INTRODUCTION:

SPECIFICATIONS:

CODE:

#include <LiquidCrystal.h>
#include <BlynkSimpleStream.h>
#include <SimpleTimer.h>
#define BLYNK_PRINT Serial

LiquidCrystal lcd(6, 7, 5, 4, 3, 2);
float volt = 0;
int analogPin = 0;
int raw = 0;
int Vin = 5;
float R1 = 1000;
float R2 = 0;
float buffer = 0;

byte omega[8] = 
              {             
                0b00000,
                0b01110,
                0b10001,
                0b10001,
                0b01010,
                0b01010,
                0b11011,
                0b00000
              };
              
char auth[] = "74287f4901e3471aa0ba6d11402fd363";
SimpleTimer timer;

void showVal() {
  volt= (analogRead(A1)*55)/1023.0;
  lcd.setCursor(9, 0);
  lcd.print(volt);
  
  raw= analogRead(analogPin);
  if(raw){
    R2= R1 * ((1023/raw)-1);
    lcd.setCursor(4, 1);
    lcd.print(R2);
    lcd.print("");
   }
}

void sendMulti() {
  Blynk.virtualWrite(V0, volt);
  Blynk.virtualWrite(V1, R2);
}

void setup() {
  lcd.begin(16, 2);
  lcd.print("VOLTAGE: ");
  lcd.setCursor(15, 0);
  lcd.print("V");
  lcd.setCursor(0, 1);
  lcd.print("R2: ");
  lcd.createChar(1, omega);
  lcd.setCursor(11,1);
  lcd.write(1);
  Debug console
  Serial.begin(9600);
  Blynk will work through Serial
  Do not read or write this serial manually in your sketch
  Serial.begin(9600);
  Blynk.begin(Serial, auth);
  timer.setInterval(1000L, showVal);
  timer.setInterval(1000L, sendMulti);
}

void loop() {
  
   Blynk.run();
   timer.run();
}

MADE HERE: