I Can't Attach Servo...

Projects General Guidance
1

Hi ..I wrote a programme For Small Robot .This Is My Code

//Crazy bot test programme 
/* 2-Moter 1 input pin
 3-Moter 1 input pin
 4-Moter 2 Input pin
 5-Moter 2 Input Pin
 6-Ultrasonic Echo
 7-Ultrasonic Trigger 
 9-PMW Moter Anable Pin
 10-PMW Moter anable pin
11-Servo pin
 */
/* +++++++LOGICS++++++++
 Minimum timegap =600;
 */
#include <Servo.h> 
//Variables 
int in1M1=2;
int in2M1=3;
int in1M2=4;
int in2M2=5;
int anblM1=9;
int anblM2=10;
#define echo 6
#define trig 7
//inisiating Other Variables
int timegap;
Servo myservo;

void setup()
{

  //Serial Test
  Serial.begin(9600);
  //inisiating Moter pins
  pinMode(in1M1,OUTPUT);
  pinMode(in2M1,OUTPUT);
  pinMode(in1M2,OUTPUT);
  pinMode(in2M2,OUTPUT);
  //inisiating Ultrasonic sensor pins
  pinMode(echo,INPUT);
  pinMode(trig,OUTPUT);
  //Attching Servo
  myservo.attach(11);

}
void loop()
{
  Ultra();
  
  
}
//Ultrasonic Distence Meture Function
int Ultra()
{
  digitalWrite(trig,LOW);
  delayMicroseconds(2);
  digitalWrite(trig,HIGH);
  delayMicroseconds(2);
  digitalWrite(trig,LOW);
  delayMicroseconds(2);
  timegap= pulseIn(echo, HIGH);
  
  //Logic---Contolling The Robot
  if(timegap<600)
  {
    Mstop(timegap);
    
  }
  else
  {
    
    Mcontrolforword(timegap);
  }
  
  
  //---Logic End
}
//Moter Coltrol Function
int Mcontrolforword(int dis1)
{
 Serial.println("Going Forword");
 analogWrite(anblM1,70);
 analogWrite(anblM2,70);
 digitalWrite(in1M1,HIGH);
 digitalWrite(in2M1,LOW);
 digitalWrite(in1M2,LOW);
 digitalWrite(in2M2,HIGH);
 analogWrite(anblM1,70);
 analogWrite(anblM2,70);
 
}
int Mcontrolturn(int dis2)
{
  Serial.println("Turning");
  left();
 
}
void Mstop(int dis3)
{
  analogWrite(anblM1,0);
  analogWrite(anblM2,0);
  digitalWrite(in1M1,LOW);
  digitalWrite(in2M1,LOW);
  digitalWrite(in1M2,LOW);
  digitalWrite(in2M2,LOW);
  delay(1000);
  Serial.println("Waiting Over");
  Mcontrolturn(dis3);
  
  
}
//Turn Left Programme
void left()
{
  analogWrite(anblM2,0);
  analogWrite(anblM1,100);
  digitalWrite(in1M1,HIGH);
  digitalWrite(in2M1,LOW);
  Serial.println("Turning Left");
  analogWrite(anblM1,100);
  delay(500);
}
void right()
{
  analogWrite(anblM2,100);
  analogWrite(anblM1,0);
  digitalWrite(in1M2,HIGH);
  digitalWrite(in2M2,LOW);
}

Before I write mysrevo.attach(11); line it works with other 2 DC motors.
But ...
After i attach the servo by writing that line dc motors don't work anymore ...But when i look at the serial monitor the Mcontrolforword() function works properly ..
Does any one know why ?? Any Help Please

2

Hi damith14

How do you feed power to the DC motors and to the servo?

What happens if you leave "myservo.attach(11);" in the program, but disconnect the servo from the Arduino (all three wires)?

Regards

Ray

3

yeah ...i tried..
with or without sever connected ,after i wrote myservo.attach(11); the whole code doesn't work ...

4

Hi ...Currently im working on small robot ...
it has two dc motors & they controlled by L293D chip & Arduino Uno..I have 6v power supply for DC motors .
And it have ultrasonic sensor mount on servo ...First i wrote code for dc motors & checked it ..So dc Motors works according to code .
the problem appear when im trying to attach the servo from code ...
with or without servo connected to circuit...after very moment i wrote myservo.attach(11); dc motors doesn't work .But when i look at the serial monitor i get the "going forward" .So the code works .
any help please ???
and this is the code ..

//Crazy bot test programme 
/* 2-Moter 1 input pin
 3-Moter 1 input pin
 4-Moter 2 Input pin
 5-Moter 2 Input Pin
 6-Ultrasonic Echo
 7-Ultrasonic Trigger 
 9-PMW Moter Anable Pin
 10-PMW Moter anable pin
 */
/* +++++++LOGICS++++++++
 Minimum timegap =600;
 
 */
 #include <Servo.h> 
 
//Variables 
int in1M1=2;
int in2M1=3;
int in1M2=4;
int in2M2=5;
int anblM1=9;
int anblM2=10;
#define echo 6
#define trig 7
//inisiating Other Variables
int timegap;
Servo myservo;

void setup()
{

  //Serial Test
  Serial.begin(9600);
  //inisiating Moter pins
  pinMode(in1M1,OUTPUT);
  pinMode(in2M1,OUTPUT);
  pinMode(in1M2,OUTPUT);
  pinMode(in2M2,OUTPUT);
  //inisiating Ultrasonic sensor pins
  pinMode(echo,INPUT);
  pinMode(trig,OUTPUT);
  myservo.attach(12);//This is the line give me problem 
  myservo.write(90);

}
void loop()
{
  Ultra();
  
  
}
//Ultrasonic Distence Meture Function
int Ultra()
{
  digitalWrite(trig,LOW);
  delayMicroseconds(2);
  digitalWrite(trig,HIGH);
  delayMicroseconds(2);
  digitalWrite(trig,LOW);
  delayMicroseconds(2);
  timegap= pulseIn(echo, HIGH);
  
  //Logic---Contolling The Robot
  if(timegap<600)
  {
    Mstop(timegap);
    
  }
  else
  {
    
    Mcontrolforword(timegap);
  }
  
  
  //---Logic End
}
//Moter Coltrol Function
int Mcontrolforword(int dis1)
{
 Serial.println("Going Forword");
 analogWrite(anblM1,70);
 analogWrite(anblM2,70);
 digitalWrite(in1M1,HIGH);
 digitalWrite(in2M1,LOW);
 digitalWrite(in1M2,LOW);
 digitalWrite(in2M2,HIGH);
 analogWrite(anblM1,70);
 analogWrite(anblM2,70);
 
}
int Mcontrolturn(int dis2)
{
  Serial.println("Turning");
  left();
 
}
void Mstop(int dis3)
{
  analogWrite(anblM1,0);
  analogWrite(anblM2,0);
  digitalWrite(in1M1,LOW);
  digitalWrite(in2M1,LOW);
  digitalWrite(in1M2,LOW);
  digitalWrite(in2M2,LOW);
  delay(1000);
  Serial.println("Waiting Over");
  Mcontrolturn(dis3);
  
  
}
//Turn Left Programme
void left()
{
  analogWrite(anblM2,0);
  analogWrite(anblM1,100);
  digitalWrite(in1M1,HIGH);
  digitalWrite(in2M1,LOW);
  Serial.println("Turning Left");
  analogWrite(anblM1,100);
  delay(500);
}
void right()
{
  analogWrite(anblM2,100);
  analogWrite(anblM1,0);
  digitalWrite(in1M2,HIGH);
  digitalWrite(in2M2,LOW);
}
5

Why have you posted the same question twice in this forum?

Mark

6

Why have you posted the same question twice in this forum?

Mark

7

i removed previous one ...any answer ?

8

If you get the problem even when the servo is not physically connected I suspect it is because some of the motor connections use Pins that are put out of action by the Servo library. I think the details are in the Reference stuff.

...R

9

damith14:
i removed previous one ...any answer ?

No you didn't.
Topics merged - do NOT cross post