Hello all. Is there a programmable 802.15.4 module that I can put an open-source RF stack on? For example, is it possible to reprogram a Zigbit with Chibi? What's the easiest way to put Chibi into a component on my own PCB?

Hi,

I've been working with meshnetics modules.
These modules are just an Atmega128 + an AT86RF2xx


IMHO, IF you have the schematic of this module, you would be able to implement the chibi stack via the JTAG interface.

If you can't find the schematic (I never did but I didn't search for it a long time), you can find it by reverse engineering.


It's certainly quite simple, there's only one SPI interface. So MISO, MOSI and CLK are known, you'll have to which IO of the µc the other signals of the AT86RF2xx are connected.

Hope this will help you.

For an FCC'd module, Zigbit might be your best solution. As George mentioned, you just use a JTAG debugger to flash the chip. Actually, the FCC certification would be nullified by changing the software though. Usually for RF modules, you'd have to specify the operating power of the module because some modules will only pass at lower power settings. If you want to sell an FCC certified device, you'll eventually have to re-test with the complete system.