[GRLUG] Time Clocks and Software

[Bill Littlejohn]

>
> Would I even need a clock on the Arduino if it's tripping the relay
> whenever it gets a signal over ethernet? I am clueless about this, so
> maybe it needs a clock to even hold down the relay for 2 seconds?
>
>
You _could_ forgo the RTC and just send it commands over ethernet from a
schedule run via cron or something, but you originally mentioned having it
run autonomously, but being able to 'kick' the bell by sending a command
over ethernet; the ethernet shield for the arduino gets you ethernet
(obviously) and a SD card slot. So you could store the buzzer schedule file
on the SD card and be able to update it by simply taking it to a PC and
editing. That way it would still function when the network or command pc was
down.

The Arduino solution looks like the least expensive so far. Do you
> have any resource suggestions for getting me going in Arduinoville?
>
>
>
Many. Busy day though so give me a few to put together a decent list.

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