msp430G2553，单片机，基于grace，轻松实现片内AD测量电压值,WDT，串口发送，通过串口控制程序，串口及时显示测量电压值，Timer0，Timer1的，综合程序，是电子竞赛预备题。-msp430G2553, SCM, grace-based, easily measure the voltage value, WDT, the serial port to send on-chip AD and control procedures through the serial port,