diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..a82bfa8
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "smoother/mbed"]
+	path = smoother/mbed
+	url = git@github.com:chamnit/smoother-libmbed.git
diff --git a/smoother/.gitignore b/smoother/.gitignore
index a4f7757..24e5b0a 100644
--- a/smoother/.gitignore
+++ b/smoother/.gitignore
@@ -1,2 +1 @@
 .build
-mbed
diff --git a/smoother/mbed b/smoother/mbed
new file mode 160000
index 0000000..3e2fd16
--- /dev/null
+++ b/smoother/mbed
@@ -0,0 +1 @@
+Subproject commit 3e2fd166402b136ff45defd54df2c79909f1e346