Example1

DUNE: "Hello world"

This is a simple example on how to create and use tasks in DUNE (with IMC messages).

First assume:

• Dune home directory as $home/dune
• We will use the shortcut "DH>" for Dune home directory
• DBuild> = $home/dune_build (DUNE compilation directory. Try to avoid having the compilation directory inside the repository directory tree)

There are two parts in this exercise:

• Understand how to create tasks
• Create simple tasks to produce a variable (representing some sensor input), consume a variable (representing functions that use the sensor input), and binding these two (produce and consume) tasks for a meaningful interaction.

We will use temperature value for producing and consuming tasks.

• Producer Task: will create a static variable "temperature" and set a value for it then it will be send as an IMC message.
• Consumer Task: will keep searching in the BUS for the variable "temperature" and print it on the screen.
• Producer and Consumer Task interaction: Here, the consumer will consume the temperature variable from the producer task to display the temperature value. Later we will do advanced task interactions.