Search found 36 matches
- Wed Sep 06, 2017 11:47 am
- Forum: General Discussion
- Topic: Forum Search Change Request
- Replies: 3
- Views: 4914
Re: Forum Search Change Request
After some research it appears this is a common problem with phpbb. It looks like changing the threshold to 0 and then deleting index and re-creating index might fix it. https://www.phpbb.com/community/viewtopic.php?f=46&t=1441385 I wouldn't worry too much about it at this point since I can cont...
- Wed Sep 06, 2017 1:08 am
- Forum: General Discussion
- Topic: Serial Communications problem using Linux Kernel 4.10 and 4.12
- Replies: 27
- Views: 27907
Re: Losing communication with Roboclaw,TTL serial and Raspberry PI
I'm not sure what the pyserial library is doing behind the scenes, but I wonder if this issue was tested in c++ on the 4.10 kernel if it would have any different result? If that worked, then the c++ library could be wrapped and called from Python with the existing python library. This may be exactly...
- Wed Sep 06, 2017 12:27 am
- Forum: General Discussion
- Topic: All Stop command
- Replies: 14
- Views: 16292
Re: All Stop command
This may not help Chuck-Yeo, but here are my findings. I can say that I have no problem performing a 'Stop All' using the DutyM1, DutyM2, and/or DutyM1M2 commands with a value of 0 and the motors are not holding position (I can freely move); however, there is a problem with these functions in the Py...
- Tue Sep 05, 2017 3:09 pm
- Forum: General Discussion
- Topic: Forum Search Change Request
- Replies: 3
- Views: 4914
Forum Search Change Request
Would it be possible for you to update the settings on the forum search feature? More often than not, I can not search for help due to this error message: The following words in your search query were ignored because they are too common words: I assume there is some setting in phpBB that will let yo...
- Tue Sep 05, 2017 3:02 pm
- Forum: General Discussion
- Topic: Serial Communications problem using Linux Kernel 4.10 and 4.12
- Replies: 27
- Views: 27907
Re: Losing communication with Roboclaw,TTL serial and Raspberry PI
I can confirm that closing/re-opening the connection after any number of cycles does not prevent the problem. I put some debug statements in and have found that the python library is stopping on here, if that helps any def _sendcommand(self, address, command): .... self._port.write(bytes([command]))
- Tue Sep 05, 2017 11:26 am
- Forum: General Discussion
- Topic: Packet Serial Read Loop
- Replies: 6
- Views: 7494
Re: Packet Serial Read Loop
@gdoisy, I am on 4.10 (Ubuntu 16.04)
So it sounds like that the cause of my issue.
So it sounds like that the cause of my issue.
- Thu Aug 31, 2017 11:44 pm
- Forum: General Discussion
- Topic: Packet Serial Read Loop
- Replies: 6
- Views: 7494
Re: Packet Serial Read Loop
The code is essentially just any Read command inside a while loop. Am I correct in thinking with the python code shown below it wouldn't be possible to send another read command until the previous was finished? I can put a sleep in the while loop, >=10ms, and the problem appears to go away. I'm curi...
- Thu Aug 31, 2017 11:10 pm
- Forum: General Discussion
- Topic: Need command to read serial number
- Replies: 1
- Views: 2896
Need command to read serial number
I couldn't find this command so assuming this may be a feature request, I'll preface it with my need for this command. I will be deploying a large number of Roboclaws (maybe eventually MCPs too) in an industrial setting where I will need to uniquely identify the devices via packet serial mode, for a...
- Thu Aug 31, 2017 2:53 am
- Forum: General Discussion
- Topic: Packet Serial Read Loop
- Replies: 6
- Views: 7494
Packet Serial Read Loop
I'm currently reading all the main status variables (the ones shown on 'Device Status' page in Ion Studio) in a loop, but I've found that without a sleep() inside the loop, the reads will stutter and eventually hang. I can restart the script and it will work again for a few seconds, but eventually i...
- Thu Aug 24, 2017 1:25 pm
- Forum: General Discussion
- Topic: MCP vs Roboclaw
- Replies: 1
- Views: 4598
MCP vs Roboclaw
Is there a guide/document/discussion somewhere lining out the differences between the MCP and the Roboclaw?
I'm currently using Roboclaw, but I'm wondering if the MCP line would benefit me.
I'm currently using Roboclaw, but I'm wondering if the MCP line would benefit me.