Graphic LCD Dithering Tests

Just a quick test for dithering live video with processing.org using different dithering algorithms.

Category:

Howto & Style

Tags:

• processing.org
• processing
• graphiclcd
• lcd
• dithering

[AceOfHearts001]

Good stuff. Can you suggest to me a good place to learn how to write to a 64x128 GLCD? Like what pins to control, how to control them, etc? I tried every where and cant any good information...nothing, there stuff out there for charecter LCD but not much on GLCD....the datasheets dont help that much either. Really stuck...appreciate any suggestions to where I can find more info. Many thanks.

[extrapixel83]

hi, it's a graphic lcd with a serial backpack from sparkfun. (DX160 SERIAL GRAPHIC 128x64 LCD). This exact model isn't available anymore. But there are others on the market. It has kind of a graphic API that you control over serial commands. I wrote a processing-sketch (processing-dot-org) that renders the graphics, and sends it to the display over USB-serial. Google for "Serial Graphic LCD"

[simmonsstummet]

@extrapixel83 how did you do it? you send it directly to the lcd backpack? the processing scheme_? did you use arduino?

[extrapixel83]

@simmonsstummet hi... pls read my comments about the parts used. no arduino involved (you could use an arduino though, but it won't have the cpu-power to render realtime 3d-graphics!). i connected it directly to a computer using a usb-serial adapter. i can send you the processing source code if you want. send a private message with your email address.

[simmonsstummet]

@extrapixel83 thank you. I believed there wasn't computer involved. I'm trying to undestand how to run a Processing program on an lcd without computer.

[extrapixel83]

@simmonsstummet by definition, this is not possible. however, you can connect an arduino and create an arduino-program to draw to the lcd. but as i said before, it's not easy to "draw" using an arduino, compared to processing. you won't have any 3d graphics. but you have stuff like lineTo in the serial protocol of the lcd-backpack mentioned before. i don't want to be rude... but have you tried to google the prdoducts mentioned here to read about the technologies involved? you should!

[extrapixel83]

no, it's quite easy. Go for displays with a (serial) backpack so you don't have to mess with the numerous pins on the display.

[DobarDabar]

Have you used some kind of PWM?

[LeoDJ1992]

Hard is not enough...

[Yakshinian]

Nice and amazing.

[Yakshinian]

It is hard to get into this sort of stuff without any training with somebody who has done it before.