hermonir's profile - activity

I'm using ROSBridgeLib in Unity3D 2017.1 to connect to ROS on Ubuntu.

The turtlesim project works fine. I can control the turtle from Unity. I wrote a test subscriber to see talker messages ("/chatter") and it works fine as well.

When I tried connecting to mavros topics, for example "/mavros/global_position/compass_hdg", ROSBridge immediately disconnects the client. It says:

[INFO] [1505825883.664602]: [Client 21] Subscribed to /mavros/global_position/compass_hdg [INFO] [1505825883.910471]: Client disconnected. 0 clients total.

Here is my subscriber code:

using ROSBridgeLib;
using ROSBridgeLib.std_msgs;
using ROSBridgeLib.turtlesim;
using System.Collections;
using SimpleJSON;
using UnityEngine;

public class MavrosGlobalpositionCompassHdg : ROSBridgeSubscriber {

    public new static string GetMessageTopic() {
        return "/mavros/global_position/compass_hdg";
    }  

    public new static string GetMessageType() {
        return "std_msgs/Float64";
    }

    public new static ROSBridgeMsg ParseMessage(JSONNode msg) {
        return new Float64Msg(msg);
    }

    public new static void CallBack(ROSBridgeMsg msg) {
        Float64Msg hdg = (Float64Msg) msg;
        Debug.Log("MAVROS message: " + hdg.ToString());
    }
}

Thanks for any help.

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