Index: leahi_dialin/td/modules/air_pump.py
===================================================================
diff -u -rc5bfcf84ed942ca5841bf9de155aa0f495b4d28d -r889e26ae0fcb2888938463588b01ca159d2f4565
--- leahi_dialin/td/modules/air_pump.py	(.../air_pump.py)	(revision c5bfcf84ed942ca5841bf9de155aa0f495b4d28d)
+++ leahi_dialin/td/modules/air_pump.py	(.../air_pump.py)	(revision 889e26ae0fcb2888938463588b01ca159d2f4565)
@@ -96,16 +96,21 @@
             can_interface = self.can_interface)
 
 
-    def cmd_air_pump_set_state(self, state: int, power: int) -> int:
+    def cmd_air_pump_set_state(self, state: int, dutyCycle: float) -> int:
         """
         Constructs and sends the air pump set state command.
 
         Constraints:
             Must be logged into TD.
         @param state:  integer - 1 to stop the pump, 2 to activate it
-        @param power:  integer - 0-255 value to set the air pump power
-        @return: 1 if successful, zero otherwise
+        @param dutyCycle:  float - 0-100 value to set the air pump duty cycle
+        @return: 1 if successful, zero otlherwise
         """
+
+        if dutyCycle < 0 or dutyCycle > 100:
+            return 0
+
+        power = int((dutyCycle/100) * 255)
         sts = integer_to_bytearray(state)
         pwr = integer_to_bytearray(power)
         payload = sts + pwr