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1-2-8-USART串口发送程序
说明： 串口发送,根据用户要求，可以有三种发送方式(Serial port transmission, according to user requirements, there are three ways to send)
- 2020-08-24 15:22:21下载
- 积分：1
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High-power-inverter-and-ac-drive
本书是“国际电气工程先进技术译丛”之一，该书分14章，介绍了各种大功率变频器的拓扑结构及原理、传动系统的组成，以及与此相关的各种先进控制策略。书中还同时详细地给出了多个专题的相关技术背景。可作为学术研究、产品开发等专业技术人员或产品工程师参考。介绍了大功率变频器及中压交流传动的最新发展技术，包括各种大功率变频器拓扑结构、脉冲调制方法、先进控制策略以及工业产品设计经验。包括250多个图表，对所有的主要理论和控制方法都给出了计算机仿真结果和试验波形。对实际产品设计和工业应用中各种问题，书中也进行了介绍。(This book is one of the "international electrical engineering advanced technology translations", the book chapter 14 points, this paper introduces all kinds of high-power inverter topology and principle, the components of the drive system, and the related all kinds of advanced control strategy.Is also given in detail in the book more than one project related technical background.Can be used as an academic research, product development and other professional and technical personnel, or product engineer reference.High-power inverter are introduced and the latest development of medium voltage ac drive technology, including all kinds of high power converter topology, pulse modulation methods, advanced control strategy and industrial product design experience., including more than 250 chart for all the major theories and control methods are the computer simulation results and experiment waveforms are given.For all kinds of problems in the actual product design and industrial application, th)
- 2014-01-13 11:12:08下载
- 积分：1
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Unsigned-four-byte-operation
无符号四字节运算,只是子程序，可直接复制到程序里，然后调用。无符号双字节运算。(Unsigned four byte operation, only the subroutine, can be directly copied into the program, and then call. Unsigned byte operations.)
- 2013-11-28 21:02:52下载
- 积分：1
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main
c codevision code for reading a 4x4 keypad and showind the number on a 7segment
- 2009-09-11 15:47:31下载
- 积分：1
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113、程序
说明： 113、基于51单片机老人生理智能监控GSM短信
本设计由STC89C52单片机电路+火焰传感器电路+加速度传感器+心率传感器电路+SIM800A_GSM模块电路+电源电路组成。
该系统实时监测老人是否跌倒，是否周围有火以及心率情况。
1、如果火焰传感器检测到火焰，则GSM向特定手机发送：Fire！
2、如果ADXL345检测到老人跌倒了，则GSM向特定手机发送：Fall！
3、如果心率传感器检测到老人心率高于120，则GSM向特定手机发送：High Heart！
4、注意本设计一次上电上述情况每个只能触发一次上报短信，不会连续发送，防止反复发送，请放心使用。
5、短信处理过程有GSM信号灯指示。
6、GSM模块是SIM800A，该模块和SIM900A电路程序完全兼容外观外形一模一样。(GSM SMS for elderly physiological intelligent monitoring based on 51 MCU
This design consists of STC89C52 MCU circuit + flame sensor circuit + acceleration sensor + heart rate sensor circuit + sim800a_ GSM module circuit + power supply circuit.
The system monitors whether the elderly fall down, whether there is fire around and heart rate in real time.
1. If the flame sensor detects a flame, the GSM sends: fire!
2. If adxl345 detects that an old man has fallen, the GSM sends a specific mobile phone: fall!
3. If the heart rate sensor detects that the heart rate of the elderly is higher than 120, the GSM sends a message to a specific mobile phone: high heart!
4. Pay attention to the design of a power on, each of the above conditions can only trigger a report SMS, will not be sent continuously, to prevent repeated sending, please rest assured to use.
5. SMS processing process is indicated by GSM signal light.)
- 2020-09-02 09:14:08下载
- 积分：1
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STC_UART_GPS_OK
芯片：STC12C5A60S2
晶振：16MHz 波特率：4800bps
引脚定义：串行口1： 发送————TxD/P3.1； 接收————RxD/P3.0
串行口2： 发送————TxD2/P1.3；接收————RxD2/P1.2
功能描述：STC12双串口通信（中断方式）
当串行口1接收GPS数据后(4800波特率)，将此数据由串行口2发送出去
当串行口2接收数据后，将此数据由串行口1发送出去(Chip: STC12C5A60S2
Crystal: 16MHz Baud Rate: 4800bps
Pin definitions: Serial port 1: Send TxD/P3.1 receiving RxD/P3.0
Serial port 2: Send TxD2/P1.3 receiving RxD2/P1.2
Function Description: STC12 Two serial communication (interrupt)
When a serial port after receiving GPS data (4800 baud), this data is sent out by the serial port 2
When the serial port 2 receives data, this data is sent out by the serial port 1
)
- 2020-11-06 08:29:49下载
- 积分：1
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DS18B20-serial-number-read-and-match
DS18B20序列号的读取与匹配源代码
液晶直接显示(DS18B20 match the serial number and the source code to read LCD display directly)
- 2011-01-18 15:52:27下载
- 积分：1
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单通道ADC
msp430芯片内部ad12模数转换程序源码。。(MSp430 chip internal Ad12 analog-to-digital conversion program source code.)
- 2020-06-18 03:40:01下载
- 积分：1
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secwatch
一个简易秒表程序，可以帮助学习单片机定时器功能的朋友理解定时器用法，有按键控制运行暂停等(A simple stopwatch program that can help you learn microcontroller timer function usage timer understanding friend , there are buttons to control operation pause)
- 2016-04-30 15:28:32下载
- 积分：1
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fftandifft
用STM32做的FFT以及IFFT程序，MDK开发环境，带有TFT驱动显示程序(STM32 do with FFT and IFFT program, MDK development environment with TFT display driver program)
- 2021-04-20 01:08:51下载
- 积分：1
