ExampleSubscriber.cpp

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/*
 * rosserial_embeddedlinux subscriber example
 *
 * Prints a string sent on a subscribed ros topic.
 * The string can be sent with e.g.
 * $ rostopic pub chatter std_msgs/String -- "Hello Embedded Linux"
 */
 
#include <ros.h>
#include <std_msgs/String.h>
#include <stdio.h>
 
ros::NodeHandle  nh;
char *rosSrvrIp = "192.168.15.149";
 
void messageCb(const std_msgs::String& received_msg){
        printf("Received subscribed chatter message: %s\n", received_msg.data);
}
ros::Subscriber<std_msgs::String> sub("chatter", messageCb );
 
int main()
{
        //nh.initNode();
        nh.initNode(rosSrvrIp);
        nh.subscribe(sub);
 
        while(1) {
                  sleep(1);
                  nh.spinOnce();
        }
}