Use the internal pullup to be able to hook up this sketch directly to an energy meter with S0 output

If no pullup is used, the reported usage will be too high because of the floating pin

libraries/MySensors/examples/EnergyMeterPulseSensor/EnergyMeterPulseSensor.ino

@@ -70,6 +70,10 @@ void setup()
 {  
   // Fetch last known pulse count value from gw
   request(CHILD_ID, V_VAR1);
+
+  // Use the internal pullup to be able to hook up this sketch directly to an energy meter with S0 output
+  // If no pullup is used, the reported usage will be too high because of the floating pin
+  digitalWrite(DIGITAL_INPUT_SENSOR,HIGH);
   
   attachInterrupt(INTERRUPT, onPulse, RISING);
   lastSend=millis();