Question 1

How do I set up rosbridge for ROS 2 Humble?

Accepted Answer

Install the rosbridge_suite package via ROS 2 package managers (e.g., apt for Ubuntu), then run the rosbridge_server node; detailed instructions are on the ROS wiki, but note the Humble release is tracked in a separate branch as mentioned in the README.

Question 2

What is the latency introduced by rosbridge?

Accepted Answer

Rosbridge adds latency due to JSON parsing and network transport over WebSockets or TCP; for web interfaces it's usually acceptable, but for real-time control with high-frequency data, native ROS communication is recommended to avoid delays.

Question 3

Is rosbridge secure enough for production robots?

Accepted Answer

Rosbridge itself doesn't enforce strong security by default; you should implement authentication, use encrypted connections like WSS, and possibly integrate with ROS 2's SROS2, as the suite focuses more on accessibility than security out-of-the-box.

Question 4

Rosbridge vs ROS 2 DDS: which is better for web integration?

Accepted Answer

Rosbridge is specifically designed for web and external client integration with its JSON and WebSocket support, while ROS 2 DDS is optimized for low-latency, ROS-native systems; choose rosbridge when bridging to non-ROS environments like browsers.

Question 5

Can I use rosbridge with Android or iOS apps?

Accepted Answer

Yes, via client libraries such as jrosbridge for Java (Android) or by implementing the JSON protocol in Swift/Objective-C; WebSocket support makes it compatible with mobile networking, though you may need to handle network stability and authentication.

Question 6

How to handle authentication with rosbridge WebSockets?

Accepted Answer

Implement authentication at the transport layer, such as using secure WebSockets (WSS) with token-based auth or custom server-side checks; the rosbridge suite doesn't provide built-in auth, so you'll need to extend it or rely on ROS 2 security if available.

rosbridge_suite

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