Don W. Carr wrote:
> For me, the value in zigbee/802.15.4 is that it does the encryption,
> routing, etc. For me, a bare radio would be a lot of extra work.
All of the ZigBee chip radios that I've looked at have the encryption
AES-128 built in, and it is good. But the standard key management is not
good. Maybe they will fix it in ZigBee 1.3
> Correct me if I am wrong, but it seems that the Maxstream product has
> a radio, serial interface, various on-board I/O, and the zigbee part
> baked in, all in about 1x1 inch part.
As is the Ember 260. Quad 48, under an inch on the side.
> Thus, you could use the Maxtream product to
> export the analog values and discrete values from the TS-7400.
However, with a TS-7xxx, you could use the SPI on any of the ZigBee
products to handle the IO, and the TS-7xxx has far more CPU power than
is needed.
--
Pat Farrell
http://www.pfarrell.com/
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