diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..2b4d322
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "nanopb"]
+	path = nanopb
+	url = git@github.com:nanopb/nanopb.git
diff --git a/nanopb b/nanopb
new file mode 160000
index 0000000..7f88274
--- /dev/null
+++ b/nanopb
@@ -0,0 +1 @@
+Subproject commit 7f88274070afa5edfaf608f4d8e32f3d3c1de139