Update README.md

Author: thibmaek

README.md

@@ -95,6 +95,7 @@ Contributions *very welcome* but first see [Contributing](#contributing)
 - [PiE-Ink](http://www.htxt.co.za/2017/02/07/pie-ink-is-a-raspberry-pi-name-tag-that-uses-an-e-ink-display/) - E-ink nametag display running on a Pi Zero. ![Supports Raspberry Pi Zero](/media/badges/rpi-0.png)
 - [Whispering Mirror](http://whisperingwallproject.com/whisperingmirror/) - Interactive soundart installation using the Hifiberry DAC.
 - [clockOS](https://github.com/iGerli/clockOS) - simple smart desktop clock using a Raspberry Pi display.
+- [Zelda Home Automation](https://www.raspberrypi.org/blog/zelda-home-automation/) - Home automation based on sound recognition from notes played on an ocarina.
 
 ## Resources
 ### Articles