本设计针对现有的GSM无线网络，介绍了基于GSM的远程家庭智能报警系统的设计及实现方法。利用各种传感器，如温湿度传感器、加速度传感器等对家中可能出现的各种意外情况进行采集，并通过组建的家中内部无线网络及时向单片机进行中断报警。GSM模块在单片机控制下，利用GSM网络，将各种报警信息通过短信的方式发送到预先设定的手机中，达到了远程无线智能报警的功能。同时,本文在对加速度信号的处理上,采用新的方法,即使用加速度平均值,并设定参考点的思路和方法,有效避免了漏报、误报现象的产生，是系统更加稳定。
Aiming at the existing GSM wireless network, this paper introduces the design and implementation method of GSM based remote home intelligence alarm system. Various kinds of sensors, such as temperature and humidity sensors and accelerometers, are used to collect all kinds of accidents that may occur at home, and the interruption alarm is carried out to the single chip computer in time through the internal wireless network in the home. The GSM module, under the control of single chip microcomputer, uses GSM network to send all kinds of alarm information to the pre set mobile phone by short message, so as to achieve the function of remote wireless intelligent alarm. At the same time, in the process of acceleration signal processing, this paper uses a new method, that is, the use of the average acceleration and the idea and method of setting the reference point, effectively avoiding the phenomenon of misreporting and misreporting, and the system is more stable. (2018-04-08, Objective-C, 2586KB, 下载2次)
STM8L052 的LCD驱动显示程序。STM8的LCD驱动器驱动比较复杂，没有规律，显示段码8，在每位上都不同，如何显示更简便。请看本程序。
STM8L052 LCD driver display program. STM8 LCD driver drive more complex, there is no law, code display section 8, on each different, how to display easier. Look at this program. (2015-09-29, Objective-C, 2KB, 下载94次)
说明：小路有传感器 p1.0，有车时，两路按照时间交换红绿灯，无车时，大路一直绿灯，小路绿灯时，若
无车立即向小路红灯、大路绿灯转换。
Cross-country road road traffic lights program
Description: path with sensors p1.0, have the car, according to the time two-way exchange of traffic lights, no car, the road has been green, green lane, if the
No red car immediately to the road, the road green conversion. (2014-07-17, Objective-C, 12KB, 下载1次)
一个洗衣机程序，将洗衣的全过程（泡浸-洗涤-漂洗-脱水）预先设定好N个程序，洗衣时选择其中一个程序，打开水龙头和启动洗衣机开关后洗衣的全过程就会自动完成，洗衣完成时由蜂鸣器发出响声。
A washing machine program，The whole process of washing (Soak- wash- rinse- dehydration) N pre-set programs, select a washing program, open the faucet and start the whole process of laundry washing machine will switch automatically when the laundry is done by buzzer sound. (2014-02-23, Objective-C, 8934KB, 下载6次)
S3F9454，只接VDD，GND
在第16脚（P0.3)外接一只1K电阻与LED发光二极管串联到GND
测试效果:
P0.3每点亮0.5S,再关闭0.5S,循环闪烁
如果改用外部晶振（8M），因振荡器工作速度快2倍多，则闪烁时间会相应缩短
S3F9454, only then VDD, GND at 16 feet (P0.3) add a 1K resistor in series with the LED light-emitting diode to GND test results: P0.3 per lit 0.5S, and then close the 0.5S, cycle flashes if the switch external crystal (8M), due to the oscillator operates more than 2 times faster, then the time will be shortened flashes (2013-12-10, Objective-C, 29KB, 下载7次)
STM32 IIC代码 IIC(Inter－Integrated Circuit)总线是一种由PHILIPS公司开发的两线式串行总线，用于连接微控制器及其外围设备。它是由数据线SDA和时钟SCL构成的串行总线，可发送和接收数据。 在CPU与被控IC 之间、IC 与IC 之间进行双向传送，高速IIC 总线一般可达400kbps以上。 I2C总线在传送数据过程中共有三种类型信号，它们分别是：开始信号、结束信号和应答信号 (2013-08-14, Objective-C, 3KB, 下载16次)
http://www.pudn.com/Download/item/id/2330141.html
void OUT_DATA(unsigned char NEW_DATA)
/*******************************************************************************/
void lcd_delay_us(unsigned char us) // 延时微秒@12M,ms最大值255
void lcd_delay_ms(unsigned int ms) // 延时毫秒@12M,ms最大值255
// 产生一个使能脉冲
void lcd_e_toggle(void)
// 循环检测LCD忙标志(BF)，直到其值为0，方可执行下一指令
void lcd_wait_until_finish(void)
// 公共函数
// 向LCD写命令字
void lcd_command(unsigned char cmd)
// 设置显示位置(即写入显示地址)，x,y均从0开始
void lcd_goto_xy(unsigned char x, unsigned char y)
// 写字符(传入的参数实际为所需显示字符的地址,即液晶字符产生器中字符的地址)
void OUT_DATA (unsigned char NEW_DATA) /*******************************************************************************/void lcd_delay_us (unsigned char us) // extension when microsecond @ 12M, ms maximum 255 void lcd_delay_ms (unsigned int ms) // delay in milliseconds! 12M ms maximum 255// generate an enable pulse void lcd_e_toggle (void) // loop detection LCD busy flag (BF), until its value is 0, before the implementation of the next instruction void lcd_wait_until_finish (void) // public function// write to the LCD the command word void lcd_command of (unsigned char cmd) // set display position (ie write into the display addresses), x, y are from 0 void lcd_goto_xy (unsigned char x, unsigned char y) // write character (incoming parameters actually required to display the address of the character, i.e. the character in the liquid crystal character generator address) (2013-03-23, Objective-C, 1KB, 下载7次)
利用AVR做主控芯片的自平衡小车，外围器件有加速度计、陀螺仪、编码器等。利用加速度计与陀螺仪检测出现态的角度，通过卡尔曼滤波得出数据，再做出相应的调节。能实现小车的自平衡。
Self-Balancing Robot using AVR master chip peripheral devices accelerometer, gyroscope, encoder. Accelerometers and gyroscopes to detect the presence of the state' s point of view, data obtained through the Kalman filter, and then make appropriate adjustments. To achieve self-balancing of the car. (2012-12-14, Objective-C, 87KB, 下载62次)
一个示例了AVcc A0参考。
软件集ADC10SC开始样本和转换- ADC10SC
自动清理在度。ADC10内部振荡器次样本(16 x)
和转换。在等待在LPM0 Mainloop语句MSP430直到ADC10来节省电能
转换完成,ADC10_ISR将迫使退出LPM0 Mainloop语句上的
reti。如果A0 > 0.5 * AVcc,P1.0设置,否则重置。
MSP430F21x2 Demo- ADC10, Sample A0, AVcc Ref, Set P1.0 if A0 > 0.5*AVcc Description: A single sample is made on A0 with reference to AVcc. Software sets ADC10SC to start sample and conversion- ADC10SC automatically cleared at EOC. ADC10 internal oscillator times sample (16x) and conversion. In Mainloop MSP430 waits in LPM0 to save power until ADC10 conversion complete, ADC10_ISR will force exit from LPM0 in Mainloop on reti. If A0 > 0.5*AVcc, P1.0 set, else reset. (2012-07-13, Objective-C, 1KB, 下载13次)
在单片机开发板上实现的一个电子钟程序。采用了模块化的设计方法，将头文件和源文件分开来写。时间用6个数码管显示，用按键可以随时调节时钟的时，分，秒，设计了三个有效按键，分别为功能选择键，数值增大键和数值减小键。每次按下键，(蜂鸣器鸣响一次)，利用板上at24c02设计实现断电自动保护显示数据的功能，当下次上电时会接着上次断电前的时间数据继续运行。
Microcontroller development board, an electronic clock program. Uses a modular design method, the header files and source files to write separately. Time with six digital display, the button can always adjust the clock, minutes, seconds, designed three effective keys to select the function key, value increases and numerical reduce key. Each time you press the button (buzzer sounds once), use board at24c02 designed to achieve power outage automatic protection function of display data, the time data before the last power failure when the next power will then continue to run. (2012-06-17, Objective-C, 40KB, 下载3次)
本书介绍nRF系列射频SOC原理与应用，详细介绍nRF射频SOC各部分功能部件的原理与应用，并为每个功能模块编写了应用演示源程序，以便于快速实验及测试。此外还介绍开发环境的建立，以及nRF SOC教学开发实验平台，最后以应用为背景介绍射频有源RFID、无线USB，以及2.4 GHz无线鼠标、无线键盘和无线遥控器等的设计。本书以实践出发，以应用为目标，可作为个人、学生、无线爱好者、工程师学习无线设计的入门及提高读物，或作为高等院校的计算机、电子、自动化、无线通信等专业相关课程的教学参考书。
The book introduces nRF Series RF SOC principles and applications, detailing the principles and application of the nRF RF SOC function of each component for each functional module written application that demonstrates the source, in order to quickly experiment and test. In addition, on the establishment of the development environment, as well as nRF the SOC teaching development of experimental platform, the final application for the design of RF active RFID, Wireless USB, and a 2.4 GHz wireless mouse, wireless keyboard and wireless remote control and other background information. Book to the practice of application can be as individuals, students, and wireless enthusiasts and engineers to learn wireless design entry and improve reading, or as computers, electronics, automation, wireless communications and other professional courses in colleges and universities teaching reference books. (2012-05-30, Objective-C, 12011KB, 下载147次)
步进电机的调速一般是改变输入步进电机的脉冲的频率来实现步进电机的调速，因为步进电机每给一个脉冲就转动一个固定的角度，这样就可以通过控制步进电机的一个脉冲到下一个脉冲的时间间隔来改变脉冲的频率，延时的长短来具体控制步进角来改变电机的转速，从而实现步进电机的调速。在本设计方案中采用AT89C51型单片机内部的定时器改变CP脉冲的频率从而实现对步进电机的转速进行控制，实现电机调速与正反转的功能。
Stepper motor speed control is generally to change the input pulse frequency of the stepper motor stepper motor speed to achieve, because the stepper motor to a pulse on each rotation a fixed angle, so that you can control the stepper motor by a pulse to the next pulse interval to change the pulse frequency, the length of delay to the specific control step angle to change the motor speed in order to achieve the stepper motor speed. Design used in this type of microcontroller AT89C51 CP internal timer to change the frequency of the pulse in order to achieve the speed of the stepper motor to control the motor speed control and reversing function. (2011-10-21, Objective-C, 556KB, 下载25次)
一个利用了XCODE里面PICKERS控件的例程，很详细的描述了控件的使用方法，对做老虎机，IPHONE日期选择器等程序借鉴意义很大~！
A good example which utilizes the PICKERS CONTROL in the XCODE. It described in great detail the use of PICKERS control. It will help a lot in making slot machines, IPHONE date picker and so on. It s a great reference for such procedures ~! (2011-05-07, Objective-C, 876KB, 下载37次)
用mcs-52系列单片机实现等精度频率测量，T1引脚接被测TTL信号，晶振22.1184MHz，对任何频率都可以实现很高精度的测量（精度<1 )，结果从串口字符串输出，波特率115200，可以用串口调试器观察结果.
With mcs-52 family of single chip and other precision frequency measurement, T1 pin then measured TTL signal, Crystal 22.1184MHz, any frequency can be achieved very high accuracy of measurement (precision<1 ), the result string from the serial output , baud rate 115200, serial debugger can observe the results. (2010-05-02, Objective-C, 1KB, 下载63次)
通过DS18B20读取温度（范围-55C~125C，精确到小数点后一位），通过4位数码管显示出来。 当温度为正且百位为零时，不显示，当温度为负时百位显负号。当温度百位和十位都为0时0都不显示。
Read through the DS18B20 temperature (range-55C ~ 125C, accurate to one decimal), through four digital tube display. When the temperature is zero and 100, do not show, when the temperature is significantly negative at minus 100. When the temperature is 100 and 10 are not displayed 0:00. (2009-04-22, Objective-C, 18KB, 下载100次)
这是一个用MSP430单片机设计的基于FYD12864LCD的数字电压表的C程序。系统主要实现对电压的测量。其中，ADC采用MSP430149单片机内部自带的12位AD转换器。输入信号的最大值为+2.5V，你也可以选择其他参考源，使输入信号最大可达+3.3V。
This is a single-chip design using MSP430-based digital voltage meter FYD12864LCD the C program. System is mainly to achieve voltage measurements. One of, ADC using the internal built-in MSP430149 Singlechip 12 AD converters. Maximum input signal for+2.5 V, you can also select other reference source, so that the input signal up to+3.3 V. (2009-03-26, Objective-C, 25KB, 下载36次)
双数码管可调秒表，。由于单片机I/O资源足够，所以双数码管可接成静态显示方式，两个共阴数码管分别接在P1（秒十位）和P2（秒个位）口，它们的共阴极都接地，安排两个按键接在P3.2（十位数调整）和P3.3（个位数调整）上，为了方便计时，选用12MHz的晶体。为了达到精确计时，选用定时器方式2，每计数250重载一次，即250us，定义一整数变量计数重载次数，这样计数4000次即为一秒
Dual digital tube adjustable stopwatch. Because of single-chip I/O resources enough, so can be accessed by double-digital pipe into the static display, a total of two vaginal digital tube then separately at P1 (10 second) and P2 (second a bit) the mouth, they are the total cathode grounding, both keys then arranged at P3.2 (ten-digit adjusted) and P3.3 (single-digit adjusted) on, in order to facilitate the timing and use 12MHz crystal. In order to achieve accurate timing, selection of timer mode 2, each count of 250 heavy-duty one, that is, 250us, the definition of heavy-duty one count the number of integer variables, so that count is 4000 times a second (2009-03-10, Objective-C, 1KB, 下载4次)
embOS的MSP430F2274移植版，在TI公司2274官方开发板上移植成功，并可以使用embView（任务管理器）进行观察。原embOS为三任务评估版,平台为MSP430F4691.
MSP430F2274 transplantation of embOS Edition, TI company in 2274 official development board transplant success, and can use embView (Task Manager) observation. EmbOS original version of the three assessment tasks, the platform for the MSP430F4691. (2008-11-24, Objective-C, 454KB, 下载43次)
便，且能进行大信息量的字符显示,还可以实现图形及曲线的显示,这就使人机接口更友好。当然，不同型号的液晶模块的内置控制器有很多种,各套指令也有一定差异, 但其设计思路和流程基本相同
Will be able to carry out large amount of information displayed characters, but also realize the display of graphics and curves, which is more friendly interface. Of course, different models of LCD module has a variety of built-in controller, the sets of commands have certain differences, but its design is basically the same ideas and flow (2008-08-15, Objective-C, 71KB, 下载2次)
转化为控制指令，然后每50ms通过串口向上位机发送一次命令，上位机收到数据后控制虚拟仿真机器人，最后，上位机收集虚拟机器人的姿态参数，再通过串
Translated into control commands, and then every 50ms upward through the serial-bit machine to send a command, the data received after the host computer to control the virtual simulation robot, finally, the collection of Virtual PC robot posture parameters, and then through the string (2008-08-15, Objective-C, 218KB, 下载16次)