SIMULASI RANGKAIAN DC VOLTMETER MENGGUNAKAN LCD 16X2 BERBASIS ARDUINO

SKEMATIK

PROGRAM

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

int analogInput = 0;

 

float vout = 00.0;

float vin = 00.0;

float R1 = 100000.0;

float R2 = 100000.0;

int value = 0;

void setup(){

  pinMode(analogInput, INPUT);

  lcd.begin(16, 2);

  lcd.print("DC VOLTMETER");

}

void loop(){

  value = analogRead(analogInput);

  vout = (value * 5.0) / 1024.0;

  vin = vout / (R2/(R1+R2));

  if (vin<1){

  vin=1;

}

lcd.setCursor(0, 1);

lcd.print("INPUT = ");

lcd.print(vin);

lcd.print(" V");

delay(500);

}