[Arm-netbook] RGB/TTL interface

[Christopher Havel]

That's not RGB/TTL... that's parallel 8-bit. Different ball game. RGB/TTL
is either 24-bit (8 bits per color) or 16 bit (6 bits red / 6 bits green /
4 bits blue -- blue is more intense to the human eye so it only *needs*
four bits vs six for another color). The thing you're talking about... that
gets talked to more like a character LCD than anything else. You know the
display on those old HP laser printers you used in grade school? The ones
that could *only* display text, and had a dedicated spot for each
character...? *That's* a character LCD. *That's* the kind of interface
you're looking at here.

Dude, if all you're driving is that kinda thing... use an Arduino. If you
absolutely need Web connectivity (or if you need a little number-crunching
ability but not a lot), use an ESP8266. On that note -- a friend of mine
has found a way to turn off an ESP8266's WiFi side if you don't need it. (Info
here.
<http://www.hackster.io/rayburne/esp8266-turn-off-wifi-reduce-current-big-time-1df8ae>)
If you somehow need something that's more than a fractional-horsepower
driver for it ;) like if you're building some kinda fancy pants Johnny Five
robot... throw a RasPi at it.

Here, this might provide some inspiration --> http://johan.kanflo.com/
the-commadorable-64/
Despite the name, it's a daughterboard for a display like yours, that
integrates an ESP8266 and driver circuitry. You'd have to buy the parts and
solder it together -- and it's almost all surface mount stuff, mind you,
which is a real pain in the tail... but it's worth it from what I can see
here.

EOMA68 is *way* overpowered for any application using that kind of display.
EOMA68 is on the level of a Dell desktop, or at least an older ASUS netbook.

On Sun, Aug 28, 2016 at 2:01 PM, Louis Pearson <desttinghimgame at gmail.com>
wrote:

> Thanks for ask these replies! I'm pretty new to displays do this has been
> very informative. For the project in working on, I'll be using a smaller
> screen, maybe with a touch screen. Something like this:
>
> http://m.ebay.com/itm/161863547262?_trkparms=aid=
> 222007&algo=SIC.MBE&ao=1&asc=20150831081539&need=
> 62b51881f4054df6a178d0b1ebe1038d&pid=100518&rk=4&rkt=25&sd=
> 262136737363&_trksid=p2349624.c100518.m4111&_mwBanner=1
>
> According to the page it accepts an 8-bit signal. From the looks of it,
> this would be able to directly use the RGB/TTL signal.
>
> Another question I have is about SPI based displays. There seems to be a
> lot in this size range. Would those be able to display hardware accelerated
> video? Is that even a concern with this small of a display?
>
> On Sun, Aug 28, 2016, 12:02 Christopher Havel <laserhawk64 at gmail.com>
> wrote:
>
>> Well, then. I have been corrected.
>>
>> Fun fact: all you need to hook an eDP display up to any computer with a
>> DisplayPort output -- is a cable that adapts the connectors to each other.
>> Someone on Hackaday did that a year or two ago. I thought it was neat then
>> and I still do... don't think I bookmarked it tho.
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