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STM32L4红外发射接收资料

更新时间：2019-10-16 14:46:25 大小：660K 上传用户：hemu01查看TA发布的资源 标签：stm32l4红外发射接收 下载积分：2分 评价赚积分 （如何评价?） 打赏 收藏 评论(0) 举报

资料介绍

Implementation of transmitters and receivers
for infrared remote control protocols with STM32Cube

Infrared radiation is the region of the electromagnetic spectrum that lies between microwaves and visible light.
Infrared radiation has two ranges. Near infrared light is closest in wavelength to visible light, while far infrared is closer to the microwave region of the electromagnetic spectrum.
The shorter waves are the ones used by remote controls. Information is transmitted and received using electromagnetic energy, without using wires.
Infrared technology offers important advantages as a form of wireless communication. Nowadays, almost all audio and video equipment can be controlled using an infrared remote control. At the receiving end, a receiver detects the light pulses, which are processed to retrieve/decode the information they contain.
There are many popular infrared protocol standards used to transmit data via infrared light, such as (among others) RC5 and SIRC.

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AN4834  
Application note  
Implementation of transmitters and receivers  
for infrared remote control protocols with STM32Cube  
Introduction  
Infrared radiation is the region of the electromagnetic spectrum that lies between  
microwaves and visible light.  
Infrared radiation has two ranges. Near infrared light is closest in wavelength to visible light,  
while far infrared is closer to the microwave region of the electromagnetic spectrum.  
The shorter waves are the ones used by remote controls. Information is transmitted and  
received using electromagnetic energy, without using wires.  
Infrared technology offers important advantages as a form of wireless communication.  
Nowadays, almost all audio and video equipment can be controlled using an infrared remote  
control. At the receiving end, a receiver detects the light pulses, which are processed to  
retrieve/decode the information they contain.  
There are many popular infrared protocol standards used to transmit data via infrared light,  
such as (among others) RC5 and SIRC.  
The purpose of this application note is to provide a generic solution for implementing an IR  
transmitter (a remote control device) and receiver using microcontrollers of the STM32F0,  
STM32F3 and STM32L4 series. An example of software implementation is provided for  
RC5 and SIRC protocols. Other protocols are supported and available upon request (for  
further information contact your local STMicroelectronics sales office).  
The infrared transmitter and receiver solutions described in this document are implemented  
using STM32Cube hardware abstraction layer and the X-CUBE-IRREMOTE firmware  
package, available on www.st.com.  
Note:  
Although STM32L4xx MCUs feature the IRTIM, the STM32L476G-EVAL board is not  
equipped with the necessary IR components. The X-CUBE-IRREMOTE therefore does not  
support this EVAL board.  
March 2016  
DocID029012 Rev 1  
1
1

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