2x16 LCD Graphics :)

[Demon]

Videos removed.

Robert

[Art]

Thanks Robert, I combined everything into one retro demo:



I robbed the circle drawing from a GLCD code sample here, and added a bit more.
There are 10 sections to the demo, but they only last a few seconds each.
The trick at the end is what I should have started with to trick people to thinking
I had the entire display

It is almost ready to go, I just have to make sense of the source for others.
Last time I released a project, there were three different revisions of matching
hardware and software improvements with schematics,
and although others got it working, it caused confusion, and years of follow up for me.
Being mindful of that this time round, the schematic is in the PBP manual



The only differences are this is a 16F628A (instead of 16F84/A in the manual),
the LCD backlight is powered by the pic (RB6) for the strobe effect in the video,
and the pic is driven with an 8MHz crystal to match the speed in the video.
The clock speed is not critical though.
The serial Rx pin in the familiar looking diagram is not implemented.

If you make a board for this, it's still tentative.
LCD R/W pin may need to be accessed later, so it might pay to wire
it to somewhere accessible before wiring it to ground to mod later
(I heard you can rip all of the character graphics from the LCD itself).
It should also get a couple of buttons.
Cheers, Art.

[Demon]

WARNING: Video may trigger epyleptic seizure in some viewers.

Use 3D glasses under welding goggles as protection.



Awesome stuff Art.

Robert

[Art]

Here it is:
http://www.freewebs.com/defxev/LC2D.zip

Interestingly... I realised this is one of the two LCDs I bought off Melanie here ages ago:
http://www.picbasic.co.uk/forum/show...=2298#post2298
Funny that. There was not much fancier at the time, but now the options are endless.

I always get that last little nice feature working AFTER the distribution

[Archangel]

Pretty fancy stuff there Art, He He Imagine that display on the bank's ATM machine, make a good video.

[Art]

Forgot this:

Credit to Centrex of Whirlpool forum (Australia).
Suitable for this, and whatever logging LCD circuit based on the PBP manual LCDOUT example circuit.

I will do a more bare source code, more intended for people using their own programs,
and am also getting an 8x1 or 8x2 LCD so I either get a whole line or a whole display to work with.
The reason being, I hear by connecting the LCD R/W line to an IO pin, you can access the
LCD's CGROM, and rip the character set. That would be great for the pixel perfect text scroller.

Up until now, the character data has been stored on EEPROM or on-chip EEPROM for these sort of tricks.

[Ioannis]

You are kidding me, right?

Unbelievable graphics on this LCDs!!! Wow, Art. Supercalifragilisticexpialidocious!

Ioannis