question: is it possible to add some blinkenlights to
that meter? i mean who else do you age your computer
without blinkenlights?

and while we are there does anybody have a 8 inch
semi-round green screen? you know: the kind that is
good for pong and stuff?

 -munir

> Subject: [TCLUG] Analog RAM meter Q
> Reply-To: tclug-list at mn-linux.org
> 
> If this needs to move off this list, just tell me
> where to put it.
> Any better suggestions are welcome, but I think I
> have a game plan.
> 
> I forget who was involved, but I have a question or
> two about the RAM
> meter thing, if we're going to try and build a
> circuit.
> 
> I started thinking about it and realized that
> depending on what we're
> trying to do, it might not be that useful.
> 
> First:  are we measuring used RAM?  Free RAM?  Swap?
>  what?
> 
> Second:  this is only going to be a crude indicator,
> probably, because we
> have to scale it onto the face of the meter.  Do you
> want it to go
> 0--1/2--full like a gas tank?  It's going to be
> possible, or maybe likely,
> that it just hangs out near the top of the gauge all
> the time, if Top is
> any indication (on my system.)
> 
> Third:  Whoever is doing things with drivers, the
> easiest thing might be
> to flip DTR on the serial port.  Can you write
> something that does that in
> a clocked way?  
> 
> If you call 10 cycles one "word", then just keep it
> high for one clock
> cycle per 10% of the reading you are trying to
> indicate, i.e., 100% would
> be always high, on 5 off 5 would be 50%, etc.  I
> think this wouldn't be
> too hard -- C or perl(?) can certainly do something
> every so many
> milliseconds.  I'm pretty sure serial port I/O is
> not difficult to get at.
> 
> Fourth:  Did someone find meters that they want to
> use?  I need to know
> the specifics of the meter.  (volts / amps / shunt
> resistance.)
> 
> Then, once we get that far, we can determine the
> clock freq and I can do
> the meter driver.
> 
> Cheers,
> Phil
> 
> -- 
> "To misattribute a quote is unforgivable."
> --Anonymous


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