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First welcome to ROS and this forum!

If you are using the arduino micro, please add to your Arduino code add:

#define USE_USBCON

just before

#include <ros.h>

Just in case you are using an Arduino Micro.

As far as i know, rosserial uses 57600 as default baud rate, so if you do not changed it, just try it without _baud:=xyz:

rosrun rosserial_python serial_node.py /dev/ttyACM0

If you want to change your baudrate in your Arduino code by using:

nh.getHardware()->setBaud(BAUD)

(where BAUD can be 9600) before you initialize the node. Here don't forget to call rosserial with _baud:=9600

Greetings and happy coding,

krl

First welcome to ROS and this forum!

If you are using the arduino micro, please add to your Arduino code add:code:

#define USE_USBCON

just before

#include <ros.h>

Just in case you are using an Arduino Micro.

As far as i know, rosserial uses 57600 as default baud rate, so if you do not changed it, just try it without _baud:=xyz:

rosrun rosserial_python serial_node.py /dev/ttyACM0

If you want to change your baudrate in your Arduino code by using:

nh.getHardware()->setBaud(BAUD)

(where BAUD can be 9600) before you initialize the node. Here don't forget to call rosserial with _baud:=9600

Greetings and happy coding,

krl