[51] i got error as nmm.c(14):error c129:missing ';' before 'panmotor'

[siddanagouda]

my program is:
#include <reg51.h> //include Servo library

const int RForward = 0;
const int RBackward = 180;
const int LForward = 180;
const int LBackward = 0;

const int RNeutral = 90;
const int LNeutral = 90; //constants for motor speed
const int pingPin = 7;
const int irPin = 0;//Sharp infrared sensor pin
const int dangerThresh = 10; //threshold for obstacles (in cm)
int leftDistance, rightDistance; //distances on either side
Servo panMotor;
Servo leftMotor;
Servo rightMotor; //declare motors
long duration; //time it takes to recieve PING))) signal

void setup()
{ rightMotor.attach(11);
leftMotor.attach(10);
panMotor.attach(6); //attach motors to proper pins
panMotor.write(90); //set PING))) pan to center
}

void loop()
{
int distanceFwd = ping();
if (distanceFwd>dangerThresh) //if path is clear
{
leftMotor.write(LForward);
rightMotor.write(RForward); //move forward
}
else //if path is blocked
{
leftMotor.write(LNeutral);
rightMotor.write(RNeutral);
panMotor.write(0);
delay(500);
rightDistance = ping(); //scan to the right
delay(500);
panMotor.write(180);
delay(700);
leftDistance = ping(); //scan to the left
delay(500);
panMotor.write(90); //return to center
delay(100);
compareDistance();
}
}

void compareDistance()
{
if (leftDistance>rightDistance) //if left is less obstructed
{
leftMotor.write(LBackward);
rightMotor.write(RForward); //turn left
delay(500);
}
else if (rightDistance>leftDistance) //if right is less obstructed
{
leftMotor.write(LForward);
rightMotor.write(RBackward); //turn right
delay(500);
}
else //if they are equally obstructed
{
leftMotor.write(LForward);
rightMotor.write(RBackward); //turn 180 degrees
delay(1000);
}
}

long ping()
{
// Send out PING))) signal pulse
pinMode(pingPin, OUTPUT);
digitalWrite(pingPin, LOW);
delayMicroseconds(2);
digitalWrite(pingPin, HIGH);
delayMicroseconds(5);
digitalWrite(pingPin, LOW);

//Get duration it takes to receive echo
pinMode(pingPin, INPUT);
duration = pulseIn(pingPin, HIGH);

//Convert duration into distance
return duration / 29 / 2;
}

 

[nagkiller]

No types declared in or union!!!
"
Servo panMotor;
Servo leftMotor;
Servo rightMotor; //declare motors
"

Is a INT, CHAR, CONST, etc ???

Which compiler used (Arduino???)???

 

[milan.rajik]

Where did you get that code from. It seems you are mixing 8051 and Arduino code.

 

[nagkiller]

I found this code on Instructables!!!

This is a How To Make an Obstacle Avoiding Arduino Robot!!!

"

/*MAEP 2.0 Navigation 
by Noah Moroze, aka GeneralGeek 
This code has been released under a Attribution-NonCommercial-ShareAlike license, more info at http://creativecommons.org/licenses/ 
PING))) code by David A. Mellis and Tom Igoe http://www.arduino.cc/en/Tutorial/Ping 
*/ 
#include <Servo.h>//include Servo library

const int RForward = 0; 
const int RBackward = 180; 
const int LForward = 0; 
const int LBackward = 180; 
const int RNeutral = 90; 
const int LNeutral = 90; //constants for motor speed 
const int trigpin = 7; 
const int echopin = 3; 
const int dangerThresh = 10; //threshold for obstacles (in cm) 
int leftDistance, rightDistance; //distances on either side 
Servo panMotor; 
Servo leftMotor; 
Servo rightMotor; //declare motors 
long duration; //time it takes to recieve PING))) signal 

void setup() 
{ 
rightMotor.attach(11); 
leftMotor.attach(10); 
panMotor.attach(6); //attach motors to proper pins 
panMotor.write(90); //set PING))) pan to center 
} 

void loop() 
{ 
int distanceFwd = ping(); 
if (distanceFwd>dangerThresh) //if path is clear 
{ 
leftMotor.write(LForward); 
rightMotor.write(RForward); //move forward 
} 
else //if path is blocked 
{ 
leftMotor.write(LNeutral); 
rightMotor.write(RNeutral); 
panMotor.write(0); 
delay(500); 
rightDistance = ping(); //scan to the right 
delay(500); 
panMotor.write(180); 
delay(700); 
leftDistance = ping(); //scan to the left 
delay(500); 
panMotor.write(90); //return to center 
delay(100); 
compareDistance(); 
} 
} 

void compareDistance() 
{ 
if (leftDistance>rightDistance) //if left is less obstructed 
{ 
leftMotor.write(LBackward); 
rightMotor.write(RForward); //turn left 
delay(500); 
} 
else if (rightDistance>leftDistance) //if right is less obstructed 
{ 
leftMotor.write(LForward); 
rightMotor.write(RBackward); //turn right 
delay(500); 
} 
else //if they are equally obstructed 
{ 
leftMotor.write(LForward); 
rightMotor.write(RBackward); //turn 180 degrees 
delay(1000); 
} 
} 

long ping() 
{ 
// Send out PING))) signal pulse 
pinMode(trigpin, OUTPUT); 
pinMode(echopin,INPUT); 
digitalWrite(trigpin, LOW); 
delayMicroseconds(2); 
digitalWrite(trigpin, HIGH); 
delayMicroseconds(10); 
digitalWrite(trigpin, LOW); 

//Get duration it takes to receive echo 

duration = pulseIn(echopin, HIGH); 

//Convert duration into distance 
return duration / 29 / 2; 
}

"