diff --git a/.gitmodules b/.gitmodules
index 65da80e..f1998a7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "modules/rtos"]
 	path = modules/rtos
 	url = https://github.com/SuperHouse/esp-open-rtos.git
+[submodule "modules/sdk"]
+	path = modules/sdk
+	url = https://github.com/pfalcon/esp-open-sdk.git
diff --git a/modules/sdk b/modules/sdk
new file mode 160000
index 0000000..c70543e
--- /dev/null
+++ b/modules/sdk
@@ -0,0 +1 @@
+Subproject commit c70543e57fb18e5be0315aa217bca27d0e26d23d