Blindly Reverse Engineering a Wireless Protocol
Hackaday has brought to attention a document written by a Rory O’Hare which discusses the journey Rory took in trying a decode an unknown 433 MHz signal received from his SDR dongle.
If you are interested in manually decoding some unknown signals you may be interested in this write up as it discusses his entire journey including the failures he encountered along the way. Basically he records some packets using his SDR dongle, works out their bit patterns manually and then attempts to find correlations between the packets in an attempt to discover their structure. In the end his efforts are successful as he discovers that he is receiving a temperature sensor and is able to decode the temperature readings.
mmm. I am think it. If you use neural network, it can learn the patron and decode it fast!. It is a good experiment to do. If you need help tell my.
The Github repo linked to in this article no longer exists.
I have unknown signal which I need small help to decode it.
Details at : http://www.sigidwiki.com/wiki/Unidentified_Signal_at_2.4_GHz
Another related article where RTLSDR dongle has been used:
http://www.embeddedrelated.com/showarticle/620.php
There is a similar reverse engeenering here http://dangerousprototypes.com/forum/viewtopic.php?f=2&t=6499&hilit=433
If you like this type of thing take a look at ..
http://decodermusings.blogspot.co.uk/2013/04/gw-fsk.html
also ..
http://decodermusings.blogspot.co.uk/2013/05/gw-mmsi-encoding.html
plus ..
http://decodermusings.blogspot.co.uk/2013/06/gw-shore-station-mmsi-encoding.html
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