Request for PID DDAA

Author: ellisgl

1209/DDAA/index.md

@@ -0,0 +1,11 @@
+---
+layout: pid
+title: DDAA Device
+owner: EllisGL
+license: BSD 3-Clause
+site: https://github.com/ellisgl/MewtureButton-Firmware
+source: https://github.com/ellisgl/MewtureButton-Firmware
+---
+This is for device that speaks Ding Ding Ack Ack (DDAA) protocol over serial.
+In this case, the Mewture Button is a device that uses this protocol to get and set mute status of audio input port.
+The PID would help quickly detect these devices.