diff --git a/examples/PID_RelayOutput/PID_RelayOutput.ino b/examples/PID_RelayOutput/PID_RelayOutput.ino
index 17fbe1a..029eda3 100644
--- a/examples/PID_RelayOutput/PID_RelayOutput.ino
+++ b/examples/PID_RelayOutput/PID_RelayOutput.ino
@@ -18,6 +18,8 @@
 
 #define PIN_INPUT 0
 #define RELAY_PIN 6
+#define RELAY_ON LOW
+#define RELAY_OFF HIGH
 
 //Define Variables we'll be connecting to
 double Setpoint, Input, Output;
@@ -31,6 +33,8 @@ unsigned long windowStartTime;
 
 void setup()
 {
+  pinMode(RELAY_PIN,OUTPUT);
+  
   windowStartTime = millis();
 
   //initialize the variables we're linked to
@@ -55,10 +59,13 @@ void loop()
   { //time to shift the Relay Window
     windowStartTime += WindowSize;
   }
-  if (Output < millis() - windowStartTime) digitalWrite(RELAY_PIN, HIGH);
-  else digitalWrite(RELAY_PIN, LOW);
+  if (Output > millis() - windowStartTime)
+  {
+    digitalWrite(RELAY_PIN, RELAY_ON);
+  }
+  else
+  {
+    digitalWrite(RELAY_PIN, RELAY_OFF);
+  }
 
 }
-
-
-