File content as of revision 4:b439851f9d20:

/*************************************************** 
  This is a library for our Adafruit 16-channel PWM & Servo driver
  Pick one up today in the adafruit shop!
  ------> http://www.adafruit.com/products/815
  These displays use I2C to communicate, 2 pins are required to  
  interface. For Arduino UNOs, thats SCL -> Analog 5, SDA -> Analog 4
  Adafruit invests time and resources providing this open source code, 
  please support Adafruit and open-source hardware by purchasing 
  products from Adafruit!
  Written by Limor Fried/Ladyada for Adafruit Industries.  
  BSD license, all text above must be included in any redistribution
 ****************************************************/
 /*****************************
  This program was ported from https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library.
  I also added some functions.
  Shundo Kishi
 *****************************/

#ifndef _ADAFRUIT_PWMServoDriver_H
#define _ADAFRUIT_PWMServoDriver_H

#include "mbed.h"
#include <cmath>

#define PCA9685_SUBADR1 0x2
#define PCA9685_SUBADR2 0x3
#define PCA9685_SUBADR3 0x4

#define PCA9685_MODE1 0x0
#define PCA9685_PRESCALE 0xFE

#define LED0_ON_L 0x6
#define LED0_ON_H 0x7
#define LED0_OFF_L 0x8
#define LED0_OFF_H 0x9

#define ALLLED_ON_L 0xFA
#define ALLLED_ON_H 0xFB
#define ALLLED_OFF_L 0xFC
#define ALLLED_OFF_H 0xFD

class AFPSD {
public:
    AFPSD( const int addr, I2C* i2c );
    void begin( void );
    void reset( void );
    void setPWMFreq( const float freq );
    void setPrescale( const uint8_t prescale );
    void setPWM( const uint8_t num, const uint16_t on, const uint16_t off );
    void setDuty( const uint8_t num, uint16_t duty );

private:
    // properties
    /// external i2c object
    I2C* _i2c;
    /// device (815) address on the i2c bus
    int _devaddr;

    // methods
    uint8_t _read8(char pin);
    void _write8(char pin, char d);
};

#endif