Pull get_temp out of main loop

rpiserver/main.py

@@ -13,23 +13,15 @@ import relays
 import data
 
 HI_SETPOINT = 40.0
-LO_SETPOINT = 30.0
+LO_SETPOINT = HI_SETPOINT - 10.0
 
+PUMP_RELAY = relays.RELAY1
 FAN_RELAY = relays.RELAY3
 
-async def main():
+async def get_temp():
-    relays.init_relays()
-
-    while True:
-        try:
     temps = await w1therm.get_temperatures()
     if len(temps) != len(data.PROBES):
         raise
-        except:
-            logging.error('Problem reading temperature probes! Setting fan on and sleeping.')
-            relays.set_relay(FAN_RELAY, relays.RELAY_ON)
-            await asyncio.sleep(60)
-            continue
 
     temperature_log = []
     for id_, temp in temps.items():
@@ -38,6 +30,21 @@ async def main():
 
     temperature_list = list(temps.values())
     temperature_mean = mean(temperature_list)
+    return temperature_mean
+
+
+async def main():
+    relays.init_relays()
+    relays.set_relay(PUMP_RELAY, relays.RELAY_ON)
+
+    while True:
+        try:
+            temperature_mean = await get_temp()
+        except:
+            logging.error('Problem reading temperature probes! Turning fan on and sleeping 60s.')
+            relays.set_relay(FAN_RELAY, relays.RELAY_ON)
+            await asyncio.sleep(60)
+            continue
 
         if temperature_mean > HI_SETPOINT:
             logging.info('Turning fan on')

rpiserver/relays.py

@@ -31,7 +31,7 @@ async def test():
     for r in RELAYS:
         set_relay(r, RELAY_ON)
         await asyncio.sleep(0.5)
-        #set_relay(r, RELAY_OFF)
+        set_relay(r, RELAY_OFF)
 
 if __name__ == '__main__':
     init_relays()