diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..cb89126
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "cores/arduino/kendryte-standalone-sdk"]
+	path = cores/arduino/kendryte-standalone-sdk
+	url = https://github.com/sipeed/kendryte-standalone-sdk
diff --git a/cores/arduino/kendryte-standalone-sdk b/cores/arduino/kendryte-standalone-sdk
new file mode 160000
index 0000000..1743492
--- /dev/null
+++ b/cores/arduino/kendryte-standalone-sdk
@@ -0,0 +1 @@
+Subproject commit 174349202037a760e1865210b15a0703566e8064