Arduino RGB LED Library

rgbled.cpp

#include "rgbled.h"
void rgbLed::off(){
	emit(0,0,0);
}
void rgbLed::emit(int r, int g, int b){
	r = safeAnalog(r);
	g = safeAnalog(g);
	b = safeAnalog(b);
	if(common){
		r = 255 - r;
		g = 255 - g;
		b = 255 - b;
	}
	analogWrite(srcR, r);
	analogWrite(srcG, g);
	analogWrite(srcB, b);
}
rgbLed::rgbLed(int r, int g, int b){
	rgbLed(r, g, b, false);
}
rgbLed::rgbLed(int r, int g, int b, bool com){
	common = com;
	srcR = r;
	srcG = g;
	srcB = b;
	pinMode(r, OUTPUT);
	pinMode(g, OUTPUT);
	pinMode(b, OUTPUT);
	off();
}

rgbled.h

#ifndef RGBLED_H
#define RGBLED_H
#include "Arduino.h"
class rgbLed{
private:
	int srcR, srcG, srcB;
	bool common; // common anode => false, common cathode => true;
	inline int safeAnalog(int n) const{return min(255, max(0, n));}
public:
	rgbLed(int r, int g, int b);
	rgbLed(int r, int g, int b, bool com);
	void emit(int r, int g, int b);
	void off();
};
#endif