Sille Van Landschoot / RGB-fun

simple RGB led library

Dependents:   m3Dpi MQTT-Thermostat-example Final_project_Tran Final_project_Tran ... more

RGB-fun

RGB library used to control RGB leds using PWM modulation to dim and mix the individual colors. The library uses a Color helper class to define the colors. It is possible to define colors in these ways:

  • web color notation: #FF00AA
  • Integer notation: 0 - 255
  • Floating point notation: 0.0 - 1.0

By combining red, green and blue a great amount of colors can be created. This class can accept color objects or colors in hexadecimal notation (web color notation).

Note

Effects and effectsmanager are still experimental and not documented.

RGB class reference

Import library
RGB-fun - RGB Class Reference

Public Member Functions

RGB (PinName r_pin, PinName g_pin, PinName b_pin)
Create a new RGB instance.
void setColor ( Color *color)
Set the color by giving an instance of an Color object.
void setColor (int color)
Set the color by giving an integer in hexadecimal notation.
Color * getColor ()
Get the current color of the RGB led.
void off ()
Turn the led off.

Color class reference

Import library
RGB-fun - Color Class Reference

Public Types

enum Colors

Enum with named colors for easy use.

More...

Public Member Functions

Color (int red, int green, int blue)
Create Color instance, giving individual red, green and blue factors as integer values.
Color (float red, float green, float blue)
Create Color instance, giving individual red, green and blue factors as floating point values.
Color (int hexColor)
Create Color instance, giving red, green and blue factors as a single integer value.
int getHex ()
Get the color value as an integer in hexadecimal notation.
int getRed ()
Get the red factor of the color.
int getGreen ()
Get the green factor of the color.
int getBlue ()
Get the blue factor of the color.

Example

Repository: rgb-fun-helloworld

HeartBeatEffect.cpp@2:ed46f45e1d66, 2015-10-08 (annotated)

Committer:
sillevl
Date:
Thu Oct 08 21:43:02 2015 +0000
Revision:
2:ed46f45e1d66
added effects class

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sillevl 2:ed46f45e1d66 1
sillevl 2:ed46f45e1d66 2 #include "HeartBeatEffect.h"
sillevl 2:ed46f45e1d66 3
sillevl 2:ed46f45e1d66 4 HeartBeatEffect::HeartBeatEffect(RGB* led) : Effect(led){
sillevl 2:ed46f45e1d66 5 updown = true;
sillevl 2:ed46f45e1d66 6 brightness = 0;
sillevl 2:ed46f45e1d66 7 }
sillevl 2:ed46f45e1d66 8
sillevl 2:ed46f45e1d66 9 void HeartBeatEffect::run(){
sillevl 2:ed46f45e1d66 10 if(updown){
sillevl 2:ed46f45e1d66 11 brightness += 10;
sillevl 2:ed46f45e1d66 12 } else {
sillevl 2:ed46f45e1d66 13 brightness -= 20;
sillevl 2:ed46f45e1d66 14 }
sillevl 2:ed46f45e1d66 15
sillevl 2:ed46f45e1d66 16 if(brightness > 255 || brightness < 0) changeDirection();
sillevl 2:ed46f45e1d66 17 brightness = saturate(brightness);
sillevl 2:ed46f45e1d66 18
sillevl 2:ed46f45e1d66 19 setLight(brightness);
sillevl 2:ed46f45e1d66 20 wait(0.02 * speed);
sillevl 2:ed46f45e1d66 21 }
sillevl 2:ed46f45e1d66 22
sillevl 2:ed46f45e1d66 23 void HeartBeatEffect::setLight(int value){
sillevl 2:ed46f45e1d66 24
sillevl 2:ed46f45e1d66 25 led->setColor( value << 16);
sillevl 2:ed46f45e1d66 26 }
sillevl 2:ed46f45e1d66 27
sillevl 2:ed46f45e1d66 28 void HeartBeatEffect::changeDirection(){
sillevl 2:ed46f45e1d66 29 updown = !updown;
sillevl 2:ed46f45e1d66 30 }
sillevl 2:ed46f45e1d66 31
sillevl 2:ed46f45e1d66 32 int HeartBeatEffect::saturate(int value){
sillevl 2:ed46f45e1d66 33 if(value > 255) value = 255;
sillevl 2:ed46f45e1d66 34 if(value < 0) value = 0;
sillevl 2:ed46f45e1d66 35 return value;
sillevl 2:ed46f45e1d66 36 }