Jee Labs Talk

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1. dazzag
   

   I have an Oregon Scientific weather station with 2 433Mhz temperature + humidity sensors (possibly the OS-THGR810) and a UV sensor (OS-UVR128) from approx 4-5 years ago. I need to check part numbers.

   Has anyone used JeeNodes to obtain the data from these?

   Thanks

   Darren

   Posted 31/12/2009 12:24:25

2. jcw
   

   Probably not possible - JN radios recognize FSK, most simple weather modules send using OOK / ASK. See these links for more info: http://talk.jeelabs.net/topic/66 and http://news.jeelabs.org/2009/12/25/ook-reception-with-rfm12b/

   Also, for 433 MHz, you probably need a 17 cm antenna, and even then a 868/915 MHz RFM12B on a JeeNode may not have a very high sensitivity (i.e. range). A stand-alone cheap 433 receiver such as shown here would be better: http://news.jeelabs.org/2009/03/10/decoding-433-mhz-kaku-signals/ - and then the JN can continue to be used at the same time for 868 MHz comms.

   Would be interested to find the specs for Oregon protocol. I've got one such sensor here, but I never got around to recording the 433 MHz OOK pattern, let alone figure out the codes.

   Posted 31/12/2009 15:12:08

3. dazzag
   

   Thanks.... any ideas where I could get such a stand-alone 433 reciever?

   Posted 01/01/2010 14:43:35

4. dazzag
   

   This might prove useful in decoding Oregon Scientific protocols

   http://alyer.frihost.net/thrsensor.htm

   Posted 01/01/2010 14:51:14

5. zzdomi
   

   I guess this topic is a little bit out of date, but I'd like to tell you I found how to decode V2 oregon protocol. The OOK decoder described previouly is only able to decode V3 oregon protocol.

   -Each message is sent twice. -The coding is manchester. -The preamble has 32 long pulses and each bit is sent twice but with the opposite polarity.

   If you are interrested in using it, I'll post the decoder class source.

   Posted 17/09/2010 06:36:25

6. jcw
   

   > If you are interrested in using it, I'll post the decoder class source.

   Very, thanks! Would be a great candidate for the new soon-to-be-made-public wiki, in fact.

   Posted 17/09/2010 10:08:08

7. dazzag
   

   Hi, With the new OOK 433 Plug is this now something that could be achieved more easily.

   Also did you receive the decoder class source code form zzdomi?

   Thanks

   Posted 03/02/2011 12:39:25

8. panosnl
   

   zzdomi already posted the a new decoder class already that is decoding V2 and V3. It works with the OOK plug (short range only until I replace it with a better receiver)

   look at: http://jeelabs.net/projects/cafe/wiki/DecodingtheOregonScientificV2protocol

   You still need to get the temperature and other parameters out of the decoded bytes. The article gives some hints on where to find this info and I succeeded to get the T and Hum for my THGN sensors.

   [ookDecoder]

   OSV2 1A2D10FB301900063ED9 THGN Temp: 19.30 C Hum: 60 %

   OSV2 1A2D10FB3019900546F4 THGN Temp: 19.30 C Hum: 59 %

   OSV2 1A2D10FB401990054796 THGN Temp: 19.40 C Hum: 59 %

   Posted 24/02/2011 13:22:34