diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e93cb53
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "external/cJSON"]
+	path = external/cJSON
+	url = https://github.com/DaveGamble/cJSON.git
diff --git a/external/cJSON b/external/cJSON
new file mode 160000
index 0000000..b45f48e
--- /dev/null
+++ b/external/cJSON
@@ -0,0 +1 @@
+Subproject commit b45f48e600671feade0b6bd65d1c69de7899f2be