For my first RF project, I’m attempting to capture and decode 433 MHz RF signals received from a remote Thermo-Hygrometer sensor in order to perform some home automation at various temperature and humidity levels. This is the Thermo-Hygrometer that I am using: http://www.ambientweather.com/amws08x2kit.html

I’m able to capture the RF signals in Audacity using a setup similar to this one: http://davehouston.net/learn.htm

I have attempted to decode the signals with NRZ and Manchester coding then searching the results for the BCD and binary representation of the decimal temperature/humidity, in various bit and byte endianness, but have not been successful.

I would like to know:

Is there anything I am missing? Am I using the correct decoding? Any suggestions or next steps?

Signal Screen Captures:

18.6 C 36%RH https://dl.dropboxusercontent.com/u/54300346/WS-08RF/RF2.png

000000000011100101001100000100000000101000101011000000000000011100101001100000100000000101000101011000000000000011100101001100000100000000101000101011000

18.6 C 36%RH https://dl.dropboxusercontent.com/u/54300346/WS-08RF/RF3.png

000000000011100101001100000100000000101000101011000000000000011100101001100000100000000101000101011000000000000011100101001100000100000000101000101011000

18.7 C 44%RH https://dl.dropboxusercontent.com/u/54300346/WS-08RF/RF6.png

000000000011100101001100000100010000001010000011000000000000001110010100110000010001000000101000001100000001000000111001110011000001000100000011100111110000

19.2 C 43%RH https://dl.dropboxusercontent.com/u/54300346/WS-08RF/RF7.png

000000000011100101001100000100011100110000010100000000000000111001010011000001000111001100000101000000000000001110010100110000010001110011000001010000

19.3 C 38%RH https://dl.dropboxusercontent.com/u/54300346/WS-08RF/RF8.png

000000000011100101001100000100010100010000100011000000000000011100101001100000100010100010000100011000000000000011100101001100000100010100010000100011000

Signal pattern repeated 3 times: https://dl.dropboxusercontent.com/u/54300346/WS-08RF/Pattern.PNG

RF Signal Width Distribution Graph: I used this to determine what should be considered a long pulse and a short pulse https://dl.dropboxusercontent.com/u/54300346/WS-08RF/Signal_Width_Distribution.png

Thank you in advance for any assistance you can provide!