//#######################################################################################################
//##                    This Plugin is only for use with the RFLink software package                   ##
//##                                      Plugin-063 Oregon PIR/LED/ALARM                              ##
//#######################################################################################################
/*********************************************************************************************\
 * This plugin provides support for Oregon PIR/LED/ALARM devices
 *
 * Author             : StuntTeam
 * Support            : http://sourceforge.net/projects/rflink/
 * License            : This code is free for use in any open source project when this header is included.
 *                      Usage of any parts of this code in a commercial application is prohibited!
 *********************************************************************************************
 * Technical data:
 * Devices send 50/52 pulses using typical Oregon bit encoding
 *
 * Sample:
 * 570,390,570,360,570,360,540,360,540,360,570,360,570,330,570,330,570,330,570,330,570,330,570,360,540,360,540,360,1110,330,570,900,1110,900,540,330,570,330,1110,900,1110,360,540,360,540,900,1110,330,570,330,570,1620
 * 00101110 10001000 = 2E88
 \*********************************************************************************************/
#define OREGON_PLA_PULSECOUNT 52

#ifdef PLUGIN_063
boolean Plugin_063(byte function, char *string) {
		//Serial.println("P003");
      if (RawSignal.Pulses[0] != 63) return false;  // Only accept RF packets converted by plugin 1
      //Serial.println("P004");
      RawSignal.Pulses[0]=0;
      if ((RawSignal.Number < OREGON_PLA_PULSECOUNT-2) || (RawSignal.Number > OREGON_PLA_PULSECOUNT) ) return false;
      unsigned long bitstream=0L;
      //==================================================================================
      //Serial.println("P005");
      byte bits=0;
      byte rfbit = 1;
      
      if ( (RawSignal.Number < 50) || (RawSignal.Number > 52)) return false;
      // Check preamble
      for(byte x=1;x<28;x=x+2){
         if (RawSignal.Pulses[x]*RawSignal.Multiply > 600) return false;
         if (RawSignal.Pulses[x+1]*RawSignal.Multiply > 600) return false;
      }         
      // Check bits
      for(byte x=29;x<=RawSignal.Number;x++){
         if (RawSignal.Pulses[x]*RawSignal.Multiply > 600) { // toggle bit value
            if (RawSignal.Pulses[x]*RawSignal.Multiply > 1600) break; // done..
            rfbit = (~rfbit)&1;
            bitstream = (bitstream << 1) | rfbit;   
            if (RawSignal.Pulses[x+1]*RawSignal.Multiply < 600) x++;
         } else {
            bitstream = (bitstream << 1) | rfbit;            // short pulse keep bit value
            if (RawSignal.Pulses[x+1]*RawSignal.Multiply < 600) x++;
         }
      }
      //==================================================================================
      // Prevent repeating signals from showing up
      //==================================================================================
      if( (SignalHash!=SignalHashPrevious) || (RepeatingTimer+2000<millis()) ){ 
         // not seen the RF packet recently
         if (bitstream == 0) return false;
      } else {
         // already seen the RF packet recently
         return true;
      }       
      //==================================================================================
      // calculate sensor and channel
      bitstream=(bitstream)>>4;
      bits=(bitstream)&0x3;
      bits=bits+0x30;                                   // signal 3 for plugin 63
      //==================================================================================
      // Output
      // ----------------------------------
      sprintf(pbuffer, "20;%02X;", PKSequenceNumber++); // Node and packet number 
      Serial.print( pbuffer );
      // ----------------------------------
      Serial.print(F("X10;"));                         // Label
      sprintf(pbuffer, "ID=%06lx;",(bitstream)&0xffffff) ; // ID + channel number
      Serial.print( pbuffer );
      sprintf(pbuffer, "SWITCH=%02x;", bits);          // channel number
      Serial.print( pbuffer );
      Serial.print(F("CMD=ON;"));                      // this device reports movement only
      Serial.println();
      //==================================================================================
      RawSignal.Repeats=true;                       // suppress repeats of the same RF packet
      RawSignal.Number=0;
      return true;
}
#endif // Plugin_063