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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
显示：
使用三个数码管。
显示范围：
0.00 － 5.10 （单位：V）
连接方式：
AD_CLK → P1.0
AD_DAT → P1.1
AD_CS → P3.4
模拟输入 → CH0
(AD_DAT = DO + DI)
ADC0832输出最大转换值＝FFH (255)
设定最大测量值＝5.1V
255X=5.1 X=0.02 即先乘2再除以100
（小数点放在第三位数码管）- Digital voltmeter
AD chip: Uses 8 serial A/D switch ADC0832. * 8 resolution,
gradually approaching, the datum voltage is 5V * the 5V single power
source power supply * input simulated signal voltage scope is 0 ~ 5V *
has two to be possible to supply the choice the analog input channel
Demonstrated: Uses three digital tubes.
Demonstrates the scope: 0.00 - 5.10 (unit: V)
Connection way:
AD_CLK -> P1.0 AD_DAT -> P1.1 AD_CS -> P3.4 analog input -> CH0
(AD_DAT = DO DI)
ADC0832 output biggest transformation value = FFH (255)
establishes greatest observed value = 5.1V 255X=5.1 X=0.02 namely
first to ride 2 to eliminate again by 100 (decimal point puts on third
digital tube)
Platform: |
Size: 7924 |
Author: lmhit |
Hits:
Description: Features
• Compatible with MCS-51® Products
• 8K Bytes of In-System Programmable (ISP) Flash Memory
– Endurance: 1000 Write/Erase Cycles
• 4.0V to 5.5V Operating Range
• Fully Static Operation: 0 Hz to 33 MHz
• Three-level Program Memory Lock
• 256 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Three 16-bit Timer/Counters
• Eight Interrupt Sources
• Full Duplex UART Serial Channel
• Low-power Idle and Power-down Modes
• Interrupt Recovery from Power-down Mode
• Watchdog Timer
• Dual Data Pointer
• Power-off Flag-Features
Platform: |
Size: 212863 |
Author: haojun |
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Description: 单片机通过SPI读写SD卡.使用5v系统操作3.3V的sd卡.很有借鉴价值-SCM SPI literacy through SD cards. 5v use of the system 3.3V sd card. Very valuable reference
Platform: |
Size: 139590 |
Author: liangpeng |
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Description: 1 系统简介
与本文档配套的超声波测距模组为 V2.0 版本。
1.1 基本特性与参数指标
超声波传感器谐振频率：40KHz；
模组传感器工作电压：4.5V~9V
模组接口电压：4.5V~5.5V
1.2 主要功能
三种测距模式选择跳线 J1（短距、中距、可调距）：
短距：20cm~100cm左右（根据被测物表面材料决定），精度 1cm；
中距：70cm~400cm左右（根据被测物表面材料决定）；
可调：范围由可调节参数确定，当调节在合适的值时，最远测距 700cm左右； -a System and the documentation supporting the Ultrasonic Ranging Module version of V2.0. 1.1 the basic characteristics and parameters of the resonant frequency ultrasonic sensor : 40KHz; Voltage sensor module : 4.5V - 9V voltage interface module : 4.5V ~ 5.5V 1.2 three main functions ranging mode selection jumper J1 (short distance, the distance, adjustable from) : Short : 20cm - 100cm% (based on the object surface materials), the accuracy 1cm; China interval : ~ 70cm depth of 4 m% (based on the object surface materials); Adjustable : ranging from adjustable parameters. When appropriate adjustments in the value, the farthest ranging 700cm%;
Platform: |
Size: 952592 |
Author: wanglei |
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Description: 做通讯用的隔离磁隔,他可以产生5V to 5V DC Power 可以替代常用的两片高速光偶和隔离电源模块-do with the isolation of communications magnetic traps and He could have 5 V to 5V DC Power can be used to replace the two high-speed optical isolation and dual power supply module
Platform: |
Size: 128855 |
Author: 吕海安 |
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Description: 本程序为驱动LCD为LCM161（HD44780驱动器）字符显示器.
接线：LCD D0-D8(PIN7-14) 对映用户板P0.0--P0.7
LCD VSS(PIN1) 接 GND,VDD(PIN2)接+5V,LCD驱动电源V0(PIN3)接可调电阻ADJ,调节亮度
LCD寄存器选择RS(PIN4)接P2.0,读写选择R/W(PIN5)接P2.1,使能端EN(PIN6)接P2.2(高电平
有效)
本程序采用I/O口模仿总线时序,故无需做任何硬件扩展.屏幕显示:\"I m SuperICES! \",-this procedure-driven LCD for LCM161 (HD44780 Drivers) Character Display. Wiring : LCD D0 - D8 (PIN7-14) on the video board users P0.0 -- P0.7 LCD VS S (SDS) took GND, VDD (PIN2) received 5V, LCD drive power V0 (PIN3) took adjustable resistance A DJ, adjusting brightness LCD Register choice RS (PIN4) received P2 .0, reading and writing choices R / W (PIN5) received P2 .1 enable end EN (PIN6) received P2.2 (terminated effective) the procedures used I / O bus when I imitate , there was no need for any expansion of the hardware. Screen Display : "I m SuperICES!" ,
Platform: |
Size: 1508 |
Author: 长城 |
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Description: 文章介绍的是DSP的输入输出3.3V 与5V系统的匹配方案以及ADC输入接口方案，英文版的哦-article introduces the DSP input and output 3.3V and 5V system and the matching program received input ADC I programs and English oh
Platform: |
Size: 129365 |
Author: 冬虫草 |
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Description: 编译后在单片机的1脚输出低电平，延时后输出高电平，
接一个电阻，一个LED，接到电源5V上，这样LED就会亮一下，
然后灭，然后亮，-compiled in a foot MCU low-level output, the output delay margin, then a resistance, an LED, received a 5 V power supply, this will be bright LED and then extinguished, and then shine,
Platform: |
Size: 3638 |
Author: 王建军 |
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Description: 本文将总结我们公司所设计的各种电源电路，从中提炼出我们公司的电源平台，供大家参考。
我们通常用到的工作电压为12V和5V。12V主要用来驱动继电器工作或蜂鸣器，在本平台中将用＋12表示；5V将用＋5表示。在应用中，也用到24V和3V电源，分别用＋24和＋3表示。3V一般用在有电池做备用电源的场合。
-This paper will summarize our company designed the power supply circuit, from which we extract the Power platform, for your reference. We usually use the working voltage of 12 V and 5 V. 12V Relay mainly used to drive to work or buzzer sounded, in this platform will be used +12 said. 5V will be used +5 said. In this application, also applied to 24 V and 3 V power supply, and were used +24 +3 said. 3V is generally done in a standby power batteries occasions.
Platform: |
Size: 43878 |
Author: Qu chun lei |
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Description: 当手指或笔触摸屏幕时，平常相互绝缘的两层导电层就在触摸
点位置有了一个接触，因其中一面导电层接通X轴方向的5V均匀电压场(图a)
，使得检测层的电压由零变为非零，控制器侦测到这个接通后，进行A/D转换
，并将得到的电压值与5V相比即可得触摸点的X轴坐标为（原点在靠近接地点
的那端）：Xi=Lx＊Vi / V（即分压原理）同理得出Y轴的坐标，这就是所有电
阻技术触摸屏共同的最基本原理。-finger or pen to touch the screen, usually two mutually insulated conductive layer on location in touch with a contact, because either side conductive layer connected to the X-axis 5 V voltage field uniformity (a map), measuring the voltage level from zero to nonzero, the controller connected to the detection of this now, A / D conversion, and the voltage V compared with the five it can touch points for the X axis coordinates (close to the original point of getting access locations) : Xi'an Lx = Vi * / V (ie pressure principle) come empathy Y axis coordinates, This is all technical resistance Touchscreen common basic principles.
Platform: |
Size: 64547 |
Author: 简其平 |
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Description: 1.1 一般说明
IMP705/706/707/708和IMP813L等CMOS监控电路能监控电源及电池电压和μP/μC的工作状况。当电源电
压降至4.65V以下（IMP705/707/813L）或4.40V以下（IMP706/708）时，即产生复位。
该系列产品能提供多种功能。每个器件在上电、掉电期间及在电压降低的情况下可产生一个复位信号。
此外，IMP705/706/813L带有一个1.6秒的看门狗定时器。IMP707/708虽然无看门狗功能，但是同时具有高电
平有效和低电平有效的复位输出，IMP813L的引脚和功能与IMP705相同但只具有高电平有效的复位输出。具
有1.25V门限的电源故障报警电路可用于检测电池电压和非5V的电源。所有器件都具有手动复位（MR）输入。
看门狗定时器的输出如果连接至MR将会触发复位信号。
所有器件都具有8脚DIP、SO和MicroSO封装。
Platform: |
Size: 186648 |
Author: chen |
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Description: 数控电源的源程序(完全原创,已试验成功),0-25.5V可调,步进0.1V.-NC power source (complete original, has been successfully tested) ,0-adjustable 25.5 V, Step 0.1 V.
Platform: |
Size: 108752 |
Author: 文文 |
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Description: 本实验以常见的1602B字符型LCD模块为例，介绍该模块的简单使用。1602B可以显示2行16个字符，有8位数据总线D0-D7，和RS、R/W、EN三个控制端口，工作电压为5V，并且带有字符对比度调节和背光。-this experiment common 1602B character LCD module, the module is a simple to use. 1602B shows two line 16 characters, 8-bit data bus D0 - D7, and RS, R / W, EN three control ports, working voltage of 5 V, with characters and adjust contrast and backlight.
Platform: |
Size: 24420 |
Author: lhch |
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Description: 关于汇编语言的产生制作电压表的程序，可以控制0——5V的-on assembly language for the selection of voltage meter production procedures can be controlled 0 -- 5V
Platform: |
Size: 1140 |
Author: 黄云 |
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Description: 用变压器+整流桥+滤波器+稳压器构成5v的直流电源，以此作为D/A转换器（DAC0832）的基准电压，用AT89C51+8155+键盘+LED的单片机小系统控制进入DAC0832的数字量达到数控的目的 -transformer rectifier bridge filter Regulators constitute 5v DC power supply, as D / A converters (DAC0832) voltage, AT89C51 8155 with the keyboard LED small SCM system control access to the figures amounted DAC0832 The purpose of NC
Platform: |
Size: 4789 |
Author: 万红军 |
Hits:
Description: 4路输出均为0--5V,示波器显示波形为三角波.-four output are 0 -- 5V, Oscilloscope waveforms show for triangular wave.
Platform: |
Size: 6290 |
Author: 于海宾 |
Hits:
Description: 由2个外部单刀单掷开关来完成所有时间的设置。可选择12小时或24小时两种显示模式。该电路可通过内部5V 的电压调整器由电池进行供电或使用一个外部固定的电源供电-by two external single broadsword single throw switches all the time to complete the installation. Choice of 12-hour or 24-hour two display modes. The circuit through internal 5 V voltage regulator for electricity from the battery or the use of an external power supply fixed
Platform: |
Size: 103092 |
Author: 袁勇 |
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Description: 已调试成功的ADC0832程序,内有用PROTEUS画的仿真电路图,可将从外界采集到的0~5V电压在数码管上显示-has been successful ADC0832 debugging procedures useful PROTEUS painting within the simulation circuit, can be collected from outside the 0 - 5V voltage displayed on the digital control
Platform: |
Size: 17350 |
Author: 吴健 |
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Description: 电源开发资料,能够使电源降压,输入在7--40V的范围,输出为5V-power development information, enabling relief Power importation 7 -- the 40V, 5V output
Platform: |
Size: 481949 |
Author: wang qf |
Hits:
Description: 简易数字电压表的设计2
利用单片机AT89S51与ADC0809设计一个数字电压表，能够测量0－5V之间的直流电压值，四位数码显示，但要求使用的元器件数目最少。-simple digital voltage meter design AT89S51 2 microprocessor design with a few Connection between ADC 0809 word voltage meter, capable of measuring 0 - 5V DC voltage between the value of four digital display, it requires the use of at least the number of components.
Platform: |
Size: 90636 |
Author: 何镇安 |
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