Re: Rabbit and DHCP

["Patrick Lidstone <patrick@xxxxxxx>" <patrick@xxxxxxx>]

> I'm actually trying to think a head a little... Last night (well
early am this morning
> I was doing some browsing and came across an ethernet temperature
monitor.
> They wanted something like =A3260 for it then =A340 for the probes. I =
reckoned even if
> I used a rabbit, a basic stamp and a ds1620 I'd still get in at
well under a third of their
> total cost. The intention was to work out how to hang the stamp and rabbit together (I know
> a pic would make things even cheaper but I have very little
experience of them) Once I'd
> done that it would just be a case of defining the ip in the dhcp
server, adding a dns entry
> eg. livingroom.temperature.mydomain.com and then plugging it
in...It would mean that I
> could just compile the code to a .bin file and then just build the units and download the code.

This is similar to what I have working on the bench today...

I have a PIC with temperature, humidity, light, sound and (sub-cm)
movement with a serial xAP interface -- very low cost, low component
count -- one per room is the aim. Multiple instances of this PIC
board can then be interfaced to the rabbit PCB, which also supports
IR send/receive and provides a bridge to xAP over TCP/IP and cat5
plus local web server. These components all work on a distributed
basic, so that if one or more components fail, the rest continue to
operate as best they can, without (necessarily) having to rely on a
single central controller.

Patrick

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