diff --git a/Projects-using-ArduinoJson.md b/Projects-using-ArduinoJson.md
index ca25240..a2ff5bb 100644
--- a/Projects-using-ArduinoJson.md
+++ b/Projects-using-ArduinoJson.md
@@ -88,4 +88,10 @@ https://github.com/firepick1/FireStep
 
 Emulate a Philips Hue bridge running on an ESP8266 using the Arduino IDE and addressable WS2812b NeoPixels.
 
-https://github.com/probonopd/ESP8266HueEmulator
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+https://github.com/probonopd/ESP8266HueEmulator
+
+## Key.Zone
+
+Inspired by various Home Automation Systems. The arduino devices receive data (via radios) in JSON format and process/react and return in JSON again. Core logic revolves around ArduinoJson. Thanks a lot.
+
+https://key.zone
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