Description: 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-SCM AT89S51 ADC0809 design with a digital voltmeter to measure 0 - 5V DC voltage between the value of four digital display, but requires a minimum number of components Platform: |
Size: 1458 |
Author:风格 |
Hits:
Description: 数字电压表
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。
-digital voltmeter SCM AT89S51 ADC0809 design with a digital voltmeter, capable of measuring 0 - 5V DC voltage between the value of four digital display, but requires a minimum number of components. Platform: |
Size: 48172 |
Author:杨觉 |
Hits:
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: 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-SCM AT89S51 ADC0809 design with a digital voltmeter to measure 0- 5V DC voltage between the value of four digital display, but requires a minimum number of components Platform: |
Size: 1024 |
Author:风格 |
Hits:
Description: 数字电压表
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。
-digital voltmeter SCM AT89S51 ADC0809 design with a digital voltmeter, capable of measuring 0- 5V DC voltage between the value of four digital display, but requires a minimum number of components. Platform: |
Size: 48128 |
Author:杨觉 |
Hits:
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: 7168 |
Author:lmhit |
Hits:
Description: 数字电压表该利用单片机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。-Digital voltage meter to the use of microcontroller AT89S51 with the design of a digital voltmeter ADC0809, capable of measuring 0-5V DC voltage between the value of four digital display, but requires the use of a minimum number of components. Platform: |
Size: 46080 |
Author:luxiuxiang |
Hits:
Description: 数字电压表源代码，实现自动测量电压并以液晶显示，精度精确到0.01v，测量范围5v-Digital Voltmeter source code for automatic measurement of voltage and to liquid crystal display, precision, accurate to 0.01v, measuring range 5v Platform: |
Size: 1024 |
Author:许文 |
Hits:
Description: 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。-MCU AT89S51 and ADC0809 design using a digital voltmeter that can measure between 0-5V DC voltage, 4 digital display, but requires a minimum number of components. Platform: |
Size: 47104 |
Author:wangcan |
Hits:
Description: 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。-MCU AT89S51 and ADC0809 design using a digital voltmeter that can measure between 0-5V DC voltage, 4 digital display. Platform: |
Size: 46080 |
Author:遥望 |
Hits:
Description: 基于单片机的数字电压表，采用TLC549芯片，测量0-5V电压-Based on SCM digital voltmeter measurement, the chip, meet 0-5V voltage
Platform: |
Size: 260096 |
Author:张资平 |
Hits:
Description: 采用51系列单片机和ADC设计一个数字电压表，输入为0～5V线性模拟信号，输出通过LED显示，要求显示两位小数-ADC with 51 computers and design a digital voltmeter, input signal 0 ~ 5V linear analog output through the LED display, asked to show two decimal places Platform: |
Size: 56320 |
Author:jy |
Hits:
Description: 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。-AT89S51 and ADC0809 microchip design a digital voltmeter, capable of measuring between 0-5V DC voltage, four digital display, but requires a minimum number of components. Platform: |
Size: 12288 |
Author:刘生财 |
Hits:
Description: 利用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-Design a digital voltmeter using AT89S51 and ADC0809 , capable of measuring between 0-5V DC voltage, four LED display Platform: |
Size: 1024 |
Author:贾苗 |
Hits:
Description: 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。-AT89S51 and ADC0809 microchip design a digital voltmeter, capable of measuring between 0-5V DC voltage, four digital display, but requires a minimum number of components. Platform: |
Size: 119808 |
Author:沈洋 |
Hits:
Description: 用52单片机制作简易0-5V的电压表，原理简单，只要52单片机，ADC0809，数码管。-Voltmeter with a 52 chip making simple 0-5V voltmeter, is simple in principle, as long as 52 single-chip, ADC0809, digital control.
Platform: |
Size: 22528 |
Author:宋乐心 |
Hits:
Description: 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-Microcontroller AT89S51 with ADC0809 design using a digital voltmeter to measure the 0-5V DC voltage between the value of four digital display Platform: |
Size: 44032 |
Author:吴辉 |
Hits:
Description: 用51系列单片机和ADC设计一个数字电压表，输入为0～5V线性模拟信号，输出通过LED显示，要求显示两位小数。-ADC with 51 computers and design a digital voltmeter, the input is 0 ~ 5V linear analog signal output via LED display, required to display two decimal places. Platform: |
Size: 297984 |
Author:刘斌 |
Hits:
Description: Theory behind calculation of Voltage divider circuit.
All we want is input voltage to ADC should not increase 5V and
Our maximum I/p Voltage to voltmeter is 15V only. So we design
the voltage divider circuit as follows.
where Vmax is Maximum i/p voltage to voltmeter.
Vip is i/p voltage to ADC.
R1 and R2 are resistance of voltage divider circuit.
Vmax
---
|
\
/ R1
\
/
|___ I/p (Vip)
|
\
/ R2
\
/
|
|
V
GND
Vmax = 15V
V = R2*Vmax/(R1+R2)
5/15 = R2/R1+R2
3 = R1/R2+1
2 = R1/R2
R2 = R1/2
Lets take R1 as 200K
and R2 will be 100K
Maximum current: Imax = (Vmax-Vipmax)/R1 (approx)
Vmax = 15V
Vipmax = 5V
R1 = 200K
Imax = (15-5)/200 = 10/200 = 0.02mA Platform: |
Size: 79034 |
Author:arunvtkl |
Hits:
Search - 0-5V digital voltmeter