Removed light sensor backend. As most of them are analog sensors, they can't communicate directly with the Raspberry - instead a plugin like serial (e.g. Arduino) or MCP3008 should act as a proxy

platypush/backend/sensor/light/__init__.py

@@ -1,50 +0,0 @@
-import time
-
-import RPi.GPIO as gpio
-
-from platypush.backend import Backend
-from platypush.message.event.sensor.light import LightOnEvent, LightOffEvent
-
-
-class SensorLightBackend(Backend):
-    state = None
-
-    def __init__(self, pin, threshold=0.5, poll_seconds=0.5, **kwargs):
-        super().__init__(**kwargs)
-
-        self.pin = pin
-        self.threshold = threshold
-        self.poll_seconds = poll_seconds
-
-    def send_message(self, msg):
-        pass
-
-    def get_state(self):
-        return self.state
-
-    def run(self):
-        super().run()
-
-        gpio.setmode(gpio.BCM)
-        gpio.setup(self.pin, gpio.IN)
-        self.logger.info('Initialized light sensor backend on pin {}'.format(self.pin))
-
-        try:
-            while not self.should_stop():
-                value = float(gpio.input(self.pin))
-                new_state = True if value >= self.threshold else False
-
-                if self.state is not None and new_state != self.state:
-                    if new_state is True:
-                        self.bus.post(LightOnEvent())
-                    else:
-                        self.bus.post(LightOffEvent())
-
-                self.state = new_state
-                time.sleep(self.poll_seconds)
-        finally:
-            gpio.cleanup()
-
-
-# vim:sw=4:ts=4:et:
-