基于单片机的红外遥控LED设计

Design of infrared remote control LED based on MCU

红外遥控技术让人们生活变得快捷方便的同时,还兼顾节能与安防的作用,与人的生活息息相关。红外遥控技术目前应用最广的就是红外遥控器。为了探究红外遥控的内在原理并延伸红外遥控技术,设计一个基于单片机的红外遥控LED灯系统,实现多个按键控制多个LED灯不同的组合状态。系统分为红外发射和红外接收两个单独的模块,每个模块都由一个单片机分别来负责遥控和接收的功能。红外发射模块是由三极管、电阻和一个红外发射管构成的开关电路,红外发射管会发出频率为38 kHz的脉冲。红外接收电路主要由一个红外接收头连接到接收器。当接收到红外信号时会输出对应电平,以此控制LED灯发光。

Infrared remote control technology not only makes people’s life fast and convenient,but also takes into account the role of energy saving and security,which is closely related to people’s life.Infrared remote control technology is the most widely used infrared remote control.In order to analyze the internal principle of infrared remote control and stretch the infrared remote control technology,this paper designs an infrared remote control LED lamp system ground on single chip microcomputer,which realizes multiple buttons to control different combined states of multiple LED lamps.The system is divided into two separate modules:infrared transmitting and infrared receiving.Each module is controlled and received by a single chip microcomputer.The infrared emission module is a switch circuit composed of a triode,a resistor and an infrared emission tube.The infrared emission tube will emit a pulse with a frequency of 38kHz.The infrared receiving circuit is mainly connected to the receiver by an infrared receiving head.When receiving the infrared signal,the corresponding level will be output to control the LED light.