Hands-On ROS for Robotics Programming

Object recognition in the real world

First, remember to point the ROS master URI to the robot as usual:

$ export ROS_MASTER_URI=http://gopigo3.local:11311

Apply this for every new Terminal in the laptop, or include the line in the .bashrc file. The physical robot configuration is as shown here, with GoPiGo3 in front of a small yellow ball:

Run the following two commands in two independent Terminals in the Raspberry Pi:

r1 $ roslaunch mygopigo gopigo3.launchr2 $ roslaunch raspicam_node camerav2_410x308_30fps.launch

The packages you are using in the preceding are the ones in Chapter 6, Programming in ROS- Commands and Tools. So make sure you ...