RGBLedModule.ino

/*

 RGBLedModule
 Demo an RGB LED module

 For info and circuit diagrams see https://github.com/tardate/LittleArduinoProjects/tree/master/playground/RGBLedModule

*/

#defineRED_LED_PIN9
#defineGREEN_LED_PIN10
#defineBLUE_LED_PIN11

//uncomment this line if using a Common Anode LED
//#define COMMON_ANODE

voidsetup() {
pinMode(RED_LED_PIN, OUTPUT);
pinMode(GREEN_LED_PIN, OUTPUT);
pinMode(BLUE_LED_PIN, OUTPUT);
}

voidloop() {
glow();
pause();
colorTester();
pause();
}

voidpause() {
clear();
delay(100);
}

voidglow() {
int step=1;
int step_delay=2;

for(int r=0; r<256; r+=step) setColor(r,0,0,step_delay);
for(int r=255; r>=0; r-=step) setColor(r,0,0,step_delay);

for(int g=0; g<256; g+=step) setColor(0,g,0,step_delay);
for(int g=255; g>=0; g-=step) setColor(0,g,0,step_delay);

for(int b=0; b<256; b+=step) setColor(0,0,b,step_delay);
for(int b=255; b>=0; b-=step) setColor(0,0,b,step_delay);
}

voidcolorTester() {
int step_delay=250;
setColor( 80, 0, 0,step_delay);
setColor(160, 0, 0,step_delay);
setColor( 0, 80, 0,step_delay);
setColor( 0,160, 0,step_delay);
setColor( 0, 0, 80,step_delay);
setColor( 0, 0,160,step_delay);
setColor( 80, 0, 80,step_delay);
setColor(160, 0,160,step_delay);
setColor( 0, 80, 80,step_delay);
setColor( 0,160,160,step_delay);
setColor( 80, 80, 0,step_delay);
setColor(160,160, 0,step_delay);
}

voidclear() {
setColor(0,0,0);
}

voidsetColor(int red, int green, int blue) {
 #ifdef COMMON_ANODE
 red = 255 - red;
 green = 255 - green;
 blue = 255 - blue;
 #endif
analogWrite(RED_LED_PIN, red);
analogWrite(GREEN_LED_PIN, green);
analogWrite(BLUE_LED_PIN, blue);
}

voidsetColor(int red, int green, int blue, int step_delay) {
setColor(red, green, blue);
delay(step_delay);
}