使用arduino单片机实现小车的自动平衡控制，包括小车姿态获取---卡尔曼滤波，和PID参数整定。解压后整个文件夹放到arduino的libraries文件夹里面。只需打开并烧写Self_balancing.ino这个代码例程。(Using Arduino microcontroller to achieve automatic balancing control of the car, including car attitude acquisition --- Calman filter, and PID parameter tuning. After decompression, the entire folder is placed in the libraries folder of arduino. Just open and burn the code routine for writing Self_balancing.ino.)