diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..671a25a
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/BLEOTA"]
+	path = lib/BLEOTA
+	url = git@git.emaker.limited:MicrocontrollerCD/BLEOTA.git
diff --git a/lib/BLEOTA b/lib/BLEOTA
new file mode 160000
index 0000000..bf21b61
--- /dev/null
+++ b/lib/BLEOTA
@@ -0,0 +1 @@
+Subproject commit bf21b6180372d086df030221dffec9757af46e41