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Description: 用VC开发ACTIVEX.zip, 用VC开发ACTIVEX.zip-With VC development ACTIVEX.zip
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Size: 1252352 |
Author: yuanshu |
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Description:
MAX7044是基于晶振PLL 的VHF/UHF发射器芯片，在300 MHz～450 MHz频率范围内发射OOK/ASK数据，数据速率达到100 kbps，输出功率+13 dBm(50Ω负载)，电源电压+2.1～+3.6 V，电流消耗在2.7 V时仅7.7 mA。工作温度范围一40℃～＋125℃，采用3 mm×3 mm SOT23 - 8封装。
MAX7033是一个完全集成的低功耗CMOS超外差接收器芯片，接收频率范围在300 MHz～450 MHz的ASK信号。接收器射频输入信号范围从一114 dBm-0dBm。MAX7033芯片内部包含有LNA、差分镜像抑制混频器、PLL、VCO、10.7 MHz IF限幅放大器、AGC、RSSI、模拟基带数据信号恢复等电路。工作电压+3.3 V或+5.0V，250μs启动时间，低功耗模式电流消耗<3.5μA，工作温度-40℃～＋105℃，采用TSSOP-28和薄形QFN-EP* *-32封装。
MAXT044发射器芯片与接收器芯片MAX7033配套，适合汽车遥控、无键进入系统、安防系统、车库门控制、家庭自动化、无线传感器等应用。
-MAXT044发射器芯片与接收器芯片MAX7033配套，适合汽车遥控、无键进入系统、安防系统、车库门控制、家庭自动化、无线传感器等应用。
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Size: 173056 |
Author: backoff |
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Description: /* 这是直接用C51高级语言编写的DS1620转换程序－没有调用汇编语言。*/
/* 文件名DS1620C.C */
/* 功能：本程序主要是读出DS1620芯片的温度转换值,转换值先放 */
/* 在变量temp1中。转换值范围-55℃~125℃。 若flag0=0为 */
/* 正温度,若flag0=1为负温度值,最终结果在浮点变量cc中。 */
/* 本程序适合DS1620 和51系列单片机的连接,晶振为12MHZ左右。*/-/* This is the direct use of C51 language DS1620 advanced conversion process- not to call assembly language.*//* File name DS1620C.C*//* Function: This procedure is to read out the chip DS1620 temperature conversion value, the conversion value of first place*//* in the variable temp1 Medium. Conversion value range-55 ℃ ~ 125 ℃. If flag0 = 0 for*//* is the temperature, if flag0 = 1 for the negative temperature value, the final result at floating-point variables in cc.*//* This procedure suitable DS1620 and 51 Series Single-chip connections, crystal for around 12Mhz.* /
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Size: 1024 |
Author: 范丽鹏 |
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Description: ETSI TS 125 433 V7.9.0(2008-07)
Universal Mobile Telecommunications system (UMTS)
UTRAN Iub interface Node B Application Part (NBAP)
signalling -ETSI TS 125 433 V7.9.0 (2008-07)
Universal Mobile Telecommunications system (UMTS)
UTRAN Iub interface Node B Application Part (NBAP)
signalling
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Size: 3614720 |
Author: 杨志刚 |
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Description: 温度传感器用单总线DS18B20，CPU为2051，三个按键，分别为UP，DOWN，SET温度调节上限为125度，下限为-55度。-Single-bus temperature sensor DS18B20, CPU for 2051, three buttons, namely, UP, DOWN, SET temperature regulation maximum of 125 degrees,-55 degrees for the lower limit.
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Size: 52224 |
Author: 晴朗 |
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Description: 锅炉水位模拟系统。由两排各125个小LED灯组成，可以让小灯从任意位置在任意时刻移动到目标位置。-Boiler water level simulation system. By two rows of the 125 small LED lights that can allow a small lamp from anywhere at any time move to the target location.
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Size: 23552 |
Author: 郭彪 |
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Description: 将N(1<= N <= 200000)个整数小到大连续编号，相同的数应具有相同的编号。并按这N个数输入时的顺序输出它们的编号序列。例如，设输入数据为 5 3 4 7 3 5 6，则输出数据为3 1 2 5 1 3 4。-The N (1 < = N < = 200000) months consecutive integer number of small to large, the same number should have the same number. N number of input and that at the time of the order of the output of their serial numbers. For example, input data for 5,347,356, while output data for 3,125,134.
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Size: 1024 |
Author: QQQQQ |
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Description: 125个常用JAVA面试题,抽象就是忽略一个主题中与当前目标无关的那些方面，以便更充分地注意与当前目标有关的方面。抽象并不打算了解全部问题，而只是选择其中的一部分，暂时不用部分细节。抽象包括两个方面，一是过程抽象，二是数据抽象-JAVA surface 125 common questions, the abstract is that it has overlooked a theme has nothing to do with the current objectives of those aspects in order to more fully with the current objectives of the attention-related aspects. Abstract does not intend to understand all the issues, but only select one part of the moment do not have some details. Abstract two aspects, first, the process of abstraction, and the other is an abstract data
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Size: 33792 |
Author: 按时 |
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Description: AD7888的调试程序,串行模式，四输入端，十二位，适合直流信号-The AD7888 is a high speed, low power, 12-bit ADC that operates
from a single 2.7 V to 5.25 V power supply. The AD7888 is
capable of a 125 kSPS throughput rate.
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Size: 175104 |
Author: 王浩 |
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Description: 125K ID读卡器原理图，分立元件搭的-125K ID card reader schematic, discrete components of the ride
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Size: 54272 |
Author: 李锦龙 |
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Description: AT89C2051+DS18B20做的一个0-125度的温度计-AT89C2051+ DS18B20 do a thermometer 0-125 degree
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Size: 39936 |
Author: simon |
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Description: DS18B20是美国DALLAS公司继DS1820之后推出的增强型单总线数字温度传感器。它在测温精度、转换时间、传输距离、分辨率等方面较DS1820有了很大的改进，给用户带来了更方便的使用和更令人满意的效果。
1. DS18B20的新性能
(1) 可用数据线供电，电压范围：3.0~5.5V；
(2) 测温范围：-55~+125℃，在-10~+85℃时精度为±0.5℃；
(3) 可编程的分辨率为9~12位，对应的可分辨温度分别为0.5℃、0.25℃、0.125℃和0.0625℃；
(4) 12位分辨率时最多在750ms内把温度值转换为数字；
(5) 负压特性：电源极性接反时，温度计不会因发热而烧毁，但不能正常工作。
(6) 温度转换时间由DS1820的2s降为750ms，且灵敏度大为提高，在逐渐升温的水中与精度为±0.5℃的温度计几乎同步，且回复性很好；
(7) 每个芯片唯一编码，支持联网寻址，零功耗等待。
-fefa
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Size: 2048 |
Author: 文志远 |
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Description: 用18B20（数字温度采集）74LS47(数码管译码)74LS138(三八译码) DS18B20是DALLAS公司生产的一线式数字温度传感器，具有3引脚TO－92小体积封装形式；温度测量范围为－55℃～＋125℃,可编程为9位～12位A/D转换精度，测温分辨率可达0.0625℃，被测温度用符号扩展的16位数字量方式串行输出.-With 18B20 (Digital Temperature Acquisition) 74LS47 (decoding digital tube) 74LS138 (decoder 38) DS18B20 is produced by first-line DALLAS digital temperature sensor with a 3-pin TO-92 package of small size temperature measurement range of-55 ℃ ~+125 ℃, Programmable for 9 ~ 12-bit A/D conversion accuracy, temperature measurement resolution of up to 0.0625 ℃, the temperature measured using symbols to expand the 16-digit serial output methods.
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Size: 6144 |
Author: Jn |
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Description: 该系统由主控制器、测温电路、显示电路及控制电路四大部分组成, 芯片使用了ATMEL公司的AT89S52单片机和美国DALLAS公司的DS18B20数字温度传感器。本文针对AT89S52单片机的性能和工作原理做了简单介绍；同时对测量范围在-55～+125℃之间的数字温度传感器DS18B20做了详细介绍。对软、硬件的各个模块，逐步分析设计，画出各模块流程图。经过反复的模拟运行、调试，最终实现系统功能。
该系统可应用于粮食仓储系统、楼宇自动化系统、空调系统的温度检测和生产过程监控等领域。
- The system included four major components. They were the main controller, temperature measurement circuits, display circuits and control circuits. The system used AT89S52 SCM of ATMEL Company and DS1820 digital temperature transducer of the United States DALLAS company. First of all, the book introduced the performance and working principle of SCM AT89S52 simply, at the same time, the book gave a detailed introducing about the digital temperature transducer DS1820 in which the temperature measuring scope was between-55 and+125℃.This article key to the hardware, the software composition carried on the sub-item, the modulation has analyzed the design gradually and draw flow chart of each module. After the repeatedly simulation run, the debugging, and eventually realized the system functions.
The system can be applied in grain storage systems, building automation systems, air-conditioning systems, temperature testing and production process monitoring and other fields.
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Size: 3072 |
Author: tianling |
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Description: 1602液晶的实用的详细程序。程序仅供参考
-Pin VREF requires a voltage of 1.25 V to 2.5 V, with gain
scaling between 40 dB/V and 20 dB/V, respectively. Voltage
VGN controls the gain its nominal operating range is from
0.25 V to 2.65 V for 20 dB/V gain scaling, and 0.125 V to
1.325 V for 40 dB/V scaling. When this pin is taken to ground,
the channel will power down and disable its output.
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Size: 1024 |
Author: 周仔 |
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Description: 本程序的开发环境为VS2005，数据库为SQLSever2005
默认的连接字符串为："DataSource=125.216.227.147 Initial Catalog=msdb Persist Security Info=True User ID=sa Password=111111"
管理系统为一个简单的人事管理系统，帮助初学者尽快的掌握这种语言，进而有助于系统改进，对初学者来说是很不错的选择。-This procedure for the development environment VS2005, the default database connection string SQLSever2005 for: " DataSource = 125.216.227.147 Initial Catalog = msdb Persist Security Info = True User ID = sa Password = 111111" management system as a simple personnel management system, help beginners master the language as soon as possible, and contribute to system improvement, for beginners it is very good choice.
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Size: 60416 |
Author: 王婷 |
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Description: 这是一段PHP的插件，他可以让你以125×125区域内显示多个广告，改变他们的次序，并且，可以统计广告的点击次数。-This is a PHP plug-ins, he could let you, as the region 125 × 125 display multiple ads, change their order, and can be ad clicks statistics.
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Size: 125952 |
Author: miller |
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Description: DS18B20是DALLAS公司生产的一线式数字温度传感器，具有3引脚TO－92小体积封装形式；温度测量范围为－55℃～＋125℃,可编程为9位～12位A/D转换精度-DALLAS company DS18B20 is first-line digital temperature sensor with a 3-pin TO-92 package of small size temperature measurement range of-55 ℃ ~+125 ℃, Programmable for 9 ~ 12-bit A/D conversion accuracy
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Size: 21504 |
Author: linyongzhan |
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Description: FPGA Based RFID Reader for 125KHz and 134.2Khz
Final Presentation
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Size: 699392 |
Author: Farhan |
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Description: 温度传感器采用DALLAS公司继DS1820之后推出的一种改进型智能温度传感器DS18B20，其测温范围为-55至125摄氏度。分辨率最大可到0.0625摄氏度。可根据实际要求通过简单的编程实现9到12位的数字值读数，采用单线与单片机通信，减少了外部的硬件电路，具有易用和成本低的特点-Temperature Sensor DS1820 used DALLAS, following after the company introduced an improved version of the smart temperature sensor DS18B20, its temperature measurement range of-55 to 125 degrees. Maximum resolution to 0.0625 degrees. According to actual requirements to achieve through a simple programming 9-12 reading the digital value, using one-way and single-chip communications, a decrease of external hardware with easy-to-use and low cost
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Size: 5120 |
Author: ff |
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