Merge pull request #939 from DeqingSun/add_audio

Request PID C55A for ch55xduino audio device

Author: tannewt

1209/C55A/index.md

@@ -0,0 +1,9 @@
+---
+layout: pid
+title: ch55xduino for audio devices
+owner: ThinkCreate
+license: LGPL
+site: https://github.com/DeqingSun/ch55xduino
+source: https://github.com/DeqingSun/ch55xduino
+---
+ch55xduino is an Arduino-like programming API for the CH55X, a family of low-cost MCS51 USB MCU. The project tries to remove the difficulty of setting up a compiling environment.