diff --git a/README.md b/README.md
index 42cbcb1..1b2701b 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,8 @@
 HM485-Lib
 =========
 
+## Outdated / Not maintained anymore.
+Please use:
+https://github.com/ThorstenPferdekaemper/HBWired
+
 Framework to develop HM-Wired compatible devices on base of Arduino Hardware