diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..013493e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "rpi-mqtt-ha"]
+	path = rpi-mqtt-ha
+	url = git@git.klelifo.de:projects/rpi-mqtt-ha.git
diff --git a/rpi-mqtt-ha b/rpi-mqtt-ha
new file mode 160000
index 0000000..2f67b9e
--- /dev/null
+++ b/rpi-mqtt-ha
@@ -0,0 +1 @@
+Subproject commit 2f67b9ec610017fe55d629ef0b475e6c1dcae24e