Getting power from iRobot Create Command Module?

asked 2011-03-07 02:59:13 -0500

Pi Robot
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updated 2016-10-24 09:02:15 -0500

ngrennan
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Hello,

I'm getting ready to follow the tutorial for powering a Kinect off an iRobot Create, and I was wondering: I have the Command Module for the Create and the User Manual shows that the DB9 connectors on the Command Module have pins for 5VDC and "Create Battery Voltage". This leads me to two questions:

I need 5V power to a USB hub on the Create--does anyone know if I can get this off one of the DB9s? And if so, what would be the mA rating?
Can I power the Kinect off the "Create Battery Voltage" pin on one of the DB9s? Or is that unregulated power?

Thanks! patrick

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That tutorial is incorrect about using the Serial connectors. They will not supply enough amperage and your kinect will have many transient issues as it fails to power the video cameras properly. I'm not sure about the command module, but I used the DB25 connector that the command module plugs into directly without any issue. I used pin 12 for vin and pin 25 for ground. Someone (who knows more than me) did say that I should be careful about it drawing the battery too low and should add an 'enable' pin to the regulator, but I have not looked into that yet, so I'll pass the warning on to you.

Murph ( 2011-03-07 03:14:53 -0500 )edit

Thanks Murph--that's good to know! I like the idea of hooking up to the 25-pin connector directly so I'll give that a try.

Pi Robot ( 2011-03-07 03:55:10 -0500 )edit

Just an update that using pins 12 and 25 plus a 12V regulator works like a charm with the Kinect. I'm also using pins 14 and 10 together with a 5V regulator to power a small USB hub since my onboard laptop only has a single USB port and I am also using a Hokuyo laser scanner and an IMU.

Pi Robot ( 2011-03-08 01:49:16 -0500 )edit

I am having problem while connecting the kinect power using DB25 connector of Irobot create base. The connector circuit is designed by clearpath robotics to provide 12V DC power to kinect by taking power from pin 10 and 14 of DB25 connector of irobot create base.

lifelonglearner ( 2013-07-25 23:49:27 -0500 )edit

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Thanks Fergs. Yeah I found that manual and saw the 100mA rating. So I have everything hooked up now to a 12V regulator attached to pins 12 and 25 of a DB25 connector (thanks to Murph).

Pi Robot ( 2011-03-07 14:40:42 -0500 )edit

lifelonglearner ( 2013-07-25 23:49:09 -0500 )edit

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Getting power from iRobot Create Command Module?

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