update

Author: jeanboydev

README.md

@@ -14,6 +14,12 @@
 
 # 目录
 
+## 瞎玩
+
+<img src="https://raw.githubusercontent.com/jeanboydev/android-readthefuckingsourcecode/master/resources/images/hardware/led/20.jpg" alt="流光溢彩效果" width="404" height="303" style="max-width:100%;">
+
+- :+1:[流光溢彩】物联网入门 ESP8266 + WS2812B 制作流光溢彩灯带](https://github.com/jeanboydev/Android-ReadTheFuckingSourceCode/blob/master/article/hardware/esp8266_ws2812.md)
+
 ## 图解 Android 系列
 
 - :+1:[图解 Android 系列（一）揭秘 Android 系统启动过程](https://github.com/jeanboydev/Android-ReadTheFuckingSourceCode/blob/master/article/android/framework/01_system_start.md)