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P0口的数码管显示转换值。



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 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 display: the mouth of the use of P0 digital display conversion values. Display range: 0.00- 5.10 (unit: V) connection: AD_CLK → P1.0 AD_DAT → P1.1 AD_CS → P3.4 analog input → CH0 (AD_DAT = DO+ DI) ADC0832 output maximum conversion value = FFH (255 ) to set the maximum measured value = 5.1V255X = 5.1 X = 0.02 which is to take 2 and then divided by 100 (the decimal point on the third digital tube)