def main():
config.load_config('{}/{}'.format('config', 'test_config.ini'))
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
file_handler = RotatingFileHandler(getattr(config, 'cfg').get('box', 'log_file'),
maxBytes=5242880, backupCount=4)
file_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(formatter)
root_logger = logging.getLogger()
root_logger.addHandler(file_handler)
root_logger.setLevel(logging.DEBUG)
try:
camera = CameraController()
camera.initialize()
camera.capture_and_download('test1')
code_scanner = CodeScanner()
code_information = code_scanner.scan_image('/home/pi/pictures/test1.jpg')
if code_information is not None:
print('Decoded from QRCode: "{}"'.format(code_information.decode('utf8')))
else:
print('No decodable QRCode found')
camera.close()
except ConnectionError as e:
print('Connection Error "%s"' % e)
except CaptureError as e:
print('Capture Error "%s"' % e)
class Phenobox():
def __init__(self):
self.initialize()
self.eventQueue = Queue()
self._logger = logging.getLogger(__name__)
self._logger.setLevel(logging.INFO)
self.door_state = self.input_controller.get_door_state()
def door_state_changed(self, state):
"""
If it is opened while the box is not in the IDLE or ERROR state it will transition to the ERROR state
:param state: The current/new DoorState
:return: None
"""
self.door_state = state
if state == DoorState.OPEN:
if not self.phenobox_statemachine.is_IDLE(
) and not self.phenobox_statemachine.is_ERROR():
self._logger.info('Door Opened while running')
self.phenobox_statemachine.door_opened(error_code=3)
def start_pressed(self, press):
if press == ButtonPress.SHORT:
print(Fore.CYAN + "State: " + self.phenobox_statemachine.state)
if self.phenobox_statemachine.is_IDLE(
) or self.phenobox_statemachine.is_ERROR():
if press == ButtonPress.LONG:
print(Fore.MAGENTA + "Shutdown Requested")
self._logger.info('Shutdown action placed')
self.eventQueue.put(UserEvent.SHUTDOWN)
else:
if self.door_state == DoorState.CLOSED:
print(Fore.BLUE + "Start")
if self.phenobox_statemachine.is_IDLE():
self._logger.info('Start action placed')
self.eventQueue.put(UserEvent.START)
else:
self._logger.info('Restart action placed')
self.eventQueue.put(UserEvent.RESTART)
else:
print(Fore.RED + "Please close the door before starting!")
def initialize(self):
formatter = logging.Formatter(
'%(asctime)s - %(name)s - %(levelname)s - %(message)s')
file_handler = RotatingFileHandler(getattr(config, 'cfg').get(
'box', 'log_file'),
maxBytes=5242880,
backupCount=4)
file_handler.setLevel(logging.INFO)
file_handler.setFormatter(formatter)
root_logger = logging.getLogger()
root_logger.addHandler(file_handler)
init(autoreset=True)
photo_count = getattr(config, 'cfg').getint('box', 'photo_count')
self.illumination = Illumination(
13) # use GPIO pin 13 for illumination PWM control
self.led_controller = LedController()
self.led_controller.initialize()
self.led_controller.blink_green(1)
self.led_controller.blink_blue(1)
self.scanner = CodeScanner()
self.camera_controller = CameraController()
self.camera_controller.initialize()
self.motor_controller = MotorController()
self.motor_controller.initialize()
self.image_handler = ImageHandler(photo_count=photo_count)
self.image_handler.setDaemon(True)
self.image_handler.start()
self.phenobox_statemachine = PhenoboxStateMachine(
self.camera_controller, self.scanner, self.motor_controller,
self.led_controller, self.image_handler, self.illumination,
photo_count)
self.phenobox_statemachine.initialize()
self.input_controller = InputController()
self.input_controller.initialize(self.door_state_changed,
self.start_pressed)
signal.signal(signal.SIGUSR1, sigUSR1_handler)
def _terminate(self):
self.led_controller.clear_all()
self.camera_controller.close()
self.led_controller.blink_green(interval=1)
self.led_controller.blink_blue(interval=1)
self.image_handler.stop()
self.image_handler.join()
self.led_controller.clear_all()
gpio.clean()
def run(self):
shutdown = False
try:
while True:
try:
event = self.eventQueue.get(True, 0.1)
except Empty:
continue
if event == UserEvent.START:
self.phenobox_statemachine.start()
if event == UserEvent.RESTART:
self.phenobox_statemachine.restart()
if event == UserEvent.SHUTDOWN:
shutdown = True
break
except KeyboardInterrupt:
print("keyboard interrupt")
print(Fore.MAGENTA + 'Shutdown initiated')
self._terminate()
if shutdown:
subprocess.call(
['sudo shutdown -h now "System halted by GPIO action" &'],
shell=True)