BS2 Pulsin to read Domia lite protocol data

Cyb · 2011-06-21 03:40

Hi,
I have a BS2 and a 433mhz radio module. My goal is to read some Domia lite data (Home automation protocol) to activate an output.
According to this link http://home2.btconnect.com/totalg/byebye/domialitespecification1.0.pdf at page 5, would use 2 Pulsin consecutively (1 for rising edge and the other for low signal) work ?
I have tried but cannot get it to work. Is the bp2 pulsin command resolution enough ?

Thank you,

sam_sam_sam · 2011-06-21 05:37

Cyb

Welcome to the Parallax forum

Can you post the whole code that you try-ed so we can try to help you

Cyb · 2011-06-21 10:31

Hi sam_sam_sam,
Here are some more details of what I'm trying to do.
In the image is the data I am trying to acquire with the BS2.It looks +- OK according to the Domia Lite specifications (http://home2.btconnect.com/totalg/byebye/domialitespecification1.0.pdf)
In the PIC, I though I could just mesure the high and low time of the signal like this :

Main:
  PULSIN Pulse, 1, time                 ' measure positive pulse
  PULSIN Pulse, 0, time2                 ' measure negative pulse

  DEBUG CR,"high : ",DEC time*2, " us  "             ' display microseconds
  DEBUG CR,"low  : ",DEC time2*2, " us  "             ' display microseconds
  DEBUG CR,"diff  : ",DEC ((time2*2) + (time*2)), " us  "             ' display microseconds

  GOTO Main
  END

But I don't understand the results I get, maybe it's not possible to measure such signal ?

Main:
  PULSIN Pulse, 1, time                 ' measure positive pulse
  PULSIN Pulse, 0, time2                 ' measure positive pulse

  DEBUG CR,"high : ",DEC time*2, " us  "             ' display microseconds
  DEBUG CR,"low  : ",DEC time2*2, " us  "             ' display microseconds
  DEBUG CR,"diff  : ",DEC ((time2*2) + (time*2)), " us  "             ' display microseconds

  GOTO Main
  END

Thank you,

Cyb

sam_sam_sam · 2011-06-21 12:26

You have to what are the command do and what they are for

and in the data sheet that you have here it dose not tell what they do

PAUSE 50
LOW CS                                                                       ' Enable ADC
SHIFTOUT DataIn, Clock, MSBFIRST,[B] [%10111101][/B]         ' Select CH0, Single-Ended [%1XXX1101]
SHIFTIN DataOut, Clock, MSBPOST, [KLN\12]                 ' Read ADC
HIGH CS                                                                         ' Disable ADC

Where you see this [%10111101]

In the photo that I posted you where all the bits you are going to have to do something like this you self to talk to this board

Cyb · 2011-06-21 12:39

sam_sam_sam,
I know what they do, I just need to decode the data.
I will decode the data, get a device adress, if the adress is the one of my card; get the command (ON or OFF) and then activate the output...

Thank you,

sam_sam_sam · 2011-06-21 12:41

Try the example that I posted and see if this will work

This will the amount of bits that to read [KLN\12]

BS2 Pulsin to read Domia lite protocol data

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