diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..b51eba0
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "wiflash_esp32/src/lib/libESTA"]
+	path = wiflash_esp32/src/lib/libESTA
+	url = https://git.company235.com/official/libESTA.git
diff --git a/wiflash_esp32/src/lib/libESTA b/wiflash_esp32/src/lib/libESTA
new file mode 160000
index 0000000..8132fa9
--- /dev/null
+++ b/wiflash_esp32/src/lib/libESTA
@@ -0,0 +1 @@
+Subproject commit 8132fa91b64db287401c8991f4365a8810319fd0