diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..024667d2
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "bluetooth-raspberrypi/default"]
+	path = bluetooth-raspberrypi/default
+	url = https://github.com/RoEdAl/alarm-bluetooth-raspberrypi
diff --git a/bluetooth-raspberrypi/default b/bluetooth-raspberrypi/default
new file mode 160000
index 00000000..b4397a85
--- /dev/null
+++ b/bluetooth-raspberrypi/default
@@ -0,0 +1 @@
+Subproject commit b4397a85dd0656ef9e8fbd58b8a6c0183e42b97c