diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e426dbd
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+.pio
+.pioenvs
+.piolibdeps
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..080e70d
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,10 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}
diff --git a/platformio.ini b/platformio.ini
new file mode 100644
index 0000000..8692913
--- /dev/null
+++ b/platformio.ini
@@ -0,0 +1,4 @@
+[env:lilypadatmega328]
+platform = atmelavr
+board = lilypadatmega328
+framework = arduino
diff --git a/Sketch/Sketch.ino b/src/main.cpp
similarity index 90%
rename from Sketch/Sketch.ino
rename to src/main.cpp
index 342ea11..2488397 100644
--- a/Sketch/Sketch.ino
+++ b/src/main.cpp
@@ -1,11 +1,20 @@
 /*************************************
- * Kerstboomshield voor Arduino
+ * Kerstmuts
  * Author:   Michel Bats
  * Website:  www.batssoft.nl
- * Version:  1.0.0
- * Revision: 20141216
+ * Version:  1.0.1
+ * Revision: 20231112
+ * 
+ * v1.0.1 20231112
+ *   Conversie naar PlatformIO door toevoeging van extra bibliotheek (Arduino.h)
+ *   Bestandextensie ino naar cpp
+ * v1.0.0 20141216
+ *   Initiële versie
  *************************************/
 
+// Bibliotheken
+#include <Arduino.h>
+
 // Bepalingen
 int ledPin[]        = {
   5 ,6};           // Uitgangen met PWM-mogelijkheden
@@ -73,6 +82,3 @@ void loop()  {
   // Pauze inlassen met het aantal ms volgens delayPotValueMap
   delay(currentDelay);
 }
-
-
-