diff --git a/Make a Toggle Switch with Button Switch/src/main.cpp b/Make a Toggle Switch with Button Switch/src/main.cpp
index cb9fbba..7d0f940 100644
--- a/Make a Toggle Switch with Button Switch/src/main.cpp	
+++ b/Make a Toggle Switch with Button Switch/src/main.cpp	
@@ -1,18 +1,28 @@
 #include <Arduino.h>
 
-// put function declarations here:
-int myFunction(int, int);
+int buttonPin = 2;
+int ledPin = 10;
+int buttonState = 1;
+int lastButtonState = 1;
+int ledState = LOW;
+
 
 void setup() {
   // put your setup code here, to run once:
-  int result = myFunction(2, 3);
+  Serial.begin(115200);
+  pinMode(buttonPin, INPUT);
+  pinMode(ledPin, OUTPUT);
+
 }
 
 void loop() {
   // put your main code here, to run repeatedly:
-}
-
-// put function definitions here:
-int myFunction(int x, int y) {
-  return x + y;
+  buttonState = digitalRead(buttonPin);
+  if (lastButtonState == HIGH && buttonState == LOW)
+  {
+    ledState = !ledState;
+    digitalWrite(ledPin, ledState);
+  }
+  lastButtonState = buttonState;
+  delay(50); // 50ms debounce
 }
\ No newline at end of file