Merge pull request #4 from boryszef/master

Add support for the MLX90615 sensor

Author: mcauser

mlx90614.py

@@ -26,17 +26,7 @@
 
 import ustruct
 
-_REGISTER_TA = const(0x06)     # ambient
-_REGISTER_TOBJ1 = const(0x07)  # object
-_REGISTER_TOBJ2 = const(0x08)  # object2
-
-class MLX90614:
-	def __init__(self, i2c, address=0x5a):
-		self.i2c = i2c
-		self.address = address
-		_config1 = i2c.readfrom_mem(address, 0x25, 2)
-		_dz = ustruct.unpack('<H', _config1)[0] & (1<<6)
-		self.dual_zone = True if _dz else False
+class SensorBase:
 
 	def read16(self, register):
 		data = self.i2c.readfrom_mem(self.address, register, 2)
@@ -51,14 +41,14 @@ def read_temp(self, register):
 		return temp;
 
 	def read_ambient_temp(self):
-		return self.read_temp(_REGISTER_TA)
+		return self.read_temp(self._REGISTER_TA)
 
 	def read_object_temp(self):
-		return self.read_temp(_REGISTER_TOBJ1)
+		return self.read_temp(self._REGISTER_TOBJ1)
 
 	def read_object2_temp(self):
 		if self.dual_zone:
-			return self.read_temp(_REGISTER_TOBJ2)
+			return self.read_temp(self._REGISTER_TOBJ2)
 		else:
 			raise RuntimeError("Device only has one thermopile")
 
@@ -73,3 +63,26 @@ def object_temp(self):
 	@property
 	def object2_temp(self):
 		return self.read_object2_temp()
+
+class MLX90614(SensorBase):
+
+	_REGISTER_TA = 0x06
+	_REGISTER_TOBJ1 = 0x07
+	_REGISTER_TOBJ2 = 0x08
+
+	def __init__(self, i2c, address=0x5a):
+		self.i2c = i2c
+		self.address = address
+		_config1 = i2c.readfrom_mem(address, 0x25, 2)
+		_dz = ustruct.unpack('<H', _config1)[0] & (1<<6)
+		self.dual_zone = True if _dz else False
+
+class MLX90615(SensorBase):
+
+	_REGISTER_TA = 0x26
+	_REGISTER_TOBJ1 = 0x27
+
+	def __init__(self, i2c, address=0x5b):
+		self.i2c = i2c
+		self.address = address
+		self.dual_zone = False