#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);

#define Switch 10
#define Switch2 8

float Counter=0;     // 0.1 se badhega ya ghatega....me yaha 0.5 kar raha hun

void setup() {

  pinMode(Switch,INPUT_PULLUP);
  pinMode(Switch2,INPUT_PULLUP);

  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Starting...");
  delay(2000);
  lcd.clear();

  lcd.setCursor(0, 0);
  lcd.print("Set Point =");

  lcd.setCursor(12, 0);
  lcd.print(Counter);
}

void loop() {

if(digitalRead(Switch)==0){

  Counter+=0.5;      // 0.1 se badhega ya ghatega....me yaha 0.5 kar raha hun

  lcd.setCursor(0, 0);
  lcd.print("Set Point =");

  lcd.setCursor(12, 0);
  lcd.print(Counter);

  while(digitalRead(Switch)==0);

  delay(20);//Debounce 

}

if(digitalRead(Switch2)==0){

 Counter-=0.5;      // 0.1 se badhega ya ghatega....me yaha 0.5 kar raha hun

  lcd.setCursor(0, 0);
  lcd.print("Set Point =");

  lcd.setCursor(12, 0);
  lcd.print(Counter);

  while(digitalRead(Switch2)==0);

  delay(20);//Debounce 

}

}