What is best resource, tutorials to learn ROS using rospy?

ROS
rospy

asked 2014-09-02 10:31:19 -0500

ish45
141 ●26 ●28 ●37

updated 2014-09-02 13:23:04 -0500

I have been learning ROS for two weeks now from online tutorials at Ros.org .

I have to build a mobile robot for my company. I will use ROS in my project. I will program in Python using rospy library. I want to know if there is any resource or any book where we can get more in depth guidance about developing a mobile robot using rospy. I mean, I would like to know if there is any resource which provides a step by step guidance in developing a mobile robot using ROS. In this way, It would be easy to get an idea of how to use ROS and rospy library to develop a robot from scratch.

It would be a great help if anybody of you could share your experiences on how you guys learnt ROS and which resources you made use of? Are there any best methods to learn ROS quickly? How much time it could take to start developing applications using ROS and rospy?

Thanks a lot

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answered 2014-09-02 14:51:37 -0500

Andromeda
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updated 2014-09-02 14:52:20 -0500

The big problem is that the tutorials tells you how to do something but not why you (or the author) did it in that way. The best approach (to me) is to read at first the tutorials online and change a littel bit things to see what happen and to take confidence with the ROS environment. Later I can strongly suggest you to buy ROS by Example by Patrick Goebels which covers all the topics writing in Python and never in C++. Pay attention to buy the right version of the book. Since there are many version for every version of ROS (Groovy, Hydro, Fuerte...) you might want to buy the right one (for Indigo is Hydro ok, I use it now).

If you want to check at some code there are lot of robots prpogrammed with python (Arbotix for example)

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Very good answer. Thanks. I am going to buy that one.

ish45 ( 2014-09-02 15:23:39 -0500 )edit

you will be very happy, I promised. But don t forget to do the tutorials at first. Otherwise will be the book too much difficult to understand

Andromeda ( 2014-09-02 15:31:13 -0500 )edit

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answered 2014-09-02 13:04:53 -0500

Airuno2L

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I found the official ROS online tutorials to be enough to get me started, but I did learn a lot more in depth stuff from reading ROS by Example. When I only use the online tutorials, I only learn things I know I need to learn because I'm trying to figure out a problem. But with the books, I learn things that I didn't know were available :)

It looks like the author has made a second edition that covers more advanced topics such as "creating URDF models" which is what your asking when you say developing a simulated robot in ROS, you might want to check that out as well.

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Thanks. I am developing a real mobile robot not a simulated robot. Sorry it was my mistake while writing. ROS by Example has been written using roscpp. I was looking for something with rospy. If there are some resources which help me to get started programming in rospy would be a great help.

ish45 ( 2014-09-02 13:25:33 -0500 )edit

Actually ROS by Example uses only Python. Its mentioned in that link "Code samples are written in Python. "

Airuno2L ( 2014-09-02 13:36:29 -0500 )edit

Yes. I will buy that one. Thanks for pointing it out.

ish45 ( 2014-09-02 13:42:37 -0500 )edit

Glad to help. If that answers your question please hit the check mark to mark this as answered :)

Airuno2L ( 2014-09-02 14:30:06 -0500 )edit

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answered 2014-09-02 12:41:47 -0500

Rick Armstrong
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If you're going to construct your own simulated robot, I'd start off by playing around with turtlebot_simulator. It took a fair amount of fiddling around to get it built and working on Indigo, but since then it's been an invaluable aid in learning how ROS works, and for debugging our RL robot.

Rick

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What is best resource, tutorials to learn ROS using rospy?

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