Mederic Melard / PCA9633

i2c RGBW led driver push/pull or opendrain output

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PCA9633 Class Reference
Public Member Functions

PCA9633 Class Reference

PCA9633 class. More...

#include <PCA9633.h>

Public Member Functions

 PCA9633 (I2C *i2c, char addr=PCA9633::I2C_ADDR, bool invert=false, bool openDrain=false)
 Create PCA9633 instance + config method.
void config (bool invert, bool openDrain)
 Configure.
void softReset (void)
 Soft Reset ALL PCA9633 on I2C bus.
void pwm (char bright, char pos=PCA9633::ALL)
 Set PWM value for 1 or all LED.
void dim (char val)
 Set general dimmer (if ledout = single | group) Disable BLINK.
void blink (char duty, float period)
 Blinking led (if ledout = single | group) Disable DIMMER.
void ledout (char state=PCA9633::GROUP, char pos=PCA9633::ALL)
 Set output state.

Detailed Description

PCA9633 class.

PCA9633 4-bit Fm+ I2C-bus LED driver. This driver ignore !OE pin functionality. This driver disable i2c LED All Call address. This driver disable i2c SUB addresing.

Example: 

 #include "mbed.h"
 #include "PCA9633.h"
 I2C smbus(PB_7,PB_6);

 PCA9633 leds(&smbus);
 
 int main() {
     leds.config(true, true); //The output config was openDrain and inverted
     leds.pwm(32,0);     //LED0 12.5%
     leds.pwm(64,1);     //LED1 25%     
     leds.pwm(128,2);    //LED2 50%    
     leds.pwm(255,3);    //LED3 100%
     leds.ledout(PCA9633::GROUP) //All led was dim/blink and single configurable
     led.blink(64,1.5)           //Leds blink each 1.5s with 25% duty cycle
   
     while(1) {
     }
 }

Definition at line 33 of file PCA9633.h.

Constructor & Destructor Documentation

PCA9633 ( I2C *  i2c,
char  addr = PCA9633::I2C_ADDR,
bool  invert = false,
bool  openDrain = false 
)

Create PCA9633 instance + config method.

Parameters:
I2Cinitialized I2C bus to use
addrI2C address default 0x62
invertinvert output state
outputwas opendrain or push/pull

Definition at line 27 of file PCA9633.cpp.

Member Function Documentation

void blink ( char  duty,
float  period 
)

Blinking led (if ledout = single | group) Disable DIMMER.

Parameters:
duty<0,255> duty cycle
period<0.041,10.73> is seconds

Definition at line 77 of file PCA9633.cpp.

void config ( bool  invert,
bool  openDrain 
)

Configure.

Parameters:
invertinvert output state
outputwas opendrain or push/pull

Definition at line 40 of file PCA9633.cpp.

void dim ( char  val )

Set general dimmer (if ledout = single | group) Disable BLINK.

Parameters:
valslowest pwm superimposed on led pwm

Definition at line 65 of file PCA9633.cpp.

void ledout ( char  state = PCA9633::GROUP,
char  pos = PCA9633::ALL 
)

Set output state.

Parameters:
stateoff, full(on, nopwm), single(pwm, no dim|blink), group(pwm+dim|blink)
posselect output<0,3> (all if >3)

Definition at line 91 of file PCA9633.cpp.

void pwm ( char  bright,
char  pos = PCA9633::ALL 
)

Set PWM value for 1 or all LED.

Parameters:
bright<0,255> duty cycle
posselect output<0,3> (all if >3)

Definition at line 55 of file PCA9633.cpp.

void softReset ( void   )

Soft Reset ALL PCA9633 on I2C bus.

Definition at line 50 of file PCA9633.cpp.

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