tinkercad ADC

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd1(0x20,16,2);

void setup()

{

  lcd1.init();

  lcd1.clear(); 

  lcd1.backlight(); 

}

void loop()

{

  float ADC_A0 = analogRead(A0);

  float V_A0 = ADC_A0 * 5 / 1024;

  

  float ADC_A1 = analogRead(A1);

  float V_A1 = ADC_A1 * 5 / 1024;

  

  lcd1.setCursor(0,0);

  lcd1.print("A0  ");

  lcd1.print(V_A0, 4);

  

  lcd1.setCursor(0,1);

  lcd1.print("A1  ");

  lcd1.print(V_A1, 4);

  

  delay(500);

}

reference:

https://www.best-microcontroller-projects.com/arduino-adc.html