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1  Using Arduino / Displays / Re: Where to find free sprites? on: September 01, 2011, 12:27:17 pm
Thanks, looks like I will have to contribute my own to the web shortly, so far I have scraped about 8 rouge/RPG images of my own together, doing it on a grid, and exporting the bitmap as code to paste into a progmem. I will see what I get by using font characters, one or two do look useable :-) Scouring the www for 2 whole days seems to have only yielded a dozen more, looks like I am trying to accomplish the downright unusual once again; story of my life.
2  Using Arduino / Displays / Where to find free sprites? on: August 30, 2011, 11:50:04 am
Anyone know where to find monochrome sprites, looking for the 2-color variety (ie. one color only for the wize), for GLCD preferably 8x8 or 16x16/12x12 or there-abouts. I have detected that the atari 2600 used to have (and still does) a huge following, and a mono graphics mode. But not many sprites to play with to get the creative juices started. Any 2-color bitmap formats supported normally on Windows (bmp, png,jpeg,gif) welcome.
3  Using Arduino / Displays / Re: ATmega328-PU, MCP23008, OLED display timing on: August 07, 2011, 01:09:42 pm
The command set looks new, even though the structure looks familiar and that it looks like a simple text module, from the timings they all look like 600ns with exception of clear command which is 2000; nothing unusual there. If you are having corruption, you want to look at cable length between chip and the unit. When you say "display" the right symbols on it, I get the impression you do get to see something displayed?
Give it a while, and then I would head over to the forums and try there, but you will have to explain your problem really well and include a snippet of the LCD initialization code that explains itself if you want results.
4  Using Arduino / Displays / Re: SED1520 library? on: August 07, 2011, 12:43:37 pm
 ^_^The Arduino forum is the boz. Thanks for the guidance, especially since I have not even got an Arduino, I bought a mega8 3 years ago, and "burned" some code into it using a printer cable I chopped in half, including the breadboard I had splashed less than £10, a victory in it-self; since then I have enjoyed the freedom of playing outside of the box and every free weekend has been spent on the avrfreaks forums; which went down all weekend the other day. Was I in need of a fix? I thought the Arduino forums was going to be full of guys playing, all just fun, but without any real experts. ,,,was I wrong.

I have probably toasted the LCD I have (I forgot to put the smoke into a glass jar with a wax seal), due to miss-understanding the wrong datasheet. But another unit is coming, so I get a second chance. I took pics of the LCDs, which I have now learned are totally differing chipsets. I should probably spend this evening updating the link with which datasheets I figured may work against the LCD(s) that is/are dead.
5  Using Arduino / Displays / SED1520 library? on: August 06, 2011, 03:48:34 pm
There is a long dead thread,37758.0.html on this topic, but the code appears to have never been uploaded to nor google code by the then poster otacon2k. I have a 122x32 unit with 2 chips, and am seeking some guidance on the timing sequence.

6  Using Arduino / Displays / Re: LCD does not work unless Arduino is reset. on: August 05, 2011, 03:45:32 pm
The LCD clock will be around 7Mhz, perhaps less, and needs half a dozen clocks to initialise. Asside from the power rail stabilizing at 5v (the arduino will probably run or spin up the oscillator from 3.3v already if you have a -V chip).
Basically means waiting about 50ms will get you into the clear unless you have access to the actual shipset datasheet in which case you can bring the delay down.
Alternative #2 is to use a R-C network of 100nf and a 10Kohm resistor to hold the LCD in reset for long enough. Option #3 is to tie your reset pin to the LCD, although not a bad plan, it will interfere with the downloader, hope these comments help.
7  Using Arduino / Displays / Re: Hell with QY-12864bg on: August 05, 2011, 03:29:08 pm
Having hell too. What chipset is the QY-12864bg? Was it a KS0108?
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