1 files changed, 66 insertions, 0 deletions
diff --git a/heating.py b/heating.py
new file mode 100644
index 0000000..e780cd2
--- /dev/null
+++ b/heating.py
@@ -0,0 +1,66 @@
+import RPi.GPIO as GPIO
+from abc import ABC, abstractmethod
+
+# Abstract Class for heating
+class heating(ABC):
+    def __init__(self, db):
+        self.temperature = 0
+        self.taget = 0
+        self.on = False
+        self.db = db
+        self.setup()
+
+    def up(self, increase=0.5):
+        self.target += increase
+        self.update()
+
+    def down(self, decrease=0.5):
+        self.target -= decrease
+        self.update()
+
+    def update(self):
+        if self.temperature < self.target:
+            self.on = True
+        else:
+            self.on = False
+    '''
+        Abstract methods used so that configuration for different
+        device types other than a Raspberry Pi is easier in the future
+        and all other methods can simply be inherited
+    '''
+
+    # Method for initial setup according to device GPIO
+    @abstractmethod
+    def setup(self):
+        pass
+    # Method to turn the heating on
+    @abstractmethod
+    def turn_on(self):
+        pass
+    # Method to turn the heating off
+    @abstractmethod
+    def turn_off(self):
+        pass
+    # Method to get the current actual temperature, can be changed for
+    #   different types of temperature sensor when inheriting this
+    #   class
+    @abstractmethod
+    def get_temperature(self):
+        pass
+
+# inherrited from heating class
+# overriding abstract methods from heating class
+class rpi_heating(heating):
+    def setup(self):
+        # GPIO Numbers instead of board numbers
+        GPIO.setmode(GPIO.BCM) 
+        # https://tutorials-raspberrypi.com/raspberry-pi-control-relay-switch-via-gpio/
+        # constant value for the relay number
+        self.RELAY = 17
+        GPIO.setup(self.RELAY, GPIO.OUT) # GPIO Assign mode
+    def turn_on(self):
+        GPIO.output(self.RELAY, GPIO.LOW) # out
+    def turn_on(self):
+        GPIO.output(self.RELAY, GPIO.HIGH) # on
+    def get_temperature(self):
+        pass