1）　　8路数据采集功能

通过调节可变电阻实现0-5V的电压输出作为8路输入信号使用，每路信号用2位LED显示采集的结果。报警：任意一路超过某一门限（可自己设定）时，发出报警（声音+灯闪烁，并通过灯指示是哪一路报警），同时停止采集。

2）　　计数功能

利用计数功能键，实现每按一次按键，LED显示加1，从0-99计数。

3）　　秒表功能

只用一个键控制。按下一个按键后时钟启动，从零开始计时，计时间隔0.01秒，再按一次后停止。再按一次后清零。如此循环。

-3 function keys set up: When a function key is pressed after entering the corresponding functional model. Three features are:

1) 8-Channel Data Acquisition function by adjusting the variable resistor to achieve the 0-5V voltage output 8-channel input signal as the use of signals each with two LED display of the results collected. Alarm: any way above a certain threshold (which can be set), the issue of police (voice+ lights flicker, and through which light is the way the police instructions), at the same time to stop collecting. 2) counting function count function keys to use to achieve every time button, LED display plus 1, counting from 0-99. 3) with a stopwatch function keys control only. After pressing a button to start the clock, to start from scratch time, time interval 0.01 seconds, and then after a stop. And then once cleared. Such a cycle.