集无线门铃和无线防盗报警器于一身的无线门铃报警器的制作，由于采用了AT89C2051单片机作为中央处理芯片，使得该系统的功能扩展比较方便，对于整个系统如需改变某种设置，只要更改相应的软件即可-Set the wireless doorbell and wireless burglar alarm wireless doorbell in a production of alarm, the use of AT89C2051 microcontroller as the central processing chip, making the system more convenient extensions, for the whole system need to change some settings, as long as the changes to the corresponding The software can be