There was a couple of seconds a couple of seconds ago a question regarding rosserial arduino I accidentally deleted (I wanted to delete my own comment but accidentally deleted the entire question), sorry.
The issue was after running rosrun `rosserial_python serial_node.py _port:=/dev/ttyACM0` the error `unable to sync with device occurred.`
The code looked quite like the example service client code but with a custom message (does not matter for the issue) and some parts commented out:
/*
* rosserial Service Client
*/
#include
#include
#include
ros::NodeHandle nh;
using rosserial_arduino::Test;
ros::ServiceClient client("test_srv");
// std_msgs::String str_msg;
// ros::Publisher chatter("chatter", &str_msg);
// char hello[13] = "hello world!";
void setup()
{
nh.initNode();
nh.serviceClient(client);
// nh.advertise(chatter);
while(!nh.connected()) nh.spinOnce();
nh.loginfo("Startup complete");
}
void loop()
{
Test::Request req;
Test::Response res;
req.input = hello;
client.call(req, res);
// str_msg.data = res.output;
// chatter.publish( &str_msg );
// nh.spinOnce();
delay(100);
}
↧
