#include <SoftwareSerial.h>
const int num_nodes = 9;
const int cycle_delay = 1; //ms
int counter = 0;

SoftwareSerial mySerial(4, 3); // RX, TX

void setup(){
  mySerial.begin(9600); 
}

int delta(int i,int j){
 if(i==j){
  return 1;
 }
 else{
  return 0;
 } 
}

//int color_list[9][3] ={{0, 0, 126},{0,0, 252},{0, 126, 255},{0, 252,  252},{126, 255, 126},{252, 252, 0},{255, 126, 0},{252, 0, 0},{126, 0, 0}};
int color_list[6][3] ={{0, 0, 255},{0,255,255},{0,255, 0},{255,255,0},{255, 0, 0},{255,0,255}};

int black[] = {0,0,0};

void loop(){  
  for(int i=0; i<num_nodes; ++i){
    //send framing
    mySerial.write(1);
    mySerial.write(2);
    mySerial.write(3);
    mySerial.write(4);
    //address the node
    mySerial.write(i+1);
    //mySerial.write( 255*delta(0,i) );
    //mySerial.write( 255*delta(1,i) );
    //mySerial.write( 255*delta(2,i) );
    for(int j=0; j<3; ++j){
      mySerial.write( color_list[(i+counter/2)%6][j] );  

      //      if (delta(i,counter%num_nodes) == 1){
//        mySerial.write( black[j] );  
//      }
//      else{
//        mySerial.write( color_list[counter/10%6][j] );  
//      }
    }
  }
  //delay(cycle_delay);  //let em shine
  counter = (counter+1);
}