The fan machine

The Atm_fan machine has a single purpose. It converts a single event trigger to up to 4 other triggers.

• begin()
• onInput()
• trace()
• EVT_INPUT

Synopsis

#include <Automaton.h>

Atm_fan fan;
Atm_led led[4];
Atm_button button;

void setup() {
 
  led[0].begin( 4 );
  led[1].begin( 5 );
  led[2].begin( 6 );
  led[3].begin( 7 );

  fan.begin() 
    .onInput( led[0], led[0].EVT_TOGGLE )
    .onInput( led[1], led[1].EVT_TOGGLE )
    .onInput( led[2], led[2].EVT_TOGGLE )
    .onInput( led[3], led[3].EVT_TOGGLE );
      
  // One button toggles 4 leds
  button.begin( 2 )
    .onPress( fan, fan.EVT_INPUT );

}

void loop() {
  automaton.run();
}

Atm_fan & begin( void )

Initializes a fan machine.

Atm_fan & onInput( {connector}, {connector-arg} )

Connects one of the four fan outputs to a machine or callback.

void setup() {
  ...
  fan.begin()
    .onInput( led1, led1.EVT_ON ) 
    .onInput( led2, led2.EVT_ON ) 
    .onInput( led3, led3.EVT_ON ) 
    .onInput( led4, led4.EVT_ON ) ;
  ...
}

Atm_fan & trace( Stream & stream )

To monitor the behavior of this machine you may log state change events to a Stream object like Serial.

Serial.begin( 9600 );
fan.trace( Serial );

EVT_INPUT

The fan machine triggers all its outputs on receipt of this event.

  fan.trigger( fan.EVT_INPUT );