diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..7125fa9
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "apps/room_control"]
+	path = apps/room_control
+	url = https://github.com/jsl12/room_control
diff --git a/apps/room_control b/apps/room_control
new file mode 160000
index 0000000..a00f10a
--- /dev/null
+++ b/apps/room_control
@@ -0,0 +1 @@
+Subproject commit a00f10a96710f8f98137ea6e2d7a484d26d69d71