> I managed to de-cipher the packets sent by the Digistat into 9 hex pairs,
> and get a low cost micro and 433MHz ASK transmitter module to emulate these.
Ken, at the risk of asking a very stupid question - hardware hacking
is very new to me - how does one decipher said packets?
Obviously there is a hardware component and some software to take the
signal and break it down. If I were armed with my Arduino (which is on
order) where would I start to try and do this?
For context I've a few different commercially available energy meters
communicating with a master (over M-Bus) that deals with external
comms for AMR purposes.
What I'd like to get a better handle on is a) the information getting
passed around between the meters and the master and b) the contents of
the output from the master when queried by various bits of closed
Hopefully my question is on-topic?
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Very useful, ta.
There's a pretty in-depth series of blog posts looking at deciphering
433MHz (and other) wireless signals over on the Jee Labs blog. Most of
his blogging for April in fact.
See <http://news.jeelabs.org/2010/04/> for them, starting with the "OOK
plugs" post from April 12th and running through to the "(Not So) Home
Easy" post of April 23rd. You'll have to scroll down a fair bit, but it
was easier to post a link to the month's archive than pull out the dozen
or so blog posts about it.
The JeeNode boards that are mentioned in it are some he sells, but I
think they're roughly Arduino compatible, so the code should be fairly
portable to it.
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