diff --git a/.gitmodules b/.gitmodules
index 7df473a..d2a9925 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "components/idf-dfplayermini"]
 	path = components/idf-dfplayermini
 	url = https://git.oit.cloud/morgan/idf-dfplayermini.git
+[submodule "esp-idf"]
+	path = esp-idf
+	url = https://github.com/espressif/esp-idf
diff --git a/esp-idf b/esp-idf
new file mode 160000
index 0000000..3b8741b
--- /dev/null
+++ b/esp-idf
@@ -0,0 +1 @@
+Subproject commit 3b8741b172dc951e18509698dee938304bcf1523