def scenario_2():
"""
Declare system with the inheritance based API
"""
class MyEvent(Event):
def on_start(self, context, event):
print(context, '=>', event)
print('STARTED')
def on_cycle_begin(self, context, event):
print('LOOP STARTED')
def on_cycle_end(self, context, event):
print('LOOP FINISHED')
context.stop()
def on_stop(self, context, event):
print('FINISHED')
context.exit()
def on_exit(self, context, event):
print('EXITING')
context = Context()
event = MyEvent(context)
# Make event active
event.activate()
# Start looping
context.start()
def scenario_1():
"""
Declare events with the decorator based API
"""
# Create containers
context = Context()
event = Event(context)
@event
def on_start(context, event):
print(context, '=>', event)
print('STARTED')
@event
def on_cycle_begin(context, event):
print('LOOP STARTED')
@event
def on_cycle_end(context, event):
print('LOOP FINISHED')
context.stop()
@event
def on_stop(context, event):
print('FINISHED')
context.exit()
@event
def on_exit(context, event):
print('EXITING')
# Make event active
event.activate()
# Start looping
context.start()
## INFO ##
## INFO ##
# Import kb modules
from kb.RPi2 import Context, Event
from kb.RPi2.sensors import LED, FourKeys
# Create containers
context = Context()
event1 = Event(context)
event2 = Event(context)
# Create exit signals
@event1
def on_exit(*args, **kwargs):
print('EXITING (from event1)')
@event2
def on_exit(*args, **kwargs):
print('EXITING (from event2)')
# Use variables to store pins in use
led_pin = 1
four_keys_pins = {'pin_row' : 2,
'pin_col1' : 3,
'pin_col2' : 4,
'pin_col3' : 5,
'pin_col4' : 6}
## INFO ##
## INFO ##
# Import kb modules
from kb.RPi2 import Context, Event
from kb.RPi2.sensors import LED, FourKeys
# Create containers
context = Context()
event1 = Event(context)
event2 = Event(context)
# Create exit signals
@event1
def on_exit(*args, **kwargs):
print('EXITING (from event1)')
@event2
def on_exit(*args, **kwargs):
print('EXITING (from event2)')
# Use variables to store pins in use
led_pin = 1
four_keys_pins = {
'pin_row': 2,
'pin_col1': 3,
'pin_col2': 4,
'pin_col3': 5,
