diff --git a/src/main.cpp b/src/main.cpp
index 582127b..9d68bcd 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -40,8 +40,12 @@ Adafruit_MAX31865 thermo = Adafruit_MAX31865(5, 23, 19, 18);
 // 100.0 for PT100, 1000.0 for PT1000
 #define RNOMINAL  1000.0
 
+int LED_Blue = 2;
+
 void setup() {
   Serial.begin(115200);
+  pinMode (LED_Blue, OUTPUT);
+  digitalWrite (LED_Blue, HIGH);
   Serial.println("Adafruit MAX31865 PT100 Sensor Test!");
 
   thermo.begin(MAX31865_2WIRE);  // set to 2WIRE or 4WIRE as necessary
@@ -83,5 +87,6 @@ void loop() {
     thermo.clearFault();
   }
   Serial.println();
+  digitalWrite (LED_Blue, !digitalRead(LED_Blue));
   delay(1000);
 }
\ No newline at end of file