Random error messages

Using Arduino Programming Questions
#1

This code below, worked before the latest update. Now, when I try to compile it, I get errors. What is wrong with it?

/*
RC Car to Robot Conversion
by Randy Sarafan

Used to convert an RC car into a robot that uses a PING sensor to avoid obstacles,
and an Arduino motor shield for motor control.

For more information see:
http://www.instructables.com/id/RC-Car-to-Robot/

Built atop Ping example code by Tom Igoe
*/

// this constant won't change.  It's the pin number

int lm1 = 8;
int lm2 = 11;
int rm1 = 12;
int rm2 = 13;
int rms = 10;
int lms = 9;


const int pingPin = 7;

void setup() {
  
  //establish motor direction toggle pins
  pinMode(8, OUTPUT); //drive motor -- HIGH = forwards and LOW = backwards
  pinMode(13, OUTPUT); //turn motor -- HIGH = left and LOW = right
  
  //establish motor brake pins
  pinMode(11, OUTPUT); //brake (disable) the drive motor
  pinMode(12, OUTPUT); //brake (disable) the turn motor
  pinMode(10, OUTPUT);
  pinMode(9, INPUT);


  //Turns brake off for drive motor
  

  //Turns brake on for turn motor
  analogWrite(lms, 500); 
  analogWrite(rms, 500);

  //Sets initial speed of drive motor
  
  digitalWrite(lm1, HIGH);
  digitalWrite(rm2, LOW);
  digitalWrite(rm1, HIGH);
  digitalWrite(lm2, LOW);
  
  
  //Sets initial direction of drive motor
  
}

void loop()
{
  // establish variables for duration of the ping, 
  // and the distance result in inches and centimeters:
  long duration, inches, cm;

  // The PING))) is triggered by a HIGH pulse of 2 or more microseconds.
  // Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
  pinMode(pingPin, OUTPUT);
  digitalWrite(pingPin, LOW);
  delayMicroseconds(2);
  digitalWrite(pingPin, HIGH);
  delayMicroseconds(5);
  digitalWrite(pingPin, LOW);

  // The same pin is used to read the signal from the PING))): a HIGH
  // pulse whose duration is the time (in microseconds) from the sending
  // of the ping to the reception of its echo off of an object.
  pinMode(pingPin, INPUT);
  duration = pulseIn(pingPin, HIGH);

  // convert the time into a distance
  inches = microsecondsToInches(duration);

  //
  //if objects are less than 12 inches away
  //the robot reverses and turns to the right
  //for 2 seconds
  //
  
  if (inches < 12){
    
    //brake drive motor and pause 1/10 second
    digitalWrite(rm1, HIGH);
    digitalWrite(lm1, HIGH);
    delay(100);
   
    //
    //setting turn motor
    //
    digitalWrite(rm2, LOW);
    digitalWrite(lm2, HIGH);
    analogWrite(lms, 500);
    analogWrite(rms, 750);
    //turn off brake for turn motor 
    digitalWrite(rm1, HIGH);
    digitalWrite(lm1, HIGH);
    delay(2000);
    
    digitalWrite(lms, 0);
    digitalWrite(rms, 0);
    delay(2000);
    digitalWrite(lms, 1000);
    digitalWrite(rms, 1000);

    //set turn motor direction
    

  }
  
  //
  //when nothing is within 12" 
  //the robot simply drives forwards
  //
  
  else{
    
   analogWrite(lms, 1000);
   analogWrite(rms, 1000);
   digitalWrite(lm2, HIGH);
   digitalWrite(rm2, HIGH);
   digitalWrite(rm1, LOW);
   digitalWrite(lm1, LOW); 
      }

  
  }
  
  delay(100);
}

long microsecondsToInches(long microseconds)
{
  // According to Parallax's datasheet for the PING))), there are
  // 73.746 microseconds per inch (i.e. sound travels at 1130 feet per
  // second).  This gives the distance travelled by the ping, outbound
  // and return, so we divide by 2 to get the distance of the obstacle.
  // See: http://www.parallax.com/dl/docs/prod/acc/28015-PING-v1.3.pdf
  return microseconds / 74 / 2;
}

Also, ignore the pseudo code. It is from an old modified code.

#2

goacego:
This code below, worked before the latest update. Now, when I try to compile it, I get errors. What is wrong with it?

The latest update of what? Your code?

Whatever the errors say, is what's wrong with it. But you didn't post them so nobody but you knows what they are.

#3

goacego:
This code below, worked before the latest update. Now, when I try to compile it, I get errors. What is wrong

Considering your coding mistake, it's impossible that the exact same code compiled fine with a previous version of the Arduino IDE.

Count your { and your }, it doesn't match. Or, indent your code correctly and you will easily find the mistake.

#4

JimboZA:
The latest update of what? Your code?

Whatever the errors say, is what's wrong with it. But you didn't post them so nobody but you knows what they are.

The latest IDE update.

guix:
Considering your coding mistake, it's impossible that the exact same code compiled fine with a previous version.

Count your { and your }, it doesn't match. Or, indent your code correctly and you will easily find the mistake.

Thanks you so much!

#5