ARDUINO DERS-20 (DC Voltmetre)

Devre seması


MAZEMELER

  • 1X lcd
  • 1X arduino
  • 1X 10k direnc
  • 1X 100k direnc
  • 1X 10 k potasyometre



DEVRE KODU

#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

int analogInput=0;
float vout=0.0;
float vin=0.0;
float R1=100000.0;
float R2=10000.0;
int value=0;

void setup() {

pinMode(analogInput,INPUT);
lcd.begin(16,2),
lcd.print("DC VOLTMETRE");

}

void loop() {

value=analogRead(analogInput);
vout=(value*5.0)/1024.0;
vin=vout/(R2/(R1+R2));
if(vin<0.09){
vin=0.0;

}

lcd.setCursor(0,1);
lcd.print("VOLTAJ V=");
lcd.print(vin);

delay(500);

}

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