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<title>RoboSavvy Forum</title>
<subtitle>Robosavvy Forum: The largest online community of Humanoid Robot Builders</subtitle>
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<updated>2014-09-10T22:42:03+01:00</updated>

<author><name><![CDATA[RoboSavvy Forum]]></name></author>
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<entry>
<author><name><![CDATA[klims]]></name></author>
<updated>2014-09-10T22:42:03+01:00</updated>
<published>2014-09-10T22:42:03+01:00</published>
<id>http://forum.robosavvy.com/viewtopic.php?t=14089&amp;p=43393#p43393</id>
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<title type="html"><![CDATA[Re: Darwin-mini and Open Source gait engine]]></title>

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I ended up going with the Arbotix pose engine. A couple of gotchas for anyone else attempting the same:<br /><ul>1. The XL320 servos use the Dynamixel Protocol 2.0, not 1.0 (currently used by Arbotix)<br />2. <span style="text-decoration: line-through;">The CM9.04-C runs at 72MHz not 16MHz like the ArbotiX-M controller, so the conversions from frames to milliseconds needs to change accordingly</span><br /><span style="font-style: italic">EDIT: It seems like I might have made a mistake here. I had a RPM-&gt;Sequence error</span><br /></ul><br />I'm still working through some problems with converting .mtnx files to the RPM files needed for the Arbotix pose engine, but should be done soon.<p>Statistics: Posted by <a href="http://forum.robosavvy.com/memberlist.php?mode=viewprofile&amp;u=927">klims</a> — Wed Sep 10, 2014 10:42 pm</p><hr />
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<entry>
<author><name><![CDATA[klims]]></name></author>
<updated>2014-08-25T11:15:43+01:00</updated>
<published>2014-08-25T11:15:43+01:00</published>
<id>http://forum.robosavvy.com/viewtopic.php?t=14089&amp;p=43371#p43371</id>
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<title type="html"><![CDATA[Darwin-mini and Open Source gait engine]]></title>

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I've recently purchased the Darwin-mini and am looking for some suggestions on open source gait engines/motion controllers<br />As far as I can tell the Robotis R+ Motion software that allows me to program motions using the GUI is not open source in any way and neither is their android app<br /><br />As far as I can tell my options are:<br />1. ArbotiX pose engine<br />2. Write my own gait engine<br /><br />I'm currently in the process of trying to rewrite the mtn2cp9rpm.py to accept mtnx files (the latest file type of R+ Motion) so with any luck I will be able to get the ArbotiX pose engine going.<br /><br /><br />Cheers.<p>Statistics: Posted by <a href="http://forum.robosavvy.com/memberlist.php?mode=viewprofile&amp;u=927">klims</a> — Mon Aug 25, 2014 11:15 am</p><hr />
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