I was looking for a little but of advice for a project I'm currently playing with:
I recently broke the screen on my Maxkon Weather Station (http://www.crazysales.com.au/maxkon-wireless-touch-screen-weather-station-thermometer-w-pc-software.html
). I'd seen a few other Arduino projects that sniff the data coming from weather stations, but none for my specific model:http://www.practicalarduino.com/projects/weather-station-receiverhttp://kayno.net/2010/01/18/arduino-based-thermorbios-weather-station-receiver-sketch/http://rayshobby.net/?p=3381http://davehouston.net/learn.htm
I thought I'd try the above sketches just in case my weather station used the same protocols as the Thermor/La Cosse ones; As expected, I had no luck.
I decided to look a little deeper, and pieced together this circuit to capture transmissions with my computer's soundcard:
After inspecting the recording with Audacity I've run into a problem. I can see the section where the station transmits its signal, but can't see any meaningful data in that section of the recording.
I've attached a sample to this post.
It contains 3 transmissions:
1) [@0.3sec] The weather station I want to receive data from (transmits every 48sec).
2) [@1.25sec] Some other random device that transmits every 60sec.
3) [@2.2sec] Remote for a RF toggles power board that I triggered myself.
I included the other two transmissions as they both clearly have data in their transmissions.
So I'm kind of stuck here. I'm not really a hardware guy and don't have much experience with RF communication; I was thinking maybe it's got something to do with FSK/ASK/OOK. Like transmissions 2 & 3 are using ASK and the weather station is using FSK and that's why i can't see any data?
Again, I'm rather unfamiliar with RF so any suggestions or pointers in the right direction would be greatly appreciated.
Let me know if there's any more info that would help.
EDIT: Sorry, I wasn't aware you had such an issue with filehosting.org.
I didn't notice the option to attach files to the post the first time 'round, but have done so now.