diff --git a/Control/ref/vision.cpp b/Control/ref/vision.cpp
new file mode 100644
index 0000000..e699eca
--- /dev/null
+++ b/Control/ref/vision.cpp
@@ -0,0 +1 @@
+const int ARDUINO_IO[16] = {-1/*RX*/, -1/*RX*/, 23, 22, 21, 19, 18, 5, 17, 16, 14, 4, 15, 2, 13, 12}; // Expansion board mapping