Initial commit

control/_Control.py

@@ -0,0 +1,81 @@
+
+import datetime
+import logging
+from threading import Thread
+import time
+
+from w1thermsensor import W1ThermSensor
+
+import heat
+
+class Control(Thread):
+    def __init__(self, heat_pin: int):
+        super(Control, self).__init__()
+        self.__run_condition = True
+        self.__runtime = datetime.timedelta(hours=2)
+        self.__on_time = None
+        self.__off_time = datetime.datetime.now() + self.__runtime
+        self.__heat = heat.Heat(heat_pin)
+        self.__state = False
+        self.__target_temperature = 80.0
+        self.__span_temperature = 1.5
+        self.__sensor = W1ThermSensor()
+        self.__log = logging.getLogger()
+
+    def run(self):
+        while self.__run_condition:
+            if self.__state:
+                # check for elapsed runtime
+                now = datetime.datetime.now()
+                if now > self.__off_time:
+                    self.__state = False
+                    self.__log.info("switch off after %s", self.__runtime)
+                    continue
+                # check for regulating
+                temperature = float(self.__sensor.get_temperature())
+                if self.__heat.state() and temperature > (self.__target_temperature + self.__span_temperature):
+                    self.__heat.off()
+                    self.__log.info("switch heat off for regulating")
+                    self.__log.info("current temperature: %s", temperature)
+                else:
+                    if not self.__heat.state() and temperature < (self.__target_temperature - self.__span_temperature):
+                        self.__heat.on()
+                        self.__log.info("switch heat on for regulating")
+                        self.__log.info("current temperature: %s", temperature)
+            else:
+                if self.__heat.state():
+                    self.__heat.off()
+            time.sleep(0.8)
+
+    def stop(self):
+        self.__run_condition = False
+        self.join()
+
+    def set_runtime(self, runtime):
+        dtime = datetime.datetime.strptime(runtime, "%H:%M")
+        self.__runtime = datetime.timedelta(hours=dtime.hour, minutes=dtime.minute)
+
+    def get_runtime(self):
+        return self.__runtime
+
+    def set_target_temperature(self, target_temperature):
+        self.__target_temperature = float(target_temperature)
+
+    def get_target_temperature(self):
+        return self.__target_temperature
+
+    def switch_on(self):
+        self.__on_time = datetime.datetime.now()
+        self.__off_time = self.__on_time + self.__runtime
+        self.__state = True
+
+    def switch_off(self):
+        self.__state = False
+
+    def state(self):
+        return self.__state
+
+    def time_to_switch_off(self):
+        if self.__state:
+            return self.__off_time - datetime.datetime.now()
+        return None

control/__init__.py

@@ -0,0 +1 @@
+from ._Control import Control