Only thing is the old monitor would be be bigger and bulkier than most=20 scopes nowadays. Take up a lot of bench space, would it not? Make it work with an Android tablet, Olin. Mark Skeels Engineer Competition Electronics, Inc. TEL: 815-874-8001 FAX: 815-874-8181 www.competitionelectronics.com On 2/23/2011 1:16 PM, Olin Lathrop wrote: > doug metzler wrote: >> I agree with the display lag problem - it's disconcerting for the >> display to freeze while the USB channel is trying to re-fill the >> buffer when I change a setting. >> >> The USB control panel is an interesting idea but would require that >> you have a spot for the control panel on your bench. I like that I >> bring the scope to the circuit and not the other way around. >> >> An iPad app with a wireless connection to the device might be >> interesting, Imagine if you could use the 2-finger separate (like >> enlarging pictures/web pages) to change your vertical or horizontal >> resolution. If we ever get desktop touch screens then that could >> change everything. > This brings up a idea I've had in the back of my mind for a few years. > > I've been thinking about making a cheap but usable scope by getting rid o= f > the monitor and having a front panel that is all capacitive sense switche= s. > The front panel could be a circuit board with the right paint, maybe even > just the silkscreen layer on it. > > Instead of a monitor, it would have a SVGA output. Everybody has a old S= VGA > monitor or two lying around unused nowadays. These cheaply give you way > more pixels than even high end scopes do, and full color. No need for mo= re > than 1024 x 768 pixels. The top of the scope would be flat to make it ea= sy > to perch the monitor on. I'd also provide a convenience power socket on = the > back of the scope so the whole thing only needed a single power outlet. > > I'd have a few dedicated buttons (capsence areas, actually), and probably > two rows of soft button at the top of the board just below where the disp= lay > should be. The bottom portion of the display would always show the curre= nt > function of these soft buttons. > > If you want to get fancy, allow chaining multiple base units together to = get > more channels on one display. The units would know they are chained and > everything could still be controlled from the buttons only on the master. > For that matter, you could have separate add on units that had no buttons= at > all that are only slaves. > > Even if someone didn't have a old monitor they'd have to buy one, but 12" > SVGA compatible monitors are dirt cheap nowadays. The price would still = be > less than what it would cost to build in a display. > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .