diff --git a/arduino_testLA b/arduino_testLA
new file mode 100644
index 0000000..cf280b9
--- /dev/null
+++ b/arduino_testLA
@@ -0,0 +1,20 @@
+#define led A5
+#define led2 13
+
+void setup() {
+  pinMode(led, OUTPUT);
+  pinMode(led2, OUTPUT);
+}
+
+
+void loop() {
+  
+  digitalWrite(led, HIGH);
+  delayMicroseconds(random(200));
+  digitalWrite(led2, HIGH);
+  delayMicroseconds(random(200));
+  digitalWrite(led2, LOW);
+  delayMicroseconds(random(200));
+  digitalWrite(led, LOW);
+  delayMicroseconds(random(200));
+}