Modifications

async def loop( din ):

async def loop( din ):

     """ called again and again (like Arduino) """

     """ called again and again (like Arduino) """

     # User script here  

     # Asynchronous user script here  

din.setup( setup=None, loop=loop )

din.setup( setup=None, loop=loop )

The {{fname|setup()}} call is used to specify a ''setup'' method (optional) and a ''loop'' method to be called.

The {{fname|setup()}} call is used to specify a ''setup'' method (optional) and a ''loop'' method to be used by the AsyncIO implementation.

The optional ''setup'' method is called to specify some initialization routine. It is quite useful to declare additional sensor, additional components for your project.

The optional ''setup'' parameter is used to specify some initialization routine. ''setup'' is quite useful to declare sensors and components in your project.

Once {{fname|din.run()}} is called:

Once {{fname|din.run()}} is called:

* the {{fname|def setup( din )}} is called once (if any)

* the {{fname|def setup( din )}} is called once (if any declared)

* the {{fname|async def loop( din )}} is continuously executed!  

* the {{fname|async def loop( din )}} is continuously executed!  

The ''loop'' execution can even be monitored with a watchdog.  

The ''loop'' execution can even be monitored with a watchdog.  

The {{fname|din}} parameter passed to ''setup'' and ''loop'' method provide a full access to all the behaviors and features of the DIN case.

The ''din'' parameter passed to {{fname|setup}} and {{fname|loop}} methods provide a full access to all the behaviors and features of the DIN case.

In normal condition, the {{fname|din.run()}} never exits. However, exit can happens:

In normal condition, the {{fname|din.run()}} never exits. However, exit can happens: