Error in my code - please help

Using Arduino Programming Questions
1

Hi all

I am using a lm35dz to send temp to serial through adruino, The code I have modified from someone else gives this error.
Expected unqualified-id before ' { ' token

float tempC;
int tempPin = 0;
int led = 13;
int val = 25;

void setup()
{
  Serial.begin(9600);
  pinMode(led, OUTPUT);
}

void loop()

{
  tempC=analogRead(tempPin);
  tempC=(5.0*tempC*100.0)/1024.0;
  Serial.println((byte)tempC);
  delay(1000);
}

{
  if (val = >++);
  digitalWrite(led, HIGH);
}

Can some one please advise where I am going wrong here.

2 
{
  if (val = >++);
  digitalWrite(led, HIGH);
}
3 
{
  if (val = >++);
  digitalWrite(led, HIGH);
}

You have code here outside a function. You can't do that. The "loop" function ended a couple of lines earlier at the curly brace.

4

What is this supposed to do?

  if (val = >++);

Pete

5

Oh yeah, about three things wrong with this line:

  if (val = >++);
6

Thanks guys, think I understand now.

{
  
  tempC=analogRead(tempPin);
  tempC=(5.0*tempC*100.0)/1024.0;
  Serial.println((byte)tempC);
  delay(1000);
  if (val > 25) digitalWrite(led, HIGH);
}
7

Well, atleast it compiles now due to a few changes, but, still will not flash the led on pin 13

float tempC;
int tempPin = 0;
int ledPin = 13;
int val = 25;

void setup()
{
  Serial.begin(9600);
  pinMode(13, OUTPUT);
}

void loop()

{
  
  tempC=analogRead(tempPin);
  tempC=(5.0*tempC*100.0)/1024.0;
  Serial.println((byte)tempC);
  delay(1000);
  if (val > 26) digitalWrite(13, HIGH);
}
8

Not surprised. You only ever turn the pin HIGH, but never LOW.

9

In order for the LED to flash it must turn on and off. I don't see any code to turn it off, or do you mean it never turns on ?

10

never turns on but I have tried again with this. and still no good even though it compiles.

float tempC;
int tempPin = 0;
int led = 13;
int val = 25;

void setup()
{
  Serial.begin(9600);
  pinMode(led, OUTPUT);
}

void loop()

{
  
  tempC=analogRead(tempPin);
  tempC=(5.0*tempC*100.0)/1024.0;
  Serial.println((byte)tempC);
  delay(1000);
  if (val > 26) digitalWrite(13, HIGH);
  else digitalWrite(13, LOW);
}
11

I think I have it now.

float tempC;
int tempPin = 0;
int led = 13;
//int val = 25;

void setup()
{
  Serial.begin(9600);
  pinMode(led, OUTPUT);
}

void loop()

{
  
  tempC=analogRead(tempPin);
  tempC=(5.0*tempC*100.0)/1024.0;
  Serial.println((byte)tempC);
  delay(1000);
  if (tempC > 26) digitalWrite(13, HIGH);
  else digitalWrite(13, LOW);
}

now if i warm the sensor, the led lights.

Jesus C is hard, only been learning it for 4 hours now!!!

Thanks for your help guys.