/**
 * @brief PCA9685 LED/Servo Driver
 * @author Michael Burmeister
 * @date November 20, 2021
 * @version 1.0
 * 
*/

#define PCA9685_MODE1 0x00
#define PCA9685_MODE2 0x01
#define PCA9685_SUBADR1 0x02
#define PCA9685_SUBADR2 0x03
#define PCA9685_SUBADR3 0x04
#define PCA9685_ALLCALLADR 0x05
#define PCA9685_LED0_ON_L 0x06
#define PCA9685_LED0_ON_H 0x07
#define PCA9685_LED0_OFF_L 0x08
#define PCA9685_LED0_OFF_H 0x09

#define PCA9685_ALLLED_ON_L 0xFA
#define PCA9685_ALLLED_ON_H 0xFB
#define PCA9685_ALLLED_OFF_L 0xFC
#define PCA9685_ALLLED_OFF_H 0xFD

#define PCA9685_PRESCALE 0xFE
#define PCA9685_TESTMODE 0xFF

#define MODE1_ALLCALL 0x01
#define MODE1_SUB3 0x02
#define MODE1_SUB2 0x04
#define MODE1_SUB1 0x08
#define MODE1_SLEEP 0x10
#define MODE1_AUTOINC 0x20
#define MODE1_EXTCLK 0x40
#define MODE1_RESTART 0x80

#define MODE2_OUTNE_0 0x01
#define MODE2_OUTNE_1 0x02
#define MODE2_OUTDRV 0x04
#define MODE2_OUTCH 0x08
#define MODE2_INVRT 0x10

#define PCA9685_ADDRESS 0x40
#define PCA9685_FREQ 25000000