单片机控制1420语音芯片发声程序。同时通过485通信方式与外界进行数据通信。-1420 single-chip control procedures audible voice chip. At the same time through the 485 means of communication with the outside world for data communications.
实验学习型电子钟包括红外线控制密码da控制led亮度ad转换语音转换闹铃-Experimental study electronic bell, including infra-red control password da control led brightness ad-speech converter alarm