51单片机小车识别“开”“停”声音再驱动。

重点在于小车没有AD转换，采集的声音样本是1600位二进制。离线计算找出2个声音的特征。-And then drive the the 51 microcontroller car identification " on"　and " stop"　sound. Focused on the car without AD converter, sound samples collected in 1600 binary. Off-line calculation to identify the characteristics of the two sounds.