Fixed RMS calculation

delayedswitch.py

@@ -0,0 +1,91 @@
+import machine
+import time
+from machine import Timer
+import urequests as requests
+
+
+#
+# Class for handling alarms and calling FHEM
+#
+class DelayedSwitch:
+
+    def __init__(self,delay,rtc):
+        self.__delay = delay
+        self.__alarm = None
+        self.__is_light_on = False
+        self.__rtc = rtc
+
+
+    def _get_switch_status(self):
+        # check status of light
+        r = self._call_ccu3("http://10.0.10.81/addons/red/switch/state")
+        try:
+            data = r.json()
+            self.__is_light_on = data.get('state', False)
+        except:
+            print("Error parsing JSON response")
+            self.__is_light_on = False
+        r.close()
+        if self.__is_light_on:
+            print("Light is already on.")
+        else:
+            print("Light is off.")
+
+    #
+    # Switch of the light through FHEM
+    def _switch_off_handler(self, alarm):
+        print("Switching light off")
+        r = self._call_ccu3("http://10.0.10.81/addons/red/switch/off")
+        self.__is_light_on = False
+        # close the response object
+        r.close()
+
+    #
+    # Call CCU3
+    #
+    def _call_ccu3(self,url):
+        try:
+            r = requests.get(url)
+        except OSError as oer:
+            print("Resetting. We received OSSeror: ", oer)
+            machine.reset()
+        return r
+
+    def is_light_on(self):
+        return self.__is_light_on
+
+    def set_delay(self,d):
+        self.__delay = d
+
+    def absence(self):
+        # cancel any previous time (if any)
+        if self.__alarm != None:
+            print("Canceling previous alarm")
+            self.__alarm.deinit()
+
+        print("Alarm started to switch off in:", self.__delay)
+        self.__alarm = Timer(-1)
+        self.__alarm.init(period=self.__delay, mode=Timer.ONE_SHOT, callback=self._switch_off_handler)
+        #self.__alarm = Timer.Alarm(self._switch_off_handler, self.__delay, periodic=False)
+
+
+    def presence(self):
+        # cancel any previous time (if any)
+        if self.__alarm != None:
+            print("Canceling previous alarm")
+            self.__alarm.deinit()
+
+        # Check if we light is really on
+        # (in case somebody manually switched it off)
+        if self.__is_light_on:
+            self._get_switch_status()
+
+        #
+        # Switch light on
+        #
+        if not self.__is_light_on:
+            print("Switching light on")
+            r = self._call_ccu3("http://10.0.10.81/addons/red/switch/on")
+            self.__is_light_on = True
+            # close the response object
+            r.close()