diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..6ad122e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "deps/nanopb"]
+	path = deps/nanopb
+	url = https://github.com/nanopb/nanopb
diff --git a/deps/nanopb b/deps/nanopb
new file mode 160000
index 0000000..b97aa65
--- /dev/null
+++ b/deps/nanopb
@@ -0,0 +1 @@
+Subproject commit b97aa657a706d3ba4a9a6ccca7043c9d6fe41cba