Topics in ROS
 
My name is Tiziano
and if you are new to the channel, welcome
this is video #2 of our ROS series
and this video is going to be about TOPICS
now topics are probably the most important
part of ROS
they are like channels that connect nodes
in which messages pass through
so when a node has a message to share
it subscribes to a topic and publishes the message
and if another node is interested to that message
subscribes to the topic and reads the message
everything is really straightforward and is handled by
the ROS MASTER node, that is a node that can run everywhere in your network
and makes sure that all the nodes are connected together
In our case on this example ROS Master runs
on the Raspberry Pi
while we are connected with our laptop
to the Raspberry Pi access point
so, let's dive into the tutorial
