Questions tagged [websocket]

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ROS2 TCP/IP Socket build error

Im quite new to ROS2 humble, so any advice would be appreciated. I am trying to build a socket inside the ROS2 node, so that I can receive some commands from other user. However, I get some build ...
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Whats the common way to setup a websocket client in ROS2 robot?

Design Concept Questions As stated in the title, I am working on a robot that required to send out it state information (safety and monitoring purpose) to a remote backend server. Meanwhile, maintain ...
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How to access my webpage with rosbridge server?

I would like to create an application for control my robot through Internet. I am using raspberry Pi 4 and ROS1 noetic under ubuntu. The wifi connection is the same between raspberry and my laptop ...
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2 answers
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Connecting robot to mobile application via a webserver and webosckets

I'm putting together a project which is a robot that moves around a space on a schedule. The basic idea is to be able to view information from the robot on a mobile application that's written in react ...
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Message Semantics - Unity to ROS over ROSBridge

Hello, I am trying to exchange my message between windows 10 Unity 20.17.2 and ROS1. I can subscribe to my ros topic and I am able to listen to messages in my unity environment sent from ros1. for ...
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How to publish a message from Unity3D to ROS node?

Hello, I am trying to send over msg of type string from Unity to my ROS node that contains the subscriber topic, over rosbridge_websocket. I have already tried the following: ROS-Sharp: With ROS Sharp ...
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1 answer
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How to change IP to connect to ROS from a browser using ROSBRIDGE without changing the code [closed]

Dear community, I have tried to design a web page that allows me to connect to ROS via ROSBRIDGE. If I want to connect to master I have to change the IP in the code using roslibjs like: var ros = new ...
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rosbridge online

Background: I am currently working on a project that wants to remotely receive video stream and send control commands to my ROS robot. I have it working perfectly in localhost by using rosbridge. It ...
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1 answer
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Monitor and control a ROS robot via a server

Hello. What do you think is the best solution to transparently forward some of the ROS topics of a robot to the special server computer through the Internet? So several operators could (via web ...
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1 answer
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Multiple rosbridge_websocket nodes

I'd like to run two rosbridge_websocket nodes - the only difference would be their names. What's the easiest way to do that? I was thinking that I could create my own ROS package based on the ...
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1 answer
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rosbridge cannot connect to secure websocket, timed out error

I am using rosbridge and roslibjs to connect to ros. I wrote an HTML page that publishes a simple std_msgs::String message. I need to serve this page through HTTPS, therefore I have to connect to ...
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problem with roslib

i try to excute the script simple.html from robridge tutorial page. i have this error : ReferenceError: ROSLIB is not defined simple.html: in line 11 Originally posted by ahmedx724 on ROS Answers ...
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rosbridge 2.0 limit bandwith

Hi, I'm using rosbridge to have a web-based user interface with my robot. As some of the message I want to check are published quite fast, the amount of CPU and bandwith required is high. There is any ...
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1 answer
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communication with android over the Internet

I'd like to make an app on Android that will receive: -stream video from cameras -map -some other data like velocity, state of program etc. The app should also send some requests. Could You help me ...
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1 answer
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rosbridge websocket ssl connection aborted

Hi all, I can't establish a wss-connection between Firefox 33.1 and roslaunch rosbridge_server rosbridge_websocket.launch. I always get an Alert(21) in Wireshark. My Setup: SERVER 192.168.2.199: ...
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Rosbridge - isConnected()?

Hi, I'm working with Rosbridge at the moment, and trying to determine from the ROS side (server) whether the websocket connection is ok. Is there a isConnected() or ping() type function that will ...
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3 answers
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Get list of topics via rosbridge and websocket

I am currently using rosbridge 2.0 to communicate with ROS via websocket. In connection with this I would like to retrieve a list of all topics through my interface. As I can read from the rosbridge ...
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1 answer
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Rosbridge 2.0 with raw sockets

Hello everyone, i was using the Rosbrigde (http://rosbridge.org/doku.php) in version 1.0 to connect to a custom robot framework (written in c++) through a raw TCP Socket (and that worked). Now i ...
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