用Multisim做的无线电子门铃的仿真，课程设计可用，亲试仿真成功-Do with Multisim simulation of wireless electronic doorbell, curriculum design available, pro-test simulation success

无线门铃端设计，是日常中使用最多的产品，这里给出无线门铃的整体方案并对设计进行分析(he design of wireless doorbell is the most used product in daily use. The whole scheme of wireless doorbell is given and the design is analyzed)

基于STC89C52的门铃设计，用Keil打开(The design of STC89C52 based on open Keil)