Paulo's profile - activity

Hi,

I am new to ROS and programing and I would like some advices to develop a ROS package/node that reads a radio signal, so far I can only access it from its IPs address from a browser like a internet wifi modem, and pusblish it so I could use it in a ROS network.

Any Advices, papers, links, to start this journey ???

Thanks a lot in advance.

Hello, it helped me indeed. Thanks. I am able to get my data through a PHP script now. Is it possible to use it with R

Nice . I'll check that as well. Thank you

Thanks for your reply. That's a good start and I'll take a look :)

Hi. It's basically a rocket m900, one access point and one client connect via wifi. I would like to monitor it and send

Publishing a radio signal into a ROS network Hi, I am new to ROS and programing and I would like some advices to deve

How to start creating a package to read a signal and publish it in a ROS network Hi, I am new to ROS and programing an

Hello, I am having a problem with matlab and ROS. I would like to subscribe /ar_pose_marker in matlab but i am getting a error

Thats the Matlab code:

clear,close, clc;

%addpath(genpath('/home/Downloads/email'));
%addpath('/home/Downloads/email');

global pos;
 setenv('ROS_MASTER_URI','http://paulo-Inspiron-7537:11311')
 setenv('ROS_IP','192.168.1.2')

rosinit('http://paulo-Inspiron-7537:11311','NodeHost','192.168.1.2','NodeName','/teste')
camera = rossubscriber('/ar_pose_marker',@getPose);

Thats the error that I get:

Initializing global node /teste with NodeURI http://192.168.1.2:34676/
Error using qr_pose (line 13)
Failed to create a subscriber with topic name /ar_pose_marker and type ar_track_alvar_msgs/AlvarMarkers.

And if I try to do rostopic echo /ar_pose_marker on matlab I also get these error:

>> rostopic echo /ar_pose_marker
Failed to create a subscriber with topic name /ar_pose_marker and type ar_track_alvar_msgs/AlvarMarkers.

There is no problem in ROS Linux terminal, the rostopic echo is working and also a Subscribe code that I made on cpp.

Does anybody have a clue ? Edit: I am using Kinetic on Ubuntu 16. Other things are working on matlab like subscribing /turtle1/pose Thanks for your help, I really appreciate it !!!