class Application:
def __init__(self, **kwargs):
self.verbose = kwargs.get('verbose', DEFAULT_VERBOSE)
self.webcam = Webcam(**kwargs)
self.gpio = GPIO(inputs = INPUT_PINS, outputs = OUTPUT_PINS)
def main_loop(self):
i = 0
try:
self.gpio.export()
while True:
button_state = self.gpio[SNAP_BUTTON_PIN]
self.gpio[SNAP_LED_PIN] = button_state
if button_state:
dt = datetime.datetime.now()
filename_prefix = dt.strftime("%Y-%m-%d_%H_%M_%S")
filename_suffix = "_img%03d" % i
self.webcam.take_photo(filename_prefix = filename_prefix,
filename_suffix = filename_suffix,
blocking = True,
)
self.gpio[SNAP_LED_PIN] = button_state
time.sleep(SLEEP_TIME)
except KeyboardInterrupt:
if self.verbose:
print "user aborted capture...goodbye"
finally:
self.gpio.unexport()
def __init__(self, pin):
GPIO.export(pin)
GPIO.direction(pin, GPIO.DIR_OUT)
self._pin = pin
self._value = GPIO.VAL_LOW
