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 ===== -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GAT GIT dpu- s:- a19 C++ UL P+ L+(++) E--- W+ N+ w(--) K? O-- M- V- PS+ PE-(--) Y-- PGP-(---) t 5+++ X R tv-- b+++ D++ DI++ G e+ h+() r- y+ UF++ ------END GEEK CODE BLOCK------ __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/