Description: 数字电压表
AD芯片：
采用8位串行A/D转换器ADC0832。
● 8位分辨率，逐次逼近型，基准电压为 5V
● 5V单电源供电
● 输入模拟信号电压范围为 0～5V
● 有两个可供选择的模拟输入通道
-Digital Voltage Meter AD-Chip: 8-bit serial A/D converter ADC0832. ● 8-bit resolution, successive approximation type, the base voltage of 5V ● 5V single power supply ● analog signal input voltage range of 0 ~ 5V ● There are two options for analog input channels Platform: |
Size: 8192 |
Author:q |
Hits:
Description: 1、建议逻辑数字分析仪的单片机代码。
2、重要包括电源、输入处理、A/D采集、键盘、LCD显示、D/A输出。-1, the proposed digital logic analyzer microcontroller code. 2, it is important to include the power supply, input processing, A/D acquisition, the keyboard, LCD display, D/A output. Platform: |
Size: 101376 |
Author:foxmail2008 |
Hits:
Description: 数码管显示DS18B20温度控制程序：硬件： 51板
(1)单线ds18b20接 P2.2
(2)使用外部电源给ds18b20供电，没有使用寄生电源奥
软件：
Kei uVision 2
-DS18B20 digital display temperature control procedures: Hardware: 51 plates (1) one-way DS18B20 Access P2.2 (2) the use of an external power supply to the DS18B20 electricity, do not use parasitic power Austrian software: Kei uVision 2 Platform: |
Size: 3072 |
Author:成小岚 |
Hits:
Description: 详细地讲解了:电源、地线的处理,数字电路与模拟电路的共地处理,大面积导体中连接腿的处理,设计规则检查-Explain in detail: the power supply, ground handling, digital circuits and analog circuits were dealt with, a large area of connected leg conductor processing, design rule checking Platform: |
Size: 212992 |
Author:万建武 |
Hits:
Description: 万年历数字钟是一种用万年历时钟芯片实现年、月、日、时、分、秒计时，并通过单片机处理后送给显示芯片显示的装置，与机械式时钟相比具有更高的准确性和直观性，且具有更长的使用寿命。本系统还可以扩展为可调的自动开关,对家电对用电设备进行控制,笔者在随后改制成为可调时的自动断电的供电系统.-Calendar Digital Clock is a clock chip using calendar year, month, day, hour, minute, second time, and through single-chip processing to the display chip display devices, and mechanical clock has a higher accuracy compared to and intuitive and has a longer life. The system can also be extended to an adjustable automatic switch, household electric appliances to be controlled on the electrical equipment, and the author in the subsequent restructuring has become an automatic adjustable power supply system. Platform: |
Size: 56320 |
Author:zhuxiaouan |
Hits:
Description: 数字电压表中常采用式ADC0832。DAC0832是8位串行A/D转换器；转换速度较高（250KHz时转换时间32ms）；单电源供电，功耗低（15mw）。具有较高的抗干扰特性。-Digital voltage meter often used type ADC0832. DAC0832 8-Bit Serial A/D converter conversion speed higher (250KHz when the conversion time 32ms) single power supply, low power consumption (15mw). Have a high anti-interference characteristics. Platform: |
Size: 118784 |
Author:建成 |
Hits:
Description: 无线数字抄表系统由中央处理器、电源模块、通讯模块以及显示模块等部分组成-Wireless digital meter reading system by the CPU, power supply module, communication module and display module and other components Platform: |
Size: 3072 |
Author:林龙二 |
Hits:
Description: 无线数字抄表系统由中央处理器、电源模块、通讯模块以及显示模块等部分组成-Wireless digital meter reading system by the CPU, power supply module, communication module and display module and other components Platform: |
Size: 167936 |
Author:林龙二 |
Hits:
Description: DSl820数字温度计提供9位(二进制)温度读数指示器件的温度信息经过单线接口送
入DSl820或从DSl820送出因此从主机CPU到DSl820仅需一条线(和地线)DSl820的电源可以由数据线本身提供而不需要外部电源因为每一个DSl820在出厂时已经给定了唯一的序号因此任意多个DSl820可以存放在同一条单线总线上这允许在许多不同的地方放置温度敏感器件DSl820的测量范围从-55到+125增量值为0.5可在l s(典型值)内把温度变换成数字-DSl820 digital thermometer provides 9-bit (binary) temperature readings indicative of the temperature device information through one-way interface into DSl820 or from DSl820 sent from the host CPU to DSl820 just a line (and ground) DSl820 power can be provided by the data line itself without the need for external power supply because each DSl820 at the factory have been given a unique serial number so any number can be stored in DSl820 with a single bus which allows many different places in the temperature-sensitive device placed DSl820 measuring range-55 to+125 from the incremental value of 0.5 in the ls (typical value) within the temperature transform into digital Platform: |
Size: 72704 |
Author:haha |
Hits:
Description: 本设计由三个部分组成，键盘与显示，基于单片机的控制器，稳流电源。以89C52为主控单元，以数模转换器DAC0832输出参考电压，以该参考电压控制电压转换模块LM350K的输出电压大小，设计实用，精度高。-The design consists of three parts, keyboard and display, based on single-chip controller, power supply. To 89C52 for the main control unit to DAC0832 Digital to Analog output reference voltage to the reference voltage to control voltage converter module output voltage LM350K size, design and practical, and high accuracy. Platform: |
Size: 2048 |
Author:mama |
Hits:
Description: 给出了一种以AT89S51单片机为核心, 并通过控制比较调整单元基准电压的变化来
来实现高可靠、小纹波和高精度电压控制的直流数显可调稳压电源的硬件电路组成和软件设
计流程。-To give a single-chip AT89S51 as the core, and by controlling the voltage comparison unit adjust to the changes to achieve high reliability, small ripple and high-precision voltage-controlled digital display adjustable DC power supply circuit of the hardware group Cheng and software design flow. Platform: |
Size: 66560 |
Author:mama |
Hits:
Description: 旋转云台 搭载物体旋转 正常运转有效载重>5kg
云台直径50cm
电机最小角度精度<2°
拍摄360°时间<1分钟
被拍摄物体在拍摄前后不应发生位移
供电电源交流220V
步进电机 带动云台按规定角度旋转
单片机控制电路 使用计算机信号控制电机旋转，返回运行状态由电脑显示，使用串口或USB，提供PC端控件供VC或VB调用，以便程序控制
外壳 容纳控制板和电机，包含幕布和摄像头支架 结实耐用，整机重量小于5kg
摄像头支架可固定摄像头或数码相机可调节上下高度、前后距离和俯仰角度摄像头 电脑用摄像头或数码相机USB接口，有效分辨率不小于100万像素弧形幕布拍摄背景，在摄像头对面，固定不动弧度180°与云台边缘结合紧密、颜色一致，超出云台高度大于30cm
-Yuntai rotating with the normal operation of rotating objects payload> 5kg
Yuntai 50cm diameter
The smallest precision electric angle <2 °
360 ° shooting time <1 minute
Was shooting at objects before and after the shooting should not be shifted
AC 220V power supply
Stepper motor Driven by the angle of rotation Yuntai
Single-chip control circuit using a computer to control electrical signals rotation, running back status from the computer indicated that the use of serial or USB, providing PC-side control for the VC or VB to call in order to control
Shell to accommodate control panel and motor, including curtain and durable camera stand, machine weighing less than 5kg
Stent can be fixed camera camera or a digital camera up and down adjustable height, distance and pitch angle before and after
Camera computer camera with a digital camera or USB interface, the effective resolution of not less than 1,000,000 pixels
Curved curtain shooting background, across fro Platform: |
Size: 7354368 |
Author:羊希 |
Hits:
Description: 摘 要：介绍一种以Atmel公司的单片机 ATmega324p为控制核心，结合数字温度传感器DS18B20和 INTEGRAT10N
公 司的无线收发芯 片 IA4421的数 字化 无线温度传感器的设计 。该设计频段(433 MHz ISM)无 需 申请 即可使 用测 温范 围为
一
4o～95℃ ，分辨率为 0．062 5℃ ，工作频率 433 MHz，接收灵敏度为 109 dBm，最 大发射功 率 8 dBm，传输距 离 200 m，采和
电池供 电。重点介绍该 系统 的硬件接 口、软 件设 计 以及 低 功耗设 计。该数 字化 温度传 感 器可应 用到各 种 需要无 接触 的场
合 ，实现 对现 场温度 的“先知先觉”。
关键词 ：ATmega324p；数 字温度传 感器；无线收发 ；IA4421；ATmega334p -esign and Realization of Digital W ireless Temperature Sensor Based on IA44
ZHANG Kefan，ZHANG Shuhua，TU Qiang，LI Ying
(School of Information Science and Engineering，Yunnan University，Kunm ing，650091，China) ct：The digital wireless temperature sensor based on ATmega 324p of Atmel Company，digital temperature se chip RF transceiver IA4421 are introduced，433 M Hz ISM does not need application．temperature measure b
g power 0．062 5℃ ，operating frequency 433 MHz，receiving sensitivity 一 109 dBm，the most transmit p distance 200 m，battery power supply．The hardware interface and low po wer software design are analyz sensor can be applied in each contactless occasions，realizing foresight to the temperature． rds：ATmega324p；digital temperature sensor；wireless transceiver；IA4421 Platform: |
Size: 8192 |
Author:zhengcaite |
Hits:
Description: 本设计采用一块单片机（AT89S52）作为多功能数字钟的控制核心，加以温度传感器、红外接收管、蜂鸣器、液晶显示器（LCD1602）、电源电路及其他电路构成。实现了时间设置、闹铃设置、闹铃开和关的功能；LCD显示小时、分钟，有AM、PM指示灯，闹钟就绪灯，闹钟到点蜂鸣器报警，220V供电基本功能。另外，本设计还实现了通过切换键盘显示现场温度，红外停止闹铃的功能。
-This design uses a single chip (AT89S52) as the core controller of a multi-functional digital clock,complemented by temperature sensor,infrared receiver,buzzer,liquid crystal display(LCD1602),power circuit and other circuit. It implementes time setting,alarm setting,and alarm on/off functions.Moreover, it has some basic functions such as displaying hour and minute,AM/PM indicator light,alarm clock ready light,buzzer alarm and 220V power supply.In the end,this design also can show the scene temperature through switching the keyboards,and stop the alarm by infrared circuit.
Platform: |
Size: 62464 |
Author:侯侠 |
Hits:
Description: 脉冲宽度调制（PWM）是英文“Pulse Width Modulation”的缩写，简称脉宽调制。它是利用微处理器的数字输出来对模拟电路进行控制的一种非常有效的技术，广泛应用于测量，通信，功率控制与变换等许多领域。一种模拟控制方式，根据相应载荷的变化来调制晶体管栅极或基极的偏置，来实现开关稳压电源输出晶 体管或晶体管导通时间的改变，这种方式能使电源的输出电压在工作条件变化时保持恒定。 脉冲宽
-Pulse width modulation (PWM) is the English " Pulse Width Modulation" acronym, or pulse width modulation. It is the use of the microprocessor to the digital output of analog circuits for the control of a very effective technology, widely used in measurement, communications, power control and many other fields with the transformation. An analog control means, in accordance with the corresponding changes in load modulation transistor gate or base bias, switching power supply to achieve the output transistors or transistor on-time changes in power in this way can the output voltage in the workplace conditions of constant change. Pulse width Platform: |
Size: 1024 |
Author:fanchao |
Hits:
Description: 本数控直流电压源利用16位单片机SPCE061A为控制核心的数字步进直流电源的设计程序-The use of numerical control DC voltage source 16-bit single-chip microcomputer to control the core SPCE061A digital DC power supply step of the design process Platform: |
Size: 8192 |
Author:SUNYAO |
Hits:
Description: 制作DS18B20数字温度计,2个数码管显示。精确到1°C。
DS18B20引脚定义：
(1)DQ为数字信号输入/输出端；(需要加个上拉电阻加到电源上）
(2)GND为电源地；
(3)VDD为外接供电电源输入端（在寄生电源接线方式时接地）。 -Production DS18B20 digital thermometer, digital display 2. Accurate to 1 ° C. DS18B20 pin definition: (1) DQ for the digital signal input/output terminal (need to add a pull-up resistor on the power supply) (2) GND for the power to (3) VDD power supply for the external input (in parasitic power mode when the grounding wire). Platform: |
Size: 4096 |
Author:汤思远 |
Hits:
Description: 基于dsp的电源设计，采用较为合理的手段实现电源数字化-Dsp based power supply design, the use of more reasonable means to achieve the power of digital Platform: |
Size: 99328 |
Author:xqc |
Hits:
Search - digital power supply