lpc2103开发的超声波测距电路源程序，采用先发射超声波，中断捕捉回波，依据时间测距离-lpc2103 Ultrasonic Ranging

将已经获取的到的经纬度集合，在高德地图实现轨迹回放，添加开始暂停继续功能，亲测可用。要实现咕咚类似的运动轨迹的，可以做下参考。(The acquired latitude and longitude set is replayed on the Gaud map, and the function of starting pause and continuing is added to make it available for personal measurement. To achieve