On 18 August 2011 10:41, Sevan / Venture37 venture37@gmail.com wrote:
On 18 August 2011 10:37, Sevan / Venture37 venture37@gmail.com wrote:
On 18 August 2011 10:30, Martin Ellis ellism88@gmail.com wrote:
I was trying to work out what the different version were. Is there an advantage in certain frequencies?
there are 3 variants, one for the US, one for europe & one global, based on permitted frequency range use, the global one cant do certain things if I remember right (its covered on the Ti wiki)
http://processors.wiki.ti.com/index.php/EZ430-Chronos?DCMP=Chronos&HQS=O...
Seems to just suggest that you might not get as good range with 433MHz due to it requiring a larger antenna. Also appears that you can software configure the 868 watch for 915 and vice-versa.
I ordered the 868MHz variant as this is the frequency used by the RFM12B modules that come with JeeNodes. I have one of these waiting to be assembled, and also a spare module to use with a Nanode, which is also waiting to be assembled... Hoping that they can be made to play if only via on-off keying and at low bitrates.
Cheers,
Andrew
PS. Amusing that someone commented on the wiki that it'd be nice it if had GPS. At under $50 be nice if it had an OMAP processor and booted Linux too!