[This topic reposted from the old forum]
In relation to the Atmel AT86RF212 used by the long range Freakduino, a poster from a different forum makes the comment:
“A look at an Atmel document which describes Atmel’s AVR2025 software package (that’s their 802.15.4 MAC stack), a sub-1GHz 802.15.4 radio on channel page 0 falls under the “MAC-2003″ space, is BPSK, and can do 20 kb/s @ -110dBm or 40 kb/s @ -108dBm. ” (that quotation is from here: http://cocoontech.com/forums/topic/2648 … /?p=215305)
So, it looks like the LR Freakduino could get an extra 2db of link budget with that approach, making the Long Range Freakduino even longer range. That would be a good thing, right?
How to do it then? As far as I can tell, the Chibiarduino code only supports BPSK at 40kbps, not 20kbps. Is that correct?
FreakLabs Open Source Wireless