diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..10689fb
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/OTALibrary"]
+	path = lib/OTALibrary
+	url = git@git.emaker.limited:MicrocontrollerCD/OTALibrary.git
diff --git a/lib/OTALibrary b/lib/OTALibrary
new file mode 160000
index 0000000..bf21b61
--- /dev/null
+++ b/lib/OTALibrary
@@ -0,0 +1 @@
+Subproject commit bf21b6180372d086df030221dffec9757af46e41