[hackspacebristol] RF question
matt at mattvenn.net
Wed Feb 27 10:23:22 UTC 2013
any help would be appreciated, but I'm not about Thursday. You around any
On 27 February 2013 07:25, James Torbett <james at torbett.co.uk> wrote:
> Tricky as the silabs chip includes the uP so you can't sniff the i2c
> stream that sets it up. Might need a rather expensive oscilloscope to sniff
> the rf.
> Bring it thurs perhaps?
> On Feb 26, 2013 4:51 PM, "matthew venn" <matt at mattvenn.net> wrote:
>> Hi all,
>> I've got a radio question for you. I'm trying to get a feed from a GEO (
>> http://www.greenenergyoptions.co.uk/) ensemble energy monitor.
>> The energy monitors use this chip:
>> And on their website they specify 868Mhz:
>> http://www.greenenergyoptions.co.uk/what-we-do/products/comptable/ (see
>> the ensemble product)
>> They don't specify the modulation, but the SI chip supports one of FSK,
>> GFSK, and OOK.
>> I've setup an rfm22b radio (http://www.hoperf.com/rf/fsk/RFM22B.htm) and
>> have tried snooping at 868Mhz using all the above modulation modes.
>> I'm not picking anything up.
>> I've verified my radio is working (by pairing it with an identical radio
>> and sending message) and that the ensemble stuff is working (turn on and
>> off lamps etc).
>> I don't know much about radio, so perhaps what I'm trying to do isn't
>> Any ideas why I'm not seeing anything?
>> Matthew Venn
>> Hackspacebristol mailing list
>> Hackspacebristol at lists.aktivix.org
> Hackspacebristol mailing list
> Hackspacebristol at lists.aktivix.org
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