- added stirrer

- many other improvements

git-svn-id: http://moon:8086/svn/projects/HendiControl@116 fda53097-d464-4ada-af97-ba876c37ca34

Control/brewpi/stirrer.py

@@ -0,0 +1,52 @@
+from astirrer import AStirrer
+
+class Stirrer(AStirrer):
+	def __init__(self, params):
+		self.params = params
+		self.rpm = 0
+		self.cycleTime = 1
+		self.dutyCycle = 1
+		self.cycleCounter = 0
+		self.isOn = 0
+		self.isMasterOn = 0
+
+	def process(self):
+		dt = self.params["dt"]
+
+		self.cycleCounter -= dt
+		if self.cycleCounter <= 0:
+			self.cycleCounter = self.cycleTime
+
+		if self.cycleCounter <= (self.cycleTime * self.dutyCycle):
+			if not self.isOn:
+				print ("Stirrer: On")
+				self.isOn = 1
+		else:
+			if self.isOn:
+				print ("Stirrer: Off")
+				self.isOn = 0
+
+	def setRpm(self, rpm):
+		print ("Stirrer: Set RPM to {} rpm".format(rpm))
+		self.rpm = rpm
+
+	def setCycleTime(self, time):
+		print ("Stirrer: Set cycle time to {} s".format(time))
+		self.cycleTime = time
+
+	def setDutyCycle(self, dutyCycle):
+		print ("Stirrer: Set duty cycle to {} %".format(100*dutyCycle))
+		self.dutyCycle = dutyCycle
+
+	def getRpm(self):
+		if self.isOn and self.isMasterOn:
+			return self.rpm
+		return 0
+
+	def start(self):
+		self.isMasterOn = 1
+		print("Stirrer: switched On")
+
+	def stop(self):
+		self.isMasterOn = 0
+		print("Stirrer: switched Off")