用AD603提高超声波测距范围。超声波测距是一种非接触的测量方式，它是根据超声波从发射传感器到反射物体，再从反射物体到接收传感器的延迟时间.，利用距离/01. 2 ’，得到距离值，1 为声波在空气介质中的传播速度。由于反射超声波接收时的信号幅度与反射物体离接收传感器的距离远近有关，一般相差几十分贝-Ultrasonic Distance Measurement with the scope of AD603 improve. Ultrasonic Distance Measurement is a non-contact measurement, which is the ultrasonic sensor to the reflection from the launch of objects, objects from the reflector to the receiving sensor delay time., The use of distance/01.2, the distance values, one for the sound waves in air medium velocity. Receive as a result of reflection at the time of ultrasonic signal amplitude and the reflection from the object to receive the sensor distance, generally a difference of tens of decibels

I0口作为串行口发送接收函数完美版-I0 mouth as send and receive serial port function perfect version

单片机的7279程序。7279是一个可以带有64个按键还有六个数码管的芯片。对7279的使用可以减少对单片机的要求。-7279 SCM procedures. 7279 is a 64 keys with six LED chips. Of 7279 to reduce the use of single-chip requirements.

单一灯的左移右移分别接在单片机的P1.0－P1.7接口上，输出“0”时，发光二极管亮，开始时P1.0→P1.1→P1.2→P1.3→┅→P1.7→P1.6→┅→P1.0亮，重复循环-A single light, respectively, shifted to right then left at P1.0-P1.7 microcontroller interface, the output " 0" when the bright light-emitting diode, the beginning of P1.0 → P1.1 → P1.2 → P1. 3 → ┅ → P1.7 → P1.6 → ┅ → P1.0 Liang, repeat cycle

嵌入式控制器硬件电路设计。里面有介绍各种嵌入式控制器，及其电路设计和软件实现-Embedded controller hardware design. Which have introduced a variety of embedded controllers, and circuit design and software implementation

使用protel99软件编辑的原理电路图，希望对各位有助于电路图的学习和开发-The use of the principle of circuit protel99 software editor, in the hope you will help the study and development of circuit

本源码实现了在下位机上对室内温湿度的监控，对外接设备电压欠压的监控，以及室内火警监控-Realize the source of the next-bit machine on the indoor temperature and humidity controls, external voltage under-voltage monitoring and control equipment, as well as the indoor fire monitoring

本代码实现了卡式电话的功能,包括长话市话特话,警告,扣费等一系列功能-This code implements the cassette phone features, including special long-distance local call, then, warnings, chargeback and a series of functions

msp430f169 I2C操作 430单片机有丰富的外围模块其中有硬件I2C模块-430 Singlechip msp430f169 I2C operation has a wealth of external modules which have hardware I2C module

一个由PIC单片机组成的Web服务器源码-a composition by the PIC source Web server