diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..5c4fc11
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "matrix"]
+	path = matrix
+	url = https://github.com/hzeller/rpi-rgb-led-matrix.git
diff --git a/matrix b/matrix
new file mode 160000
index 0000000..63b5021
--- /dev/null
+++ b/matrix
@@ -0,0 +1 @@
+Subproject commit 63b5021bc2231154aadda6226bdb5933fc0a064f