利用新型单片机c8051f020进行的编程，该单片片机具有很高的性价比。-new SCM C8051f020 use the program, the single pieces of the machine has a price.

自编的数字万用表串口程序,万用表型号为MAS344,价格只有200元左右.-self serial digital multimeter procedures, MAS344 Multimeter model, price is only around 200 yuan.

c开发程序，汽车防盗系统，设计出通过串口收发短消息和控制硬件开关量的程序；- With the economic developmet, the vehicle theft-against technology has upgraded from the original mechanical mode to the latest GSM/GPS-based network mode after several generations. But in China, considering