| Low level quick digital IO | 高性能引脚读写。More efficient digital IO than builtin functions |
| STL for Arduino | 将C++标准库移植到 Arduino。A port of C++ Standard Library to Arduino. |
| TimersOneForAll | Make full use of all your hardware timers on your Arduino board. 充分利用你开发板上所有的硬件计时器 |