DeanCollins napisał(a):
hello, thanks for your input...
So will it be able to handle 100+ ports (divide by 8) approx 13 2408's? as
well as a couple of keypads/buzzers/lcd screens?
also how would i go about using a ibutton keyfob for user authorisation?
instead of using a key to reset/turn on/off the alarm i want to use a keyfox
with an ibutton in it. So it will just be touched to a reader then verified
U could use memory chips with keys or even simple iButtons with
thermometers, just checking the "unique ID" of any given 1-wire device.
Note: i have very good "low end" solution by having 8 usb RS<>USB
adapters (FTDI based) and any contemporary PC-mainboard.
BTW: having 100+ up ports yealds for some specialized microcontroler,
don't know if owfs is to big for ethernut/atmega128 but u could try at
http://www.ethernut.de and see, maybe there is ready soulution for your
idea.
kd,
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Krzysztof Drewicz
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