非常简单却实用的一款通讯簿,主要特色是支持密码保护功能,可以实现联系人信息的保密.-very simple but practical one Address Book, the main feature is support password protection function, Contact information can achieve confidentiality.

这是一个单片机，串口通讯中对数据进行简单加密的程序代码。-This is a microcontroller, serial communication in a simple data encryption code.