基于市场常见的51单片机，正合了数码管、LED、数模、模数等程序，无需多次下载，程序自动执行，适合检测51开发板的大部功能是否正常。-Based on the market common 51 single-chip, is a combination of digital tube, LED, digital module, modulus and other procedures, without the need to download many times, the program automatically　s, suitable for testing the 51 development board, most of the functions are normal.