摘 要 本设计利用已学电路知识，将电路分成红外发射模块、红外接收模块两个模块，完成了红外光通信收发系统设计，以话筒为输入信号， 由发送电路调试后，再由输入电路的红外接收管接收，经由（LM-386）放大，高 通滤波器过滤后，在喇叭（耳机）中听到输入的语音。关键词：红外通信；发射；接收；ABSTRACTThe design used the knowledge of circuit , and it has been divided into three parts as infrared emission circuit module, the infrared receiving module, and temperature transmission module , then we completed the design of infrared communication transceiver system, we used microphone to inpu
