[time-nuts] M12+T Oncore
hmurray at megapathdsl.net
Thu Jul 2 23:41:40 UTC 2009
> Specifically it would provide regulated 5 and 3 volts, a MAX3232 chip
> for level translation, a buffered 1PPS output, and LEDs to indicate
> power and 1PPS heartbeat. Some or all the components would be SMDs.
> This could be an assembled board or a kit.
> If this looks promising, I would be interested in what other features
> would be desirable.
How wide is the PPS? If it's tiny (10 microseconds) some serial port setups
won't catch it. If so, a one-shot pulse stretcher would be handy.
Does the PPS signal stop ticking when it runs out of satellites? If so, I
think you can use the other one-shot in the package so that the LED is on
when the PPS is ticking and blinks when the PPS is off. and is off if there
is no power).
These are my opinions, not necessarily my employer's. I hate spam.
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