目前,在开设自由落体实验时,绝大多数物理实验室都采用纯硬件的毫秒计时器。由于该类计时器无数据存储及处理功能,故想要利用它们通过一次自由落体来测量出一系列时间和位移并进而得到重力加速度和验证自由落体位移公式是不可能的。为解决上述问题,我们开发了一套TP801单板机自由落体实验系统,该系统可用于开设学生实验,也可开设演示实验, At present, when setting up a free-fall experiment, most physical laboratories use pure hardware millisecond timers. Because this type of timer has no data storage and processing functions, it is impossible to use them to measure a series of time and displacements through a free fall, and then to obtain the gravitational acceleration and verify the free fall displacement formula. In order to solve the above problems, we have developed a TP801 single board machine free fall experiment system, which can be used to set up student experiments, but also to set up demonstration experiments.