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红外通信是利用950nm近红外波段的红外线作为传递信息的媒体,即通信信道。发送端采用脉时调制(PPM)方式,将二进制数字信号调制成某一频率的脉冲序列,并驱动红外...
红外通信是利用950nm近红外波段的红外线作为传递信息的媒体,即通信信道。发送端采用脉时调制(PPM)方式,将二进制数字信号调制成某一频率的脉冲序列,并驱动红外发射管以光脉冲的形式发送出去;接收端将接收到的光脉转换成电信号,再经过放大、滤波等处理后送给解调电路进行解调,还原为二进制数字信号后输出。-Infrared communication is the use of near infrared 950nm infra-red as the transmission of information media, namely communication channel. The sending end when the use of pulse modulation (PPM) approach will be a binary digital signal into a frequency modulation of the pulse sequence, and driver fired infrared tube to the form of light pulses sent receiver will receive the pulse of light conversion to electrical signals , and then, after amplification, filtering and other treatment to the demodulation circuit after demodulation, reduced to a binary digital signal after the output.
- 2022-09-28 23:15:02下载
- 积分:1
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射频卡资料,对射频卡分类、应用、开发工具等都有较为详细的介绍。...
射频卡资料,对射频卡分类、应用、开发工具等都有较为详细的介绍。-RF card, RF card classification, applications, development tools, and others have a more detailed introduction.
- 2022-10-27 05:15:04下载
- 积分:1
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程序能够实现将十二位的二进制数5V对应fffH变换成一路0~5V的电压。
精度方面:在使用时上下波动范围大约是0~2fH能保证高位寄存器准确;
调试过程...
程序能够实现将十二位的二进制数5V对应fffH变换成一路0~5V的电压。
精度方面:在使用时上下波动范围大约是0~2fH能保证高位寄存器准确;
调试过程中遇到了一系列问题:(1)p0口的使用需接上拉电阻,内部没有带电阻;(2)调试的过程最好使用单步运行,以便于察看寄存器的内容;(3)对系统板不熟悉,一些硬件方面容易出问题,像口连接,电源、地的连接。(4)直流电源使用不准确,内部的各个电源输出是独立的,需要共地。
-procedures to achieve 12 to a binary number 5V counterparts fffH transform all the way into the 0- 5V voltage. Accuracy : the use of fluctuating ranges of 0 ~ 2fH can guarantee accurate high register; debugging process encountered a series of questions : (1) p0 I need to connect to the widening use of resistance, with no internal resistance; (2) the process of commissioning the best use of single-step operation, in order to inspect the contents of Register; (3) The right not familiar with the system board, Some hardware problems are likely to occur, such as connectors, power, and connectivity. (4) DC power supply use of inaccurate, all within the Power output is independent, to the total needs.
- 2023-03-22 15:25:03下载
- 积分:1
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用可调电阻调节电压值作为模拟温度的输入量,当温度低于30℃时,发出长嘀报警声和光报警,当温度高于60℃时,发出短嘀报警声和光报警。测量的温度范围在0-99℃。...
用可调电阻调节电压值作为模拟温度的输入量,当温度低于30℃时,发出长嘀报警声和光报警,当温度高于60℃时,发出短嘀报警声和光报警。测量的温度范围在0-99℃。-Adjustable voltage regulator with resistance values of the input analog temperature, when the temperature is below 30 ℃, the issue of longalarm sound and light alarm, when the temperature is higher than 60 ℃, short issuedalarm sound and light alarm. Measurement of the temperature range of 0-99 ℃.
- 2022-02-26 11:00:10下载
- 积分:1
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非接触式ic卡读写程序,希望对大家有帮助
非接触式ic卡读写程序,希望对大家有帮助-Non-contact ic card reader program, and they hope to have everyone help
- 2022-05-08 15:29:58下载
- 积分:1
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winbond的w77e58双串口测试
winbond的w77e58双串口测试-the dual serial test
- 2022-07-03 09:21:11下载
- 积分:1
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在51单片机系统中利用专用以太网控制芯片RTL8019AS实现以太网接口...
在51单片机系统中利用专用以太网控制芯片RTL8019AS实现以太网接口-51 single-chip microcomputer system in the use of a dedicated control chip RTL8019AS Ethernet Ethernet interface
- 2022-12-18 00:35:03下载
- 积分:1
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pic18fxxx单片机实用软件与接口技术――C语言及其应用
pic18fxxx单片机实用软件与接口技术――C语言及其应用-Singlechip pic18fxxx Practical Software and Interface Technology- C language and its application
- 2022-03-03 13:39:51下载
- 积分:1
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使用ATmage8制作的USB下载线,采用软件模拟时序
使用ATmage8制作的USB下载线,采用软件模拟时序-ATmage8 produced by the use of USB download cable, using simulation software Sequencers
- 2022-07-09 10:39:18下载
- 积分:1
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DIY多功能转换器(已调试通过)。
本原理图可以实现USB/RS232、USB/RS422、USB/RS485接口转换功能。只需安装USB驱动程序即可实现U...
DIY多功能转换器(已调试通过)。
本原理图可以实现USB/RS232、USB/RS422、USB/RS485接口转换功能。只需安装USB驱动程序即可实现USB转串口的功能,简单方便。另外只需对电路图稍作改动即可实现RS232/RS422或RS232/RS485转换功能。
心动了吗?不如赶快行动,拥有属于自己的五合一的接口转换器吧!-DIY Multi-function Converter (has debug through). The schematic diagram can be achieved USB/RS232, USB/RS422, USB/RS485 interface conversion. Simply install the USB driver can achieve the function of USB to serial, easy and convenient. Also just to make a minor amendment to the circuit can be realized RS232/RS422 or RS232/RS485 conversion. Echocardiography it? Action as soon as possible, with their own-one interface converter吧!
- 2022-02-04 11:25:07下载
- 积分:1