media della risultante + fix refresh

sampler/FTSampler.py

@@ -195,7 +195,6 @@ def checkPowerOff():
 
 def calculateValue():
     decimalsCount = int(getRedisVal('SETTINGS:DECIMALS:COUNT'))
-    smoothFact= int(getRedisVal('SETTINGS:SMOOTHING:FACTOR'))
     ch1 = getRedisVal('SETTINGS:CHANNEL:A')
     ch2 = getRedisVal('SETTINGS:CHANNEL:B')
     v1 = getRedisVal('RTDATA:OUT:' + ch1)
@@ -208,8 +207,13 @@ def calculateValue():
     strValIn = newValue
     # EWMA: RILEGGO DA REDIS  vecchio valore
     oldVal = float(redSrv0.get('RTDATA:VALUE'))
-    # effettuo smoothing valore
-    strValIn = (newValue/smoothFact) + (oldVal * (smoothFact-1) / smoothFact)
+    if(oldVal == 0):
+        oldVal = 0.01
+    # se variazione < 50% smooth
+    if((abs(newValue - oldVal) / oldVal) < 0.5):
+        # effettuo smoothing valore
+        eFact = 4
+        strValIn = (newValue/eFact) + (oldVal * (eFact-1) / eFact)
     redSrv0.set('RTDATA:VALUE',round(strValIn,decimalsCount))
 
 # init oggetto lettura da