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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@thomc
Very elegant way to do it!
I was recently researching using a cheap SDR dongle for decoding 433 and came across a tool which specifically does that with various protocol support. Example:
http://goughlui.com/2013/12/20/rtl-sdr-433-92mhz-askook-decoding-of-various-devices-with-rtl_433/
It also has a feature to analyse unknown protocols.
As an aside some people have used SDR with GNU Radio to process 433 into audio and use Audacity to view the waveform: http://www.kukk.org/blog/sdr/messing-with-433mhz-equipment/
Doesn't beat a couple of quids worth of components and a bit of JS in a web browser though!