$30 adds an external antenna and battery charging circuitry.
ISM bands, mesh networking. The chip they are using do 1200bps and 2400bps at low power, but the data sheets talk about 600kbps capabilities of the modem. I'd plan on the 1200 or 2400 if you are thinking 1km. Look to IEEE 802.15.4-2003 (Low Rate WPAN) for more information. (TI CC1200, or currently TI CC1101).
They are aiming for strong cryptography. Keys are kept in a dedicated crypto IC. (Atmel ATSHA204)
Shields planned for RC servers, LAN, and bluetooth.
This could be my new favorite Arduino class board.
The plan is for it to be my favorite, and I'm designing it, so I hope so!
I'm trying to design the system I've needed for years, because the problems I've had building robots generalize to nearly all the problems that Arduino users have.
Arduino due is an ARM cortex m3 (microcontroller ARM). ATmega's aren't particularly known for their power consumption, you have always been able to get lower power ARMs.
$30 adds an external antenna and battery charging circuitry.
ISM bands, mesh networking. The chip they are using do 1200bps and 2400bps at low power, but the data sheets talk about 600kbps capabilities of the modem. I'd plan on the 1200 or 2400 if you are thinking 1km. Look to IEEE 802.15.4-2003 (Low Rate WPAN) for more information. (TI CC1200, or currently TI CC1101).
They are aiming for strong cryptography. Keys are kept in a dedicated crypto IC. (Atmel ATSHA204)
Shields planned for RC servers, LAN, and bluetooth.
This could be my new favorite Arduino class board.