// Yotson
#define COMANDBUFFERSIZE 5
#define A 3
#define B 5
#define C 6
#define D 9
#define E 10
const int F = 11; // Because of the F() function built into Arduino 1.0
//#define X 3,5,6,9,10,11

//char commandbuffer[COMANDBUFFERSIZE];
//int index=0;

char value[4];
uint8_t avalue=0;
uint8_t index=0;
char command=0;

void setup() {

  pinMode(A, OUTPUT);
  pinMode(B, OUTPUT);
  pinMode(C, OUTPUT);
  pinMode(D, OUTPUT);
  pinMode(E, OUTPUT);
  pinMode(F, OUTPUT);

  analogWrite(A, 170);
  analogWrite(B, 170);
  analogWrite(C, 170);
  analogWrite(D, 170);
  analogWrite(E, 170);
  analogWrite(F, 170);

  value[3] = 0;

  Serial.begin(9600);
  Serial.println("Setup done. All fans at 30%");
}


void loop() {
//  command = Serial.read();
//  if(command < 'a') { continue; }

//Serial.println("looping"); //debug
while(index < 4){

//  command = Serial.read(); //debug

//  Serial.println("index < 3");
  if(Serial.available())
  {
//    Serial.println("Serial.available"); //debug
    if(index==0){ // index is 0 so we are hopefully recieving a,b,c....
      command = Serial.read();
//      Serial.println("index==0"); //debug

      if(command < 'a') {
        continue;
      }



    }
    else{ // index is more then 0, we should be recieving the value
      value[index - 1] = Serial.read();
//      Serial.println("index!=0"); //debug
    }
    index++;
//    Serial.println("index++"); //debug
  }}

avalue = atoi(value); // convert from ascii to int
//Serial.println("atoi"); //debug

switch (command){
  case 'a':
    analogWrite(A, avalue);
    Serial.print("A is at ");
    Serial.println(avalue);
    break;
  case 'b':
    analogWrite(B, avalue);
    Serial.print("B is at ");
    Serial.println(avalue);
    break;
  case 'c':
    analogWrite(C, avalue);
    Serial.print("C is at ");
    Serial.println(avalue);
    break;
  case 'd':
    analogWrite(D, avalue);
    Serial.print("D is at ");
    Serial.println(avalue);
    break;
  case 'e':
    analogWrite(E, avalue);
    Serial.print("E is at ");
    Serial.println(avalue);
    break;
  case 'f':
    analogWrite(F, avalue);
    Serial.print("F is at ");
    Serial.println(avalue);
    break;
}
index=0;
//Serial.println("index=0"); //debug
}