error: expected unqualified-id before '{' token

Using Arduino Programming Questions
1

Hi,

I have attached a Ping))) sensor (http://arduino.cc/en/Tutorial/Ping?from=Tutorial.UltrasoundSensor) and an Easy Driver (Easy Driver stepper motor driver) to my Arduino. I am trying to make a bipolar 12v stepper motor rotate once (200 steps) for every 10 cm that the Ping))) senses.

I keep getting the "error: expected unquealified-id before '{' token"

const int pingPin = 7;

long duration, inches, cm;

int steps;

void setup() {
  Serial.begin(9600); 
  pinMode(8, OUTPUT);     
  pinMode(9, OUTPUT);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
}

void loop()
{
  pinMode(pingPin, OUTPUT);
  digitalWrite(pingPin, LOW);
  delayMicroseconds(2);
  digitalWrite(pingPin, HIGH);
  delayMicroseconds(5);
  digitalWrite(pingPin, LOW);

  pinMode(pingPin, INPUT);
  duration = pulseIn(pingPin, HIGH);

  inches = microsecondsToInches(duration);
  cm = microsecondsToCentimeters(duration);
  
  Serial.print(inches);
  Serial.print("in, ");
  Serial.print(cm);
  Serial.print("cm");
  Serial.println();
  
  delay(100);
}


long microsecondsToInches(long microseconds)
{
   return microseconds / 74 / 2;
}

long microsecondsToCentimeters(long microseconds)
{
  return microseconds / 29 / 2;
}

{ 
  
  if (steps < cm * 20) {
 
  digitalWrite(8, LOW);
    
  digitalWrite(9, HIGH);

  delayMicroseconds(100);          

  digitalWrite(9, LOW); 

  delayMicroseconds(100);

  steps = steps + 1;
  }
  
  if (steps > cm * 20) {
  
  digitalWrite(8, HIGH);
     
  digitalWrite(9, HIGH);

  delayMicroseconds(100);          

  digitalWrite(9, LOW); 

  delayMicroseconds(100);

  steps = steps - 1;
  }
  
 if (steps == cm * 20) {
   
  digitalWrite(9, LOW); 

  delayMicroseconds(100);}
  
}

What am I doing wrong?

Thanks for any help.

2

Looks like you are missing a function on top of this block below ( it is not inside a function ):

{ 
  
  if (steps < cm * 20) {
 
  digitalWrite(8, LOW);
    
  digitalWrite(9, HIGH);

  delayMicroseconds(100);          

  digitalWrite(9, LOW); 

  delayMicroseconds(100);

  steps = steps + 1;
  }
  
  if (steps > cm * 20) {
  
  digitalWrite(8, HIGH);
     
  digitalWrite(9, HIGH);

  delayMicroseconds(100);          

  digitalWrite(9, LOW); 

  delayMicroseconds(100);

  steps = steps - 1;
  }
  
 if (steps == cm * 20) {
   
  digitalWrite(9, LOW); 

  delayMicroseconds(100);}
  
}