diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d2703eb
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "SerialPortUSB_ARTERY_AT32F403A_407"]
+	path = SerialPortUSB_ARTERY_AT32F403A_407
+	url = git@gitea.ficom-it.info:ELEMENT/SerialPortUSB_ARTERY_AT32F403A_407.git
diff --git a/SerialPortUSB_ARTERY_AT32F403A_407 b/SerialPortUSB_ARTERY_AT32F403A_407
new file mode 160000
index 0000000..a39bd60
--- /dev/null
+++ b/SerialPortUSB_ARTERY_AT32F403A_407
@@ -0,0 +1 @@
+Subproject commit a39bd60dc88d308eabd1835119b1d91a56d20033