Arduino数字电压表数字电压表5V-项目开发项目开发
Components and supplies
Arduino Nano R3
× 1
Breadboard (generic)
× 1
Adafruit Standard LCD - 16x2 White on Blue
× 1
Jumper wires (generic)
× 1
About this project
Arduino Digital Voltmeter is a digital voltmeter which can measure voltage upto 5V.
Watch this video for detailed Information...
Code
Arduino Code for Arduino Digital Voltmeter
Arduino Code for Arduino Digital Voltmeter C/C++
this is the code for digital voltmeter
#include<LiquidCrystal.h>
LiquidCrystal lcd(12,11,5,4,3,2);
int analogPin=1;
void setup()
{
lcd.begin(16,2);
}
void loop()
{
int v=analogRead(analogPin);
voltage=v/1023*5.0;
lcd.print("voltage=");
lcd.print(voltage);
}
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