expected initializer before int and "}" should be below input

[ketankarkare]

/*
  Arduino Temperature Controller

  YouTube video: https://www.youtube.com/watch?v=nPQIjApehwk

  Made by Daedalus
*/
#include <Wire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>
#define RELAY1  4  // Relay heating
#define RELAY2  6  // Relay cooling


int red = 8; // red LED heating
int blue = 2; // blue LED cooling


#define BACKLIGHT_PIN 13
#define ONE_WIRE_BUS 7

LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

{

  void setup()

  
    int Serial;
   Serial.begin(9600);
   sensors.begin();
   lcd.begin(20, 4);
   lcd.backlight();


 pinMode(red, OUTPUT);
 pinMode(blue, OUTPUT);
 pinMode(RELAY1, OUTPUT);
 pinMode(RELAY2, OUTPUT);

}

{
  void loop()

   
    lcd.setCursor(0, 0);
    lcd.print("    TEMP CONTROL");

}
  
  {
    sensors.requestTemperatures();
    float temperature = sensors.getTempCByIndex(0);
    lcd.setCursor(0, 2);
    lcd.print("      ");
    lcd.print(sensors.getTempCByIndex(0));
    lcd.print("\337C");
  }


  if (temperature < 25) ////// Had a bogus ';' here
  {
    digitalWrite(red, HIGH);
    digitalWrite(blue, LOW);


    lcd.setCursor(0, 3);
    lcd.print("      Heating");

  }
  digitalWrite(RELAY1, 0);
  digitalWrite(RELAY2, 1);

  else if (temperature > 25) ////// Had a bogus ';' here
  {
    digitalWrite(RELAY1, 1);
    digitalWrite(RELAY2, 0);
    digitalWrite(red, LOW);
    digitalWrite(blue, HIGH);


    lcd.setCursor(0, 4);
    lcd.print("      Cooling ");
    lcd.setCursor(0, 3);
  }

While I was trying to run the code for the thermal temperature sensor using the Arduino, I am receiving the error to initialize the Serial and along with that, it is also showing the error that the '}' should be before input. It was also showing the error that the "{ " should not be assigned after a function and I put it before the void loop. Can you guys provide me some suggestions to remove the error and help me !!!

[anon73444976]

DallasTemperature sensors(&oneWire);

{

Oops

int Serial;
   Serial.begin(9600);

Oops again

[jfragos]

Hi,

There should be quite some errors in here, what I pinpointed are:
You systematically open a curly brace '{' before the functions name - parameter. You do this:
{

• type function_name (arguments)*
• ....*

you should do:
type function_name (arguments)
{

• ....*

I suggest you stop trying to make this work and read somewhere how functions are syntaxed and the C++ coding basics. Sorry if I am dropping your morale, this is the fastest way to go on, learn more on the C++ basics. I see errors in more than 5 places.
I want to give you morale and persuade you that you CAN learn the basic syntaxing. I mean it!! Its not that hard
I am attaching two of my book's pages on this subject
If you like it it is here,
Practical Electronics and Arduino in 8 Hours
if not, there are many other great sources, maybe even greater!
You can do it it is not hard, not too easy !
Jim

[ToddL1962]

You have misplaced braces and errors in the way you have variables defined. I can't even tell how your code is supposed to flow. You need to study up on fundamental C/C++ before proceeding.

[anon73444976]

Also, you don't appear to have an action for if the temperature is 25 degrees.