- added stirrer and hendi

- refactored

components/actor/heater_hendi.py

@@ -0,0 +1,41 @@
+from components.aheater import AHeater
+from hendiCtrl import HendiCtrl
+
+
+class HeaterHendi(AHeater):
+	def __init__(self, port, baudrate):
+		AHeater.__init__(self)
+		self.power_set = self.get_power_min()
+		self.is_active = False
+		self.power_eff = 0
+		self.hendi = HendiCtrl(port, baudrate)
+
+	def get_power_min(self):
+		caps = self.hendi.getCapabilties()
+		return caps['pwr_watts_min']
+
+	def get_power_max(self):
+		caps = self.hendi.getCapabilties()
+		return caps['pwr_watts_max']
+
+	def activate(self, enable):
+		self.is_active = enable
+		if enable:
+			self.hendi.setSwitch(1)
+		else:
+			self.hendi.setSwitch(0)
+
+	def is_activated(self):
+		s = self.hendi.getSwitch()
+		return '1' in s
+
+	def process(self):
+		power_eff = self.power_set if self.is_active else 0
+		self.hendi.setPowerWatts(power_eff)
+
+	def setPower(self, power):
+		self.power_set = max(self.get_power_min(), min(self.get_power_max(), power))
+
+	def getPower(self):
+		result = self.hendi.getPowerWatts()
+		return result