vb_温湿度_Access

单片机音频通信9170和9200，接收发送源程序(9170 and 9200 microcontroller audio communication, the receiver sends source)

本人收藏的一个按键发音的程序， 很不错的源码,值得下载(My collection procedures pronunciation of a button, it is a good source, it is worth downloading)

自动交通控制系统用红、绿、黄三支共两组发光二极管表示交通信号灯，利用单片机模拟有时间显示的定时交通信号灯控制管理。信号灯的变化规律可如下： 1）放行线：绿灯亮放行25秒，黄灯亮警告5秒，然后红灯亮禁止。 2）禁示线：红灯亮禁止30秒，然后绿灯亮放行。 3）当某一方向的红灯亮时，若该方向有车通过，则用扬声器声报警。（撞红灯信号可用3-5V模拟量表示）(Automatic traffic control system using red, green, yellow light-emitting diodes, said a total of three traffic lights, the use of single-chip analog time display on a regular traffic signal control and management. Changes of lights to be as follows: 1) Release Line: green clearance 25 seconds, the yellow light warning for 5 seconds, then the red light is prohibited. 2) ban shows lines: the red light is prohibited for 30 seconds, then the green light to release. 3) When the red light in one direction, if the direction of the car through, the alarm speaker sound. (Hit the red signal available 3-5V analog representation))

这是一个定时器程序。适合于单片机初学者……(This is a timer program. Suitable for beginners ... ... MCU)

Wireless Engineering and Technology vol.6, num.3, 2015, 37pages ISSN : 21522294

模拟电表软件，主要模拟电表数据、遥测数据、参数修改、报文显示、可以模拟2个电表（可以自行修改增加），最终通过RS232转485输出。。。(Analog meter software, the main analog meter data, telemetry data, parameter modification, message displays, you can simulate two meters (which can be modified to increase its own), the final output through the RS232 switch 485. . .)

单片机课程设计 电子压力器的工作原理 电子压力器由压力传感器，A/D转换器，数码显示等组成。 (MCU Design pressure of the working principle electronic pressure is controlled by electronic pressure sensor, A/D converter, digital display and other components.)

说明：  在编写程序时，遇到温度检测，则调用读温度软件包(In programming, temperature detection, call packages, read the temperature)

static members source code for object oriented environment

读写器与射频卡通信的设计采用RC522射频读写芯片与射频卡进行通信，符合ISO14443规范协议；硬件系统设计中主要有AVR单片机主控模块、电源模块、存储模块、外部时钟模块、LCD模块；软件系统设计采用C语言，遵循模块化和结构化编程模式，设计了射频卡操作程序、软关机与自动关机程序、LCD显示、串行Flash存储器、外部时钟等外部设备驱动程序。所设计的手持式读写器具备对MF1 S50、S70射频卡的读写、实时状态显示、系统在线升级以及关机等功能。(This handset can process the data offline or online, reading and writing from 10 cm far. This handset is low-power, miniature, modular design and so on. This article includes: the communication design between RF card and Reader, hardware system design and software systems design. The communication design between RF card and Reader used to RC522 RF chip control RF cards, in line with ISO14443 standard protocol Hardware system design mainly include AVR microcontroller control modules, power modules, memory modules, external clock modules, LCD modules Software system designed with C programming language, and follow the modular structure of the programming model, and has the RF card operation procedures, soft shutdown and automatic shutdown procedures, LCD display, serial Flash memory, an external clock, and other external device driver Procedures. The handset readers has the MF1 S50, S70 RF card reader function, real-time status display function, the system online update function and so)