RGB_LED_Module__SKU_DFR0124_-DFRobot

/*
    Description: Fades a line down the channels, with max value and duration based on
    the voltage of analog pin 0.
    See the BasicUse example for hardware setup.
    This test demo is  bases on  the example "fades" and it should include head file "tlc_fades.h". ( Written by Alex Leone <acleone ~AT~ gmail.com>, 2009-02-03 )
    Here there's something else we can improve:
    1. Connect a potentiometer to the analog 0 is better. We can see what will happen if we tune the rotary switch.
    2. Change the value of defined invariable NUM_TLCS  ( In the file: "tlc_config.h" incuded in the library folder: "Tlc5940".) from 3 to 6(if you want cascade two LED modules), to 9(if you want cascade three LED modules)...
    3. The order of channel is determined by the order of TLC microcontroller. channnel 0-15 are 16 red LEDs controlled by the first TLC microcontroller. channel 16-31 are 16 green LEDs, channel 32-47 are 16 blue LEDs.
    One RGB modules has 3 TLC microcontrollers and if you want to use two RGB LED modules, channel 48-63 are 16 red LEDS of second module, and so on.
    4. "tlc_fades.h" is well designed, easy to use but there's not much room for us to change the programming style arbitrarily. The most interesting point in this code is no delaying at all. It use the slight loop calculating
    time of computer and  returning function millis() to achieve the effect of delay. And the most important character in head file "tlc_fades.h" is "TLC_FADE_BUFFER_LENGTH" (The length of struct array: tlc_fadeBuffer[]).
    We can change the length a little bit larger. For example, change it from 24 to 40! The fading will be even smoother if we turn the analog 0 to the max value.You can try if by changing this length. However, there's one
    notation: the length cannot be extremely large because struct array is very space consuming! In arduino, global variable is stored in SRAM and SRAM is usually 2Ks or 3Ks.    .
    Author: Michael from DFrobot <zhyp90211@gmail.com>, 2012-02-06
 */
//#####################include##########################################################################
#include "Tlc5940.h"
#include "tlc_fades.h"
//######################################################################################################
TLC_CHANNEL_TYPE channel;

void setup()
{
  Tlc.init();
}

void loop()
{
  if (tlc_fadeBufferSize < TLC_FADE_BUFFER_LENGTH - 2) {
    if (!tlc_isFading(channel)) {  //update if and only if the fading of this channel is done or hasn't started.
      uint16_t duration = analogRead(0) * 2;     // the duration of fading is determined by potentiometer.
      int maxValue = analogRead(0) * 1.5;        // the brightness of fading is determined by potentiometer.
      uint32_t startMillis = millis() + 50;
      uint32_t endMillis = startMillis + duration;
      if(channel<16)
      {maxValue=maxValue*1.5;} //here we make red light brighter.
      if(channel>=16&&channel<32)
      {maxValue=maxValue*0.4;} //here we make green light darker.The purpose of it is just making the light fading look more comfortable.
      tlc_addFade(channel, 0, maxValue, startMillis, endMillis);
      tlc_addFade(channel, maxValue, 0, endMillis, endMillis + duration); //fade on and fade off
    }
    if (channel++ == NUM_TLCS * 16) {  //It keeps searching the struct array: tlc_fadeBuffer[NUM_TLCS * 16] defined in "tlc_fades.h" begging from channel 0.
      channel = 0;
    }
  }
  delay(100);
  tlc_updateFades(); //This is what LEDs are actually lighted.
}

/*
Description:    This is a demo of using 4*4 RGB LED written by Arduino 1.0. First, you will see a pattern of  face. Then, eyes are blinking. After that a red heart appears. Finally, you will see a rolling word: love.
 Guide:          1. You'd better read the example "basic use" in this library before trying to modify the code as your version.
 2. Put head files: basicProcess.h and message.h under the same folder of LEDArrayTEST2.
 3. The order of channel is determined by the order of TLC microcontroller. channnel 0-15 are 16 red LEDs controlled by the first TLC microcontroller. channel 16-31 are 16 green LEDs, channel 32-47 are
 16 blue LEDs. In our project, one RGB modules has 3 TLC microcontrollers and we use two RGB LED modules with 6 TLCS totally.Thus, channel 48-63 are 16 red LEDS of second module, and so on.
 4. Change the value of defined invariable NUM_TLCS from 3 to 6( In the file: "tlc_config.h" incuded in the library folder: "Tlc5940".) since we need two modules for this demo.
 5. "basicProcess.h" is mapping the channel into a more friendly structure so that you can use x,y axis location to process the data.
 6. "message.h"  includes the message of word: love. You can change the word to whatever you want(any word, pattern, shape) by creating x,y axis location information first.
 Author:         Michael from DFrobot
 Contact e-mail: zhyp90211@gamil.com
 Date:           2012/02/08
 */
//##########include##########################################################################################################
#include "Tlc5940.h"
#include "basicProcess.h"
#include "message.h"

//########function declaration##########################################################################################################
void face(CHANNEL *ptr,int unit, int brightness, COLOR color); //face pattern (channel structureis defined in "basicProcess.h", unit is the shifting amount)
void heart(CHANNEL *ptr,COLOR color,int brightness);  //heart pattern

//##########setup##################################################################################################################
void setup()
{
  /* Call Tlc.init() to setup the tlc.
   You can optionally pass an initial PWM value (0 - 4095) for all channels.*/
  Tlc.init();
  for (int channel=0;channel<NUM_TLCS*16;channel++)
  {
    mapping(channel);

  }
//###########face####################################################################################################
  CHANNEL* ptr;
  for(int i=-1;i<10;i++) // -1 is the starting location and 10 is the ending location of moving face, you can change it to see what happens
  {
    for (ptr=array;ptr<array+NUM_TLCS*16;ptr++)
    {
      face(ptr,i,BLUE,1000,false);     //show moving face
    }
    Tlc.update();
    /* Tlc.update() sends the data to the TLCs.  This is when the LEDs will
     actually change. */
    delay(200);
    Tlc.clear();
  }

  for(int i=0;i<5;i++)   //5 is the time of eyes'blinking, change it to see the effects
  {
    for (ptr=array;ptr<array+NUM_TLCS*16;ptr++)
    {
      face(ptr,1,BLUE,1000,i%2);
    }
    Tlc.update();
    delay(1000);
    Tlc.clear();
  }

//############heart####################################################################################################
  for (ptr=array;ptr<array+NUM_TLCS*16;ptr++)
  {
    //heart(ptr,GREEN,100);
    heart(ptr,RED,3500);

  }
  Tlc.update();
  delay(2000);
  Tlc.clear();

  MessageInitialize();  //"defined in message.h"

}

//#############loop: word rolling ######################################################################################
void loop()
{

  CHANNEL* ptr;
  for(int i=-15;i<9;i++)  //starting and ending position of word
  {
    for (ptr=array;ptr<array+NUM_TLCS*16;ptr++)
    {
      //heart(ptr,GREEN,100);
      loveMessage(ptr,i,200,BLUE);
      loveMessage(ptr,i,4000,RED);  //we blend red and blue to make purple, change the color whatever you want
    }
    Tlc.update();
    delay(200);
    Tlc.clear();
  }
}
//#################################################################################################################
void face(CHANNEL *ptr,int unit,  COLOR color, int brightness, boolean blinking)
{

  if(ptr->X==1 && (ptr->Y-1+unit)%8+1==7 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==1 && (ptr->Y-1+unit)%8+1==6 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==1 && (ptr->Y-1+unit)%8+1==5 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==2 && (ptr->Y-1+unit)%8+1==8 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==2 && (ptr->Y-1+unit)%8+1==4 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==3 && (ptr->Y-1+unit)%8+1==8 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==3 && (ptr->Y-1+unit)%8+1==7 && ptr->color==color) //locaton of left eye
  {
    Tlc.set(ptr->channel,(!blinking)*brightness);
  }
  if(ptr->X==3 && (ptr->Y-1+unit)%8+1==5 && ptr->color==color)//location of right eye
  {
    Tlc.set(ptr->channel,(!blinking)*brightness);
  }
  if(ptr->X==3 && (ptr->Y-1+unit)%8+1==4 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==4 && (ptr->Y-1+unit)%8+1==7 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==4 && (ptr->Y-1+unit)%8+1==6 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
  if(ptr->X==4 && (ptr->Y-1+unit)%8+1==5 && ptr->color==color)
 Tlc.set(ptr->channel,brightness);
}
//###################################################################################################################

void heart(CHANNEL *ptr,COLOR color,int brightness)
{
  if(ptr->X==4 && ptr->Y==6 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==4 && ptr->Y==4 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==3 && ptr->Y==7 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==3 && ptr->Y==6 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==3 && ptr->Y==5 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==3 && ptr->Y==4 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==3 && ptr->Y==3 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==2 && ptr->Y==6 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==2 && ptr->Y==5 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==2 && ptr->Y==4 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);
  if(ptr->X==1 && ptr->Y==5 && ptr->color==color)
    Tlc.set(ptr->channel,brightness);

}

/*
This headfile transfer channel into two dimensional x,y axis location and corresponding color.
the x,y axis information is as follows:
(4,4) (4,3) (4,2) (4,1)
(3,4) (3,3) (3,2) (3,1)
(2,4) (2,3) (2,2) (2,1)
(1,4) (1,3) (1,2) (1,1)
if we have more than one module:
...(4,9)    (4,8) (4,7) (4,6) (4,5)    (4,4) (4,3) (4,2) (4,1)
...(3,9)    (3,8) (3,7) (3,6) (3,5)    (3,4) (3,3) (3,2) (3,1)
...(2,9)    (2,8) (2,7) (2,6) (2,5)    (2,4) (2,3) (2,2) (2,1)
...(1,9)    (1,8) (1,7) (1,6) (1,5)    (1,4) (1,3) (1,2) (1,1)
*/

#include "Tlc5940.h"

enum COLOR{RED,GREEN,BLUE};
struct CHANNEL
{
  int X;
  int Y;
  int channel;  //(0 - NUM_TLCS*16)
  COLOR color;

};

CHANNEL array[NUM_TLCS*16];


void mapping(int channel)
 {

  CHANNEL* value=array+channel;
  //red
 if((channel%48)<16)   //48 is used to determine whether one module or multi modules. ( One module has 3 colors and each color has 16 LEDs.)
 {
 value->Y=(channel%48)%4+channel/48*4+1;
 value->X=(channel%48)/4+1;
 value->color=RED;
 value->channel=channel;
}
 //green
if((channel%48)>=16&&(channel%48)<32)
  {
 value->Y=((channel%48)-16)%4+channel/48*4+1;
 value->X=((channel%48)-16)/4+1;
 value->color=GREEN;
 value->channel=channel;

 }
 //blue
 if((channel%48)>=32&&(channel%48)<48)
  {
 value->Y=((channel%48)-16*2)%4+channel/48*4+1;
 value->X=((channel%48)-16*2)/4+1;
 value->color=BLUE;
 value->channel=channel;

 }


 }

/*
This headfile is for message inputing. Here it is a word: love. Message is initialized using two dimensional array.
for example:
0 1 1 0
1 1 1 1
1 1 1 1
0 1 1 0  can be represented as a circle.
*/
int Message[4][15]; //the dimension is according to the message you want to input
void MessageInitialize()
{
  for(int i=0;i<4;i++)
  {
    for(int j=0;j<15;j++)
    {
      Message[i][j]=0;
    }
  }
    Message[3][14]=1;
  Message[3][9]=1;
  Message[3][6]=1;
  Message[3][4]=1;
  Message[3][1]=1;
  Message[2][14]=1;
  Message[2][10]=1;
  Message[2][8]=1;
  Message[2][6]=1;
  Message[2][4]=1;
  Message[2][2]=1;
  Message[2][1]=1;
  Message[2][0]=1;
  Message[1][14]=1;
  Message[1][10]=1;
  Message[1][8]=1;
  Message[1][6]=1;
  Message[1][4]=1;
  Message[1][2]=1;
  Message[0][14]=1;
  Message[0][13]=1;
  Message[0][12]=1;
  Message[0][9]=1;
  Message[0][5]=1;
  Message[0][1]=1;
}

void loveMessage(CHANNEL *ptr,int unit,int brightness, COLOR color)  //"unit" is for horizontal shifting
{
   for(int i=0;i<4;i++)
  {
    for(int j=0;j<15;j++)
    {
     if(Message[i][j]==1)
     {

       if(ptr->X==i+1 && ptr->Y==j+1+unit && ptr->color==color)
        Tlc.set(ptr->channel,brightness);
     }
    }
  }
}