Nice idea mtx512... but having 2 chips instead of a single, (eg jeenode = RF + ATMega) will consume way more power, am i right ?

Anyway, 868Mhz ain't a bad solution too, as it may be less used in standard household devices.
Stupid question: anyone has heard of "health studies" about 433, 868 & 2416Mhz bands ?
Which is the least ugly one ?

deajan wrote:


I've seen a number of boards containing a CC1101 + MCU that are powered by a Coin Cell battery. So I don't see this as a big problem. It all depend on the how much time you expect to wake up for TX/RX. You should also look at the STM32 discovery boards these seem to be good value for what they offer for MCU option. I'm also interested in the CC430, the only board I've found is by Olimex.

On the topic of other MCU&RF combo's @Cisecoplc ask this in twitter the other day



twitter.com/#!/Cisecoplc/status/195577446790213634

You should expect a juicy anouncment from us within 2 weeks

It's not the Arm based device I was eluding to on Twitter, this is perhaps 5 months away

I thought CC1110 was a MCU + RF combo already, so i thought XRF was a MCU RF combo too.
Am i right ?

Waiting for the (juicy) announcment, as my project plays with ethernet access right now, i'm not in hurry.

The CC1110 is an 8051 micro, AES co-pro and CC1100 in the same package, it's physically smaller but this doesnt mean its any lower in power than if you had all 3 separately. The solution is though the best SOC on the market by far at it's price/size point. The CC1111 has no equal anywhere. Both are good at low power IF you are willing to code for low power (keep packets small) systems like 802.15.4, 6lowpan and zigbee have far larger packets so are "on the air" much more so will always use more power.