Matthew Kleinsmith's profile - activity

sudo apt-get update
sudo apt-get install -y \
                arduino \
                ros-kinetic-rosserial-arduino \
                ros-kinetic-rosserial
cd ~/sketchbook/libraries
mv ros_lib ~/ros_lib_backup
rosrun rosserial_arduino make_libraries.py ~/sketchbook/libraries

make_libraries.py might raise an error about tf. The error hasn't affected my applications.

The above script is from the official instructions but with "indigo" replaced with "kinetic".

I've only done this with Ubuntu 16.04.

How do I make a rosserial_arduino-based subscriber read the newest message of a topic? (Edit: By "newest message" I mean the message that was published most recently.)

I tried to set the queue size of the subscriber to 1, but I couldn't find the string "queue" in the ros_lib Arduino files; and so I believe it's not a feature of rosserial_arduino.

Here's an example of a rosserial_arduino subscriber from a rosserial_arduino tutorial:

ros::Subscriber<std_msgs::Empty> sub("toggle_led", &messageCb );

void setup()
{
  pinMode(13, OUTPUT);
  nh.initNode();
  nh.subscribe(sub);
}