|
|
Dithering to produce grayscale when the total resolution is 128*64 sounds somewhat limited in my ears 
This kind of display is fair enough for embedded devices (which, I understand, is exactly what you are making) for simple text messages, and very simple graphic indications. To me, a 'binary' (no grayscale) (max) 16*8 chars text display the size of your thumbnail is not a 'monitor'. My microwave, or my baking oven, doesn't have a 'monitor', but a display. (I do notice, however, that the term 'monitor' was introduced by Slow Eddie, not by you!)
Another side is that if you buy something sold as an 'Oled LCD LED' display, several spelling and grammatical errors, 'ar duino' referred to several times, as well as du-pont, inconsistent dimension data, quite meaningless disclaimer about US power plugs, and why is a 40-pin flat cable included with a device that provides 4 control lines? ... then you know approximately what you will get. It is not quite at the same level as buying components from an internationally renowned manufacturer with a strong support department.
It still might be a good buy, considering the price, but I would always check price and functionality against what is offered on Mouser.com. You'll find a quite large selection of displays in this class, and the web interface provides a filtering mechanism that is at least tolerable. Usually, a product sheet link is provided. Mouser is primarily aimed at professional customers buying lots of hundreds or thousands, so if you order one component at a time, P&H may be excessive. But usually, you can buy one at a time (with the obvious exception of e.g. products delivered on a reel - you can buy one reel at a time, but not having a single component cut from a reel).
I'd recommend checking Mouser if you are in search of components. Taking a look at the web site costs nothing (except your time).
|
|
|
|
|
I wasn't endorsing that purchase - it was merely the first link I found that displayed the device prominently and had an option to buy.
The dithering is primarily so you can do things like load JPEGs onto the display, which may even be good for an IoT gadget because it means you can put the logo on the screen, but yes it is limited.
I should add, I'm familiar with mouser, but i tend to use digi-key more just because i have a client who prefers them.
To err is human. Fortune favors the monsters.
modified 13-Mar-22 18:02pm.
|
|
|
|
|
Found 4 words that use 20 different letters. Seems to make much easier.
I’m not posting them as to not ruin your fun.
"Time flies like an arrow. Fruit flies like a banana."
|
|
|
|
|
If you switch hard mode on, this trick may not work.
"It is easy to decipher extraterrestrial signals after deciphering Javascript and VB6 themselves.", ISanti[ ^]
|
|
|
|
|
Thank you !!!!
"Time flies like an arrow. Fruit flies like a banana."
|
|
|
|
|
Just for the fun of it, I always start with "quack".
Money makes the world go round ... but documentation moves the money.
|
|
|
|
|
SWF - it's not just for the web anymore!
Quite some time ago I wrote a little SWF displayer in VB6, but that was I don't know how long ago - dinosaurs.
However, more recently digging through Fallout 4 (released in 2015 or so) I noticed that it has SWF files in its game files for doing small animations.
It's actually a pretty great little format for that, as long as you don't use the gold-plated features adobe put in it.
Has anyone else seen SWF files in the wild in the last decade or so?
I'm kind of wondering if it might be worth it to make a viewer for IoT to run simple animations.
To err is human. Fortune favors the monsters.
|
|
|
|
|
|
I never studied the file format, and can't tell how well (or bad) designed it was.
Independent of its technical merits, it did spur a great wave of animation art in a style of its own, one which I enjoyed a lot. Too late did I realize that the format was dying, so I managed to save only a small handful of them.
There were some instruction/pedagogical ones, too, and I was lucky to save a couple of the best ones. Like this interactive historical map of the Middle East, showing how various powers have washed back and forth over that region, effectively nulling any claim of 'Historically, this is our land!' (any such claim serves only to show that you do not know history).
Another interactive one shows takes you through the full range of dimensions, starting with the entire observable universe at one end of the scale, strings at the other end. I never realized how immensely small strings are until 'universe.swf' showed me the vast void ranging from quarks to strings!
Having seen so much funny, grotesque, and great instructional .swf movies, I think it is a pity that it has disappeared more or less completely. I have seen a few of the products ported to other technologies - but usually as a pure playback, without the interactive functionality. Often the port is done in very low quality.
Maybe we have equally good replacement technologies today. Apparently, they are far less accessible to the creative minds that made all those great swfs. We certainly do not have a flow of new productions comparable to what we had when swf was at its peak. I sort of miss it.
|
|
|
|
|
I wasn't thinking anything so ambitious as an interactive implementation. I was thinking just enough to do some basic animation. This is IoT after all that I'm targeting. But that *would* be cool. It's just probably not feasible on these devices. Then again, they can sort of run python so who knows?
To err is human. Fortune favors the monsters.
|
|
|
|
|
SVG animations seem to be very popular nowadays ...
|
|
|
|
|
SVG is super complicated though. I was going to make a code generator to convert SVG paths into something my GFX library could use, but the spec is ridiculous.
To err is human. Fortune favors the monsters.
|
|
|
|
|
When I looked at SVG, it reminded me of the old exercise of copying a map over the telephone.
True story: One of my firefighting comms colleagues got everybody's tits in a tangle doing that exercise.
We eventually figured out that he was East-West dyslexic.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
|
|
|
|
|
I once made a huge East-West mixup because my frame of reference was heading South.
Heading South… right turn will take you … east! East is always right!
I realized the mistake way too late!
|
|
|
|
|
Decades ago, on my first couple of trips to the US, I used to regularly get lost driving back to my motel, but only in the daytime.
Finally twigged it was because I unconsciously navigated by the sun, and it went round the sky the wrong way.
Go somewhere, following a map or street signs ... 3 hours later go to drive back. The sun is now 90deg clockwise from where it should be.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
|
|
|
|
|
To go even more off topic…
Do Australian maps typical orient with North as up, or does it make more sense with South as up?
|
|
|
|
|
On serious maps, North is always up. There are some exceptions for small areas (e.g. building/lot plans) and joke maps.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
|
|
|
|
|
I haven't read any of the other replies but ... it's certainly still quite alive as an extention if Adobe products, namely "Animate", are (the qualified is) accommodating of .swf imports. At least to me anyway, having struggled for years using PremierePro, AfterEffects, FlashPro, and any number of other 32-bit platforms while under stand-alone license perpetuity.
I learned much about controlling my temper after installing cheesey converters that contained malware also. So if someone wants to continue writing little apps to get around dead platforms and wants to dissemble themselves by sequestering stuff my anti-virus is incapable of detecting ... I say ... bring it on!
|
|
|
|
|
why not use gif or some existing library rather ...............................
Caveat Emptor.
"Progress doesn't come from early risers – progress is made by lazy men looking for easier ways to do things." Lazarus Long
|
|
|
|
|
SWFs can actually be smaller than gifs depending on what you're doing.
Not a lot of libraries for this on IoT. Probably somewhere around zero.
To err is human. Fortune favors the monsters.
|
|
|
|
|
i guess it depends on what hardware you program against Spine: Runtimes ... i'm seeing [Castle Game Engine](https://castle-engine.io etc for arm...
Caveat Emptor.
"Progress doesn't come from early risers – progress is made by lazy men looking for easier ways to do things." Lazarus Long
|
|
|
|
|
Yes. I have a bunch of games from back in the day ported to be played on computer (again back in the day). They are all swf.
"It is easy to decipher extraterrestrial signals after deciphering Javascript and VB6 themselves.", ISanti[ ^]
|
|
|
|
|
A bit of an aside because I've been watching you with your IoT threads: how/when did you get into IoT, and where would be a good place to start if I want to learn more?
Thanks for being you
|
|
|
|
|
D'awwww. 
Well, what I would do is purchase an ESP32 off of Amazon or something.
Also get one of the Arduino starter kits (about $50-$70 for a decent one)
I like the Espressif reference boards. They are the makers of the ESP32 and they use better components in their reference boards than other manufacturers sometimes do in their boards. The model I'm pointing you to is a WROVER. The more typical one is the WROOM. They are the same chip, except the WROVER has an additional 4MB of PSRAM (basically slightly slowish RAM) in addition to the 512kB (300kB usable) of SRAM.
Once you have one of the those, Download VS Code if you haven't already and install the platformIO extension. Add a project (click the alien head on the left navbar, then click Open or get to it from the page that PIO welcome page that comes up), selecting node32s as the board type (it's a genericish ESP32 board that seems to work with all ESP32 boards). Select Arduino as the framework. It will take awhile the first time while it fetches everything, including the toolchain. be patient. it's not like that every time.
Also connect your ESP32 to a USB port.
Find a sensor in the starter kit you want to play with - like the ultrasonic distance finder or if you want to start small, an LED. I wouldn't use something complicated like the RF reader or accelerometer/gyro chip yet.
Anyway, once you find something you want to tinker with, google the part number (it's on the enclosed paper in the kit) along with ESP32 and you'll get a wiring guide and some sample code. =)
By the way, the ESP32 uses the concept of GPIOs. This # is the number you want to reference the pin by. Different boards may place them in slightly different places, but GPIO32 is *always* GPIO32 regardless of its location. Keep that in mind.
Edit: The kit will come with an Arduino board. I recommend throwing them in the trash but YMMV.
Here are some links to get you started.
ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials[^]
Arduino Starter Kit @ Amazon[^]
Espressif Devkit VE @ Amazon[^]
To err is human. Fortune favors the monsters.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
