#include <NewSoftSerial.h>


NewSoftSerial FAT(6, 7);

int U = 0x55;
int ACK = 0x06;
int V = 0x56;
int com = 0;
int i;
int c;
boolean first = 1;

void try_connect()
{
  Serial.println("reseting...");
  digitalWrite(3, LOW);  
  delay(100);                 
  digitalWrite(3, HIGH);
  delay(700);  
  Serial.println("trying...");
  while (c != ACK && i < 500)
  {
    FAT.print(U, BYTE);
    c  = FAT.read();
    Serial.println(c);
    ++i;
  }
  i=0;
  if (c == ACK)
    Serial.println("connected");
  else
    Serial.println("connect failed :(");
  first = 1;
  
  }

void get_status()
{
  c = 0;
  i = 0;
  while (c != 0x03 && i < 10)
  {
    FAT.print(V, BYTE);
    c  = FAT.read();
    Serial.println(c);
    ++i;
  }
  if (c == 0x03)///goldelox firmware
      Serial.println("connection good");
  else
      Serial.println("no connection");
  first = 1;
}

void write_string(char chars, int n)
{
  
  
}

void setup()
{
  FAT.begin(38400);
  Serial.begin(57600);
  pinMode(3, OUTPUT);
}

void loop()
{

com = Serial.read();
if (first == 1)
{
  Serial.println("command...");
  first = 0;
}
if (com == 115)///com = s
  first = 1;

if (com == 108)///com = l
get_status();

if (com == 99)//com = c
try_connect();
}