Servo::attach Method (int, int, int)

Syntax

VMUINT8 attach(
    int pin, 
    int min, 
    int max
);

Attaches servo motor to a digital pin. Only digital pins supporting PWM (D3, D9) can use this function.

Parameters	Description
int pin	The pin which needs servo attachment.
int min	(Optional)lower bound of PW, ms; PWM when servo motor is at 0 degree (default: 544).
int max	(Optional)upper bound of PW, ms, PWM when servo motor is at 180 degrees (default: 2400).

Channel number or

0: Failed.

#include <Servo.h>
 
Servo myservo;
 
void setup()
{
  myservo.attach(9);
}
 
void loop() 
{
  
}

Servo.h