputs. Using the write command on inputs wont do anything to them. You need to use a pinMode function to set the pins as outputs:

pinMode(5, OUTPUT);
pinMode(6, OUTPUT);

Put this in your setup function.
by Basicmicro Support
Fri Feb 08, 2019 10:23 am
Forum: General Discussion
Topic: Python library issue
Replies: 3
Views: 48

Re: Python library issue

What version of Python are you using? My guess is Python 3? Python 3 doenst allow certain conversions that Ptyhon 2.7 supported. Contact support@basicmicro.com for a pre-release of a Python 3 version of the library assuming you are using Python 3.
by Basicmicro Support
Thu Feb 07, 2019 10:19 am
Forum: Velocity and Position Control
Topic: Autotune Velocity Settings
Replies: 3
Views: 77

Re: Autotune Velocity Settings

1. Ion Motion is now deprecated. Please download and install Basicmicro Motion Studio. 2. The autotuner for Ion Motion was agressive. Basicmicro Motion Studios has been tuned down so you should get smoother action. However with any autotuner you will almost always need to make minor adjustments afte...
by Basicmicro Support
Mon Feb 04, 2019 10:17 am
Forum: General Discussion
Topic: Choosing fuse and pre-charge resistor for RoboClaw 2x7A setup
Replies: 3
Views: 137

Re: Choosing fuse and pre-charge resistor for RoboClaw 2x7A setup

2. Correct. When using a power supply you either can rely on the Roboclaws braking the motors to disipate the energy or you should use a voltage clamp. The later will prevent abrupt slow downs when slowing down too fast but is more complicated to deal with. 3. Test it. It will depend entirely on you...

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