diff --git a/sketches/Markvandenheuvel/Arduino counting test 1/Arduino counting test 1.ino b/sketches/Markvandenheuvel/Arduino counting test 1/Arduino counting test 1.ino
new file mode 100644
index 0000000..c98a698
--- /dev/null
+++ b/sketches/Markvandenheuvel/Arduino counting test 1/Arduino counting test 1.ino	
@@ -0,0 +1,14 @@
+char z[] = "words are fun!"; //14 character
+int x=0; 
+
+void setup() {
+  Serial.begin(9600);
+}
+void loop() {
+  
+    while(x<15){
+      Serial.println(z[x]);
+      delay(100); // pause loop for 100ms
+      x++; //x + 1 + 1
+    }
+}
diff --git a/sketches/max_sketch/tetris/tetris.ino b/sketches/max_sketch/tetris/tetris.ino
new file mode 100644
index 0000000..a5b99af
--- /dev/null
+++ b/sketches/max_sketch/tetris/tetris.ino
@@ -0,0 +1,53 @@
+void setup() {
+  // put your setup code here, to run once:
+
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+tone (11, 392, 40);
+delay (300);
+tone (11, 293, 40);
+delay (200);
+tone (11, 311, 80);
+delay (200);
+
+tone (11, 349, 40);
+delay (300);
+tone (11, 349, 80);
+delay (200);
+tone (11, 293, 40);
+delay (200);
+
+tone (11, 261, 40);
+delay (300);
+tone (11, 261, 40);
+delay (200);
+tone (11, 311, 80);
+delay (200);
+
+tone (11, 392, 40);
+delay (300);
+tone (11, 349, 40);
+delay (200);
+tone (11, 311, 80);
+delay (200);
+
+tone (11, 293, 40);
+delay (300);
+tone (11, 311, 80);
+delay (200);
+
+tone (11, 349, 40);
+delay (300);
+tone (11, 392, 80);
+delay (200);
+
+tone (11, 311, 40);
+delay (300);
+tone (11, 261, 80);
+delay (300);
+
+tone (11, 261, 80);
+delay (3000);
+}