Servo Class Reference

#include <Servo.h>

List of all members.

Public Member Functions
void	calibrate (float range=0.0005, float degrees=45.0)
	operator float ()
Servo &	operator= (float percent)
Servo &	operator= (Servo &rhs)
void	position (float degrees)
float	read ()
	Servo (PinName pin)
void	write (float percent)
Protected Attributes
float	_degrees
float	_p
PwmOut	_pwm
float	_range

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Detailed Description

Servo control class, based on a PwmOut

Example:

 // Continuously sweep the servo through it's full range
 #include "mbed.h"
 #include "Servo.h"
 
 Servo myservo(p21);
 
 int main() {
     while(1) {
         for(int i=0; i<100; i++) {
             myservo = i/100.0;
             wait(0.01);
         }
         for(int i=100; i>0; i--) {
             myservo = i/100.0;
             wait(0.01);
         }
     }
 }

Definition at line 52 of file Servo.h.

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Constructor & Destructor Documentation

Servo::Servo

(

PinName

pin

)

Create a servo object connected to the specified PwmOut pin

Parameters:

pin	PwmOut pin to connect to

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Member Function Documentation

void Servo::calibrate	(	float	range = 0.0005,
		float	degrees = 45.0
	)

Allows calibration of the range and angles for a particular servo

Parameters:

range	Pulsewidth range from center (1.5ms) to maximum/minimum position in seconds
degrees	Angle from centre to maximum/minimum position in degrees

Servo::operator float

(

)

Servo& Servo::operator=

(

float

percent

)

Shorthand for the write and read functions

Servo& Servo::operator=

(

Servo &

rhs

)

void Servo::position

(

float

degrees

)

Set the servo position

Parameters:

degrees

Servo position in degrees

float Servo::read

(

)

Read the servo motors current position

Parameters:

returns

A normalised number 0.0-1.0 representing the full range.

void Servo::write

(

float

percent

)

Set the servo position, normalised to it's full range

Parameters:

percent

A normalised number 0.0-1.0 to represent the full range.

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Member Data Documentation

float Servo::_degrees [protected]

Definition at line 94 of file Servo.h.

float Servo::_p [protected]

Definition at line 95 of file Servo.h.

PwmOut Servo::_pwm [protected]

Definition at line 92 of file Servo.h.

float Servo::_range [protected]

Definition at line 93 of file Servo.h.

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The documentation for this class was generated from the following file:

• Servo.h