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2015-10-09 01:35:14 -0500 answered a question Using phidget or phidget driver pkg to see the feedback of encoder

Pls help..

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2015-10-08 00:57:36 -0500 asked a question Using phidget or phidget driver pkg to see the feedback of encoder

Does anyone use phidget pkg of phidgets driver pkg to see the feedback of encoder in ros? Now I have the phidgets encoder hardware ( http://www.phidgets.com/products.php?... ) and a DC motor with encoder. I want to see the feedback of ros side when running some phidgets node ? which one do I need to choose? 1: http://wiki.ros.org/phidgets 2:http://wiki.ros.org/phidgets_drivers Hope can get some hints from you guys. Thanks!!

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2015-07-15 10:24:57 -0500 asked a question Fail to run the kangaroo_driver node

Hi.Today in lab I want to use the ROS in virtual box to control the motor connect to the kangaroo and sabertooth set. The node is compiled successfully and I did find out the port which has been using and make it available. Besides, I have modified the port setting inside the kangaroo_driver.cpp. Everything seems perfect. When I tried to run the node, it shows "fail to read from the serial. Sent start signals to clear." The address of the code used is https://github.com/smd-ros-devel/kang...

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2015-05-31 02:46:29 -0500 asked a question Question about turtle_teleop_key

Hi. Can anyone help me and see this programing. http://code.metager.de/source/xref/ro... My question is What a_scale and l_scale stand for? And in Switch(c). Why value of angular and linear are all 1.0 rather than 2.0. Thank you very much!

2015-05-26 10:26:00 -0500 asked a question Use ros sabertooth-kangaroo set to control a motor.

Hi. I just recently start doing a project which require us to use ros to control a motor. For example, when press the W and S button in the keyboard then the motor will run forward or backward respectively. So may I ask what should be used to achieve this? Thankx!!!