FadeLed.h File Reference

A simple Arduino library to fade leds on the hardware PWM. More...

#include "Arduino.h"
#include <avr/pgmspace.h>
#include "FadeLedGamma.h"

Go to the source code of this file.

Classes
class	FadeLed
	Main class of the FadeLed-library. More...

Macros
#define	FADE_LED_PWM_BITS   8
	Sets the number of bits used for the PWM. More...
#define	FADE_LED_MAX_LED   6
	Maximum number of FadeLed objects. More...
#define	FADE_LED_RESOLUTION   ((1 <<FADE_LED_PWM_BITS) -1)
	The maximum brightness step of the PWM. More...

Typedefs
typedef byte	flvar_t
	Sets the variable type used for the brightness. More...

Detailed Description

A simple Arduino library to fade leds on the hardware PWM.

This library takes all the heavy lifting of fading a led.

Macro Definition Documentation

#define FADE_LED_MAX_LED   6

Maximum number of FadeLed objects.

Default = 6, the number of hardware PWM pins on a Uno/Pro Mini/Nano

#define FADE_LED_PWM_BITS   8

Sets the number of bits used for the PWM.

Set this to a higher value for devices with higher PWM resolution. Will set the upper limit and variable type correspondingly.

Default 8-bit: 0-255 for Uno/Nano/Pro Mini etc

Warning

Can't simply increase the number to have more PWM levels. It's limited to the hardware.

#define FADE_LED_RESOLUTION   ((1 <<FADE_LED_PWM_BITS) -1)

The maximum brightness step of the PWM.

Automatically set depending on FADE_LED_PWM_BITS. 255 for 8-bit.

Warning

Can't simply be increased for resolution! It depends on the resolution of the hardware used. Set it using FADE_LED_PWM_BITS.

See also

FADE_LED_PWM_BITS

Typedef Documentation

typedef byte flvar_t

Sets the variable type used for the brightness.

Is done automatically according to FADE_LED_PWM_BITS. A byte (uint8_t) is used for 8-bit or less. A unsigned int (uint16_t) is used for anything above. So limited to 16-bit PWM.

See also

FADE_LED_PWM_BITS