I need help with the series 2 of the xBee. Dont go telling me to buy series one because its better than 2. I already have them and thats what I am using.
Anyway, I used them point to point once before with ZNET2.5 firmware. if i used any other firmware, it just would never link. if i reprogrammed and setup ZNET2.5 about 100000 times it would finally link up. No I/O control but hey at least the UART worked. who cares.
Anyway, I am trying to setup a point to multipoint, in otherwords, one xBee at the PC, sending the signal to multiple receivers. Any tutorials how to set this up on Series 2? thanks.
Series 2 use Ember’s chipset. Series 1 uses Freescale’s chipset.
Ember’s chipset is intended for mesh networks (ZigBee).
Series 1 can use DigiMesh (better/simpler than ZigBee for simple applications).
Series 1 can also use basic 802.15.4 mode, no complex network layer.
The last paragraph in your not-so-polite post says you want a star network (topology) rather than a mesh.
If all nodes can RF-link to the central node (distance and obstructions permitting), then all nodes can simply set the destination MAC address or network layer address to that of the central node. The central node could transmit to the broadcast address (FFFF) so that all in-range, non-sleeping nodes would receive that packet. But there’s no receipt-assured ACK as would be the case if the central node did a unicast (not broadcast) to one or more nodes.
So there’s some design work needed, and some learning to do, before hacking the code.
Well, i messed with it a little bit and performed your suggestion. but broadcast mode the packets are MUCH slower…, further research provided me with that 3 packets every 4 seconds limitation in broadcast mode.
I just dont know the xBee well enough to make edumicated decisions. Please excuse me if I have offended anyone in my previous post, i meant no disrespect.