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Forum Guru
 
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Last Login: Saturday, December 31, 2011 10:37 AM
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Hi Jason,
I am writing some simply Python routines to control my Serializer so I can access it on Linux as well as Windows. Most of the stuff I can do just by calling the appropriate firmware command (e.g. pping(4) to get the Ping reading on pin 4). However, I now want to emulate your pidController commands such as Rotate() and TravelDistance(). Rather than reinvent the wheel (so to speak), I'm wondering if you would mind posting the source of your PID routines on the forum. Then I can just convert them to Python.
Thanks!
patrick
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Supreme Being
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Last Login: Monday, October 31, 2011 9:18 PM
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| Emulating the PID algorithms outside of the Serializer firmware would probably not work well at all. This is because the algorithm is driving by microcontroller irqs created on encoder pulses. You won't have access to these irqs, so how are you planning on driving your algorithm? You can't just do it by looking at encoder distance values? Best Regards,
Jason Summerour
President,
Summerour Robotics Corporation
www.roboticsconnection.com
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Forum Guru
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Last Login: Saturday, December 31, 2011 10:37 AM
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Hi Jason,
Many thanks for your reply. I don't think I asked my question very well. I can use the mogo and digo firmware commands for moving a target speed and/or distance. But since there isn't a "rotate" firmware command, I was hoping to see how you map encoder ticks and wheel size into a certain rotation angle. Shouldn't be too hard to figure out but I thought if it was just a matter of copy-and-paste from your source, it would be easier just to ask.
--patrick
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Supreme Being
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The .NET lib uses the digo command to implement rotate for the PIDMotorController...It just spins the motors in opposite directions for a specified distance (which you'll have to figure out). Bam! Done! LoL  Best Regards,
Jason Summerour
President,
Summerour Robotics Corporation
www.roboticsconnection.com
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Forum Guru
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Ah, thanks Jason! That shouldn't be too difficult even for me! 
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Supreme Being
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Last Login: Monday, October 31, 2011 9:18 PM
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Forum Newbie
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Last Login: Thursday, May 03, 2012 7:50 AM
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What is a PID algorithms? I searched for this but not getting any result.
grape seeds
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