diff --git a/a/arduino.ino b/a/arduino.ino
new file mode 100644
index 00000000..76867354
--- /dev/null
+++ b/a/arduino.ino
@@ -0,0 +1,11 @@
+
+void setup()
+{
+        Serial.begin(9600);
+        Serial.println("Hello world!");
+}
+
+void loop()
+{
+
+}