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peer 2 peer with two low power devices

Other Parts Discussed in Thread: SIMPLICITI

hi all

i need to have a  scenario which can allow two low power devices to communicate.

up til now i thought of two options:

1. a router which communicates to an end device- this can be achieved by setting a coordinator, connecting a router to it, shutting down the coordinator and reconecting it as an end point.

2. becon mode- coordinator <-> end point.

1. for the first scenario:

-can the NWK exist without a coordinator?

-can i set the router to work on a duty cycle without changing the z- stack?
from z-stack developers guide: "A special mode of network operation, called “Cluster Tree”, allows Routers to operate on a periodic duty cycle and thus enables them to be battery-powered."

if not, how is the programing of the z- stack doen? can it be applied to the cc2480

2. the secound scenario:

-when in beacon mode is the coordinator in a low power mode? does he turns off when not beaconing?

-can the end devise be both in sleep mode and in beacon mode- sleep untill button presed, when pressed wait for a beacon and then transmit data?

-which microcontrolers support beacon mode?

thanks in advance for your help.

  • ZigBee is overkill for implementing a peer to peer network. And beacon mode is not an option in the TI ZigBee stack.

    A better option would probably be SimpliciTI. We have real-time clock software that runs at very low power on the MSP430 that could wake both devices at predetermined times to communicate.