//  Based on the Origanl  sample code of  www.elechouse.com   @brief   example of FMRX_MODULE
//  This radio can be pruchased at  www.elechouse.com
//  GBH  1/2/2014 Mod for "Ghost Box "  
    
#include <FMRX.h>
#include <Wire.h>

float channel;
void setup(void)
{
  
  Serial.begin(9600); // setup serial communications to the host
  i2c_init(); // Setup IC2 for use pins (A4 and A5) arduino uno 
  fmrx_read_reg(fmrx_reg_r); // Start FMRX 
  fmrx_set_volume(8);// Set Default start up Volume

  changing the value on the next line will increase or decrease the signal strength used to determine the radio has found a station


  fmrx_set_rssi(0); // This tells the radio what is a strong engough signal to stop on .. we use 0 -5 for better low signal responce
  fmrx_select_band(BAND_US);   //  select a band, parameter:  BAND_EU:       87-108MHz, Europe  BAND_US:       87-108MHz, USA  BAND_JP:       76-91MHz, JAPAN  BAND_JP_WIDE:  76-108MHz, JAPAN wide
  channel=fmrx_seek(SEEK_DOWN); // find a chanel to start on. 
}
/* commands are 1 increase volume 2 decrease volume 3 scan  up x to exit 4. scan down x to exit */
void loop(void)
{
  static int vol=8;
  if(Serial.available()>0){
    switch(Serial.read()){
      case '1': // Increase Volume
        if(vol < 0x0F){
          vol++;
        }
        fmrx_set_volume(vol);
        Serial.print("Volume+:");
        Serial.println(vol);
        Serial.print("\r\n");
        break;
        
      case '2': // decrease volume
        if(vol > 0){
          vol--;
        }
        fmrx_set_volume(vol);
        Serial.print("Volume-:");
        Serial.println(vol);
        Serial.print("\r\n");
        break;
        
        case '3': // Scan up Exit on 'x'
        do{        
        channel = fmrx_seek(SEEK_UP);
        Serial.print(channel);
        Serial.print("\r\n");
        delay(150); // change this amount to increase time stopped on a station 
        if(Serial.read()=='x'){break;} // Enter  'x' to exit scan up
         }
        while (1==1);
        break;

       case '4': // Scan Down Exit on 'x'
       do{       
        channel = fmrx_seek(SEEK_DOWN);
        Serial.print(channel);
        Serial.print("\r\n");
        delay(150); // change this amount to increase time stopped on a station 
        if(Serial.read()=='x'){break;} // Enter  'x' to exit scan up
        }
        while (1==1);
        break;
    }
  }
}