I am now a little bit confused. Is ZigBee 802.15.4 or is ZigBee on top of802.15.4? I'll have to read that 802.15.4 spec throught.
What are the news about open source and embedded applications taking benefits from those standards?
Did anyone of you evaluate Chipcon hardware, the CC2420 chip? The next 2520 looks promising as that one will be even smaller in size and will require only 2 layers PCB (according to 2500 chip reference design).
I would have a huge project to start with (from scratch and specifications). I hope we already can play and enjoy the lower layers provided by chips like CC2420 or is this currently closed?
Today I feeded a project into sourceforge. I hope it won't be rejected due to licensing concerns...
Part of its abstract is following:
Since the 80s DCC (Digital Command Control for model railroad, see
ZigDCC project will allow the use of ZigBee to carry DCC signals between handhelds and DCC decoders. Many boxes from the 80s will be thrown out the way by ZigDCC, even the more silliest. This will improve performances and expand perspectives of model railroad gaming. ZigDCC will also drastically improve hardware interoperability. By many ways ZigDCC will ease DCC systems usage and lower aquisition costs of next generation DCC systems. Prototypes can be made available for mid 2006.
Must be open source / open hardware / open embedded hardware using the latest available technologies (must be performant and fit in small scales, initial target being most common HO 1/87 scale).
Must also integrate and cowork with existing DCC systems.
Any interests to feed in contributions? PICs, AVRs, ARMs knowledges and experiences welcome, newbies also :-)