sdk docs

docs/README.md

@@ -26,6 +26,8 @@ This Guide is split up into multiple "subguides":
 
 - [Development](./development.md): For all developers. This covers how to build firmware from source and set up a development environment.
 
+- [SDKs](./sdk.md): SDKs for Chameleon, useful if you want to develop your own application to control Chameleon.
+
 - [Protocol](./protocol.md): The gory details of the communication protocol, useful if you want to develop your own client.
 
 ### Miscellaneous 

docs/sdk.md

@@ -0,0 +1,12 @@
+# SDKs
+
+SDKs for Chameleon, useful if you want to develop your own application to control Chameleon.
+
+## [taichunmin/chameleon-ultra.js](https://github.com/taichunmin/chameleon-ultra.js)
+
+[![GitHub Repo stars](https://img.shields.io/github/stars/taichunmin/chameleon-ultra.js?logo=github)](https://github.com/taichunmin/chameleon-ultra.js/stargazers)
+[![GitHub issues](https://img.shields.io/github/issues/taichunmin/chameleon-ultra.js)](https://github.com/taichunmin/chameleon-ultra.js/issues)
+[![npm](https://img.shields.io/npm/v/chameleon-ultra.js.svg?logo=npm)](https://www.npmjs.org/package/chameleon-ultra.js)
+[![MIT License](https://img.shields.io/github/license/taichunmin/chameleon-ultra.js)](https://github.com/taichunmin/chameleon-ultra.js/blob/master/LICENSE)
+
+A JavaScript SDK for ChameleonUltra support Web Bluetooth API, Web Serial API and Node.js. There are also some demos for using the SDK.