One Servo and four dc motors

Forum 2005-2010 (read only) Software Troubleshooting
1

Hi!
I'm french, so I hope you will understand me :slight_smile:

I've got this motor shield:

I want to make a robot, I plug my 4 dc motors to this shield, and I want to connect 1 servo to my arduino.
My servo is ok but my motors don't want to work! :cry:

#include <Servo.h> 

// motor A
int dir1PinA = 13;
int dir2PinA = 12;
int speedPinA = 10;

// motor B
int dir1PinB = 11;
int dir2PinB = 8;
int speedPinB = 9;


//servo
Servo myservo;  // create servo object to control a servo


void setup() {
   
   //motor
  pinMode(dir1PinA, OUTPUT);
  pinMode(dir2PinA, OUTPUT);
  pinMode(speedPinA, OUTPUT);
  pinMode(dir1PinB, OUTPUT);
  pinMode(dir2PinB, OUTPUT);
  pinMode(speedPinB, OUTPUT);
  
  myservo.attach(5);
}

void loop() {
 analogWrite(speedPinA, 255);
 analogWrite(speedPinB, 255);
 digitalWrite(dir1PinA, HIGH);
 digitalWrite(dir2PinA, LOW);
 digitalWrite(dir1PinB, LOW);
 digitalWrite(dir2PinB, HIGH);
 myservo.write(90); 
  delay(3000);
  myservo.write(0); 
  delay(3000);
  myservo.write(180);
   delay(3000);
}

If I delete "myservo.attach(5)" , my dc motors works fine! (but not my servo)

How can I do all work?

thx :slight_smile: