diff --git a/.gitmodules b/.gitmodules
index e9d0382..7fe2e3d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "thingsboard-gateway-ws-demo"]
 	path = thingsboard-gateway-ws-demo
 	url = http://th.local.t-aaron.com:13000/THENG/thingsboard-gateway-ws-demo.git
+[submodule "thingsboard-html-demo"]
+	path = thingsboard-html-demo
+	url = http://th.local.t-aaron.com:13000/THENG/thingsboard-html-demo.git
diff --git a/thingsboard-html-demo b/thingsboard-html-demo
new file mode 160000
index 0000000..0416ce4
--- /dev/null
+++ b/thingsboard-html-demo
@@ -0,0 +1 @@
+Subproject commit 0416ce4c85b5485bc695e87dff82efd7c997feae