Reliable wireless data transfer

[dhouston]

So if I wanted to send the value from two 8-pin dip switches I could alter the code to something like
SW1 var byte
SW2 var byte

SW1 =RF[0]
SW2 =RF[2]
Am I correct ?

I think you want it the other way around...

RF[0]=SW1
RF[1]=~RF[0]
RF[2]=SW2
RF[3]=~RF[2]

[quote'Dennis;81044]
And since this is a rather well established protocol there should be no need for things like holtek or motorola encoder decoder pairs ..not so ?[/quote]There's no need for additional encoding.

Is there any chance of a code snippit to add a 3rd byte of data ?

'-----PIC12F629 using MPASM-----
' Sends 2 bytes + their bitwise complements using a variation of the NEC IR protocol
' repeats every 15 seconds
                     
@ __config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_OFF & _CP_OFF
 
RF 	VAR	byte[6]
Copies 	VAR	byte			'RF copies 
c	VAR	byte			'loop index (RF copies)
b	VAR	byte			'loop index (RF[b])
i	VAR	byte			'bit index
wb	VAR	byte                    'work byte

        CMCON = 7	
        Copies = 4       
        'Put data in RF[0],RF[2] & RF[4] & complement in RF[1],RF[3] &RF[5]
SendRF:	RF[0]=80:RF[1]=~RF[0]:RF[2]=66:RF[3]=~RF[2]:RF[4]=33:RF[5]=~RF[4]
	Low GPIO.2
	For c=1 To Copies
	  PulsOut GPIO.2, 880           '8.8mS lead-in pulse
          PauseUs 4400                  '4.4mS space
	  For b=0 To 5
            wb=RF[b]
	    For i=0 To 7                'LSB first
	      PulsOut GPIO.2, 50        '0.5mS pulse
	      If wb.0=1 Then
	        PauseUs 1500            '1.5mS space 
	      Else
		PauseUs 500             '0.5mS space
	      EndIf 
	      wb=wb>>1
	    Next
	  Next
	  PulsOut GPIO.2, 50            '0.5mS pulse
	  Pause 40:                     '40mS GAP
	Next
	Pause 15000                     '15 SEC DELAY
	GoTo SendRF
	
	End

I would not try to go beyond 48 bits.