แบบฝึกหัดที่ 11






#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
int aval,temp_aval=0;
void setup()
{
  lcd.begin();
  lcd.setCursor(0,0);
  lcd.print("aval = ");
}
void loop()
{
   aval = analogRead(A0);
   if (temp_aval != aval)
   {
      lcd.setCursor(7,0);
      lcd.print("    ");
   }
   lcd.setCursor(7,0);
   lcd.print(aval);
   temp_aval = aval;
   delay(300);
}


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