diff --git a/arduino_program/arduino_program.ino b/arduino_programs/arduino_programmer/arduino_programmer.ino
similarity index 98%
rename from arduino_program/arduino_program.ino
rename to arduino_programs/arduino_programmer/arduino_programmer.ino
index 1d59bc3..3b410b5 100644
--- a/arduino_program/arduino_program.ino
+++ b/arduino_programs/arduino_programmer/arduino_programmer.ino
@@ -1,3 +1,5 @@
+// This code is meant to be used on an Arduino Nano or Uno.
+
 #define SHIFT_DATA 2
 #define SHIFT_CLK 3
 #define SHIFT_LATCH 4
diff --git a/arduino_programs/arduino_tester/arduino_tester.ino b/arduino_programs/arduino_tester/arduino_tester.ino
new file mode 100644
index 0000000..9e45e71
--- /dev/null
+++ b/arduino_programs/arduino_tester/arduino_tester.ino
@@ -0,0 +1,16 @@
+// This program is supposed to be used with an arduino Mega.
+#define DATA_0 2
+#define DATA_7 9
+
+#define OUTPUT_ENABLE 52
+// Address pins jump increment by 2 for easier connections.
+#define ADDRESS_0 22
+#define ADDRESS_15 50
+
+void setup() {
+
+}
+
+void loop() {
+
+}