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无线遥控式语音门铃张晓东无线遥控门铃采用了专用遥控模块和语音集成电路芯片，电路简单、制作容易、工作稳定可靠，具有普遍实用价值。一、工作原理无线遥控式语言门铃的电路如图１所示。按钮开关ＳＢ和无线遥控发射模块Ａ１、电源Ｅ１组成发射器，无线遥控接收模块Ａ２...
Wireless remote control doorbell Zhang Xiaodong wireless remote control doorbell using a dedicated remote control module and voice integrated circuit chip, the circuit is simple, easy to make, stable and reliable, with universal practical value. First, the working principle Wireless remote control doorbell circuit shown in Figure 1. Button switch SB and wireless remote control transmitter module A1, E1 power transmitter, wireless remote control receiver module A2 ...