diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..571b22f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "external/Adafruit_Python_DHT"]
+	path = external/Adafruit_Python_DHT
+	url = https://github.com/adafruit/Adafruit_Python_DHT.git
diff --git a/external/Adafruit_Python_DHT b/external/Adafruit_Python_DHT
new file mode 160000
index 0000000..c9407aa
--- /dev/null
+++ b/external/Adafruit_Python_DHT
@@ -0,0 +1 @@
+Subproject commit c9407aa0506321bbc63ec8ba3c59fc21291f4746