Show Posts
Pages: [1] 2 3
1  Using Arduino / Sensors / Re: sparkfun 6dof IMU noise on: September 17, 2013, 10:30:51 pm

How far did you go to tune your PID variables?
2  Using Arduino / Programming Questions / Re: serial motor direction problem on: September 03, 2013, 09:37:15 am
I know this is getting a little older now, but wanted to say thanks for posting code and providing a resolution.
I will be taking on one of these soon. Do you ever ride it?
3  Using Arduino / Displays / Re: SOLVED-BIG 7 inch TFT Looks great- 1 issue. on: February 22, 2013, 03:01:12 pm
I am not sure of the 32 pin option. Please post your code. Also please ask the manufacturer to send you the PCB diagram to verify the pin connection is the same as the one posted above. Make sure you are initializing on the ssd1963_800.
 I have never installed a screen on a duo, I actually never run a screen on anything but a mega. In the event you get this to fire off you will quickly see why. The 7" is a daughnting task for the mega, much less a smaller chip.
If you really want to get into TFTs you might want to start smaller. Understanding how things work is vital and it is much easier to do once you have used one of the popular screens, ie the sainsmart 3.2.

Lastly, the changes noted above are for an exact configuration, leaning outside of this you will be on your own. Modifications to the .h and .cqq file are nessecary.
I apologize I can't be more help but you see above when I had my issues is was a matter of hours of trial and error and reading multiple forum postings trying to get to the heart of the issue. In less you are running a screen many people have used your troubles will be isolated to your experience.
Post the code, request the docs and post, post the link to the product, and I will make an effort to assist you.
4  Using Arduino / Displays / Re: SOLVED-BIG 7 inch TFT Looks great- 1 issue. on: February 21, 2013, 08:06:25 am
I understand you, "just want to get it working". Anything related with arduino other than base examples is challenging and requires research. Understand I have my hands full of other projects and life too.
I feel I should not have to say this, but in order to be of assistance I need- the IDE, the board, shield used (if any), code posted, modifications made to code listed and displayed. If you read through other forum post you find this is all the bare min. you must O.P. to get the proper help. Right now you are asking for help and I don't even know if you have a library installed. I hope you can see how I cannot be of assistance as you have not provided enough information.
5  Using Arduino / Displays / Re: SOLVED-BIG 7 inch TFT Looks great- 1 issue. on: February 19, 2013, 09:07:36 am
If you use the UTFT library most questions can be answered by the associated documentation. Pins- depends on what functions you plan to use with the screen I.e. SD card, touch, flash, etc..
The above post require knowledge of how to modify code. Reading through these post, reading the documentation from the chip manufacturer, and reading other forums will allow you to get things started.
Best of luck.
6  Using Arduino / Displays / Re: need fast lcd on: January 10, 2013, 09:10:44 pm
You will need a shield and personal opinion only run a mega, especially if you are looking at speed. In addition to that opinion, buy from someone you can get support from I would suggest, if you want a 3.2, do the sainsmart shield and TFT on a mega with the UTFT library.
7  Using Arduino / Displays / Re:SOLVED- BIG 7 inch TFT Looks great- 1 issue. on: January 10, 2013, 03:25:56 pm
Had to switch the LCD Spec
LCD_Write_COM(0 x B0);
LCD_Write_DATA(0x24); to (0x04); oddly enough switching it to 18 bit.

AHHH now for a cold one and to bask in the glory.

Thanks Bob for getting me strated in the right direction!
8  Using Arduino / Displays / Re: BIG 7 inch TFT Looks great- 1 issue. on: January 10, 2013, 03:04:08 pm
Well, found something odd but do not fully understand what I doing smiley-roll-sweat.
In the UTFT.cpp:
LCD_Write_COM(0xF0);      //pixel data interface

In the SSD1963 doc:
"9.74 set_pixel_data_interface
Command 0xF0
Parameters 1
                D/C D7 D6 D5  D4 D3 D2  D1  D0    Hex
Command    0    1   1   1   1   0   0    0    0      F0
Parameter1  1   0     0   0   0   A2   A1   A0      xx
Set the pixel data format to 8-bit / 9-bit / 12-bit / 16-bit / 16-bit(565) / 18-bit / 24-bit in the parallel host processor
interface. This command is used for display data only, the command format is always 8 bit.
A[2:0] : Pixel Data Interface Format (POR = 101)
000 8-bit
001 12-bit
010 16-bit packed
011 16-bit (565 format)
100 18-bit
101 24-bit
110 9-bit
Others Reserved
* Note : The un-used data bus will be driven to ground by SSD1963, so don’t connect the un-used data bus to

So I tried .._DATA(0x02) this ,I think, should equate to 16 bit packed. Blue shows up but with an odd shadow and green disappears.So it does not appear that is the issue.

Oh, how I wish I could view whats in this file-
9  Using Arduino / Displays / Re: UTFT+ITDB02-5.0 (SSD1963)+adruino mega 2560 white screen on: January 09, 2013, 11:28:19 pm
I would be complete blown away if your Arduino was bad. I have never had a bad board and could estimate I have had 40-50 Arduinos.
In your blink example purposely place your pin 34 low and try your experiment again on pin 35 and 34.
Give me a few days and I will try my 5"itead on an elecfreak shield and let you know what happens.
10  Using Arduino / Displays / Re: BIG 7 inch TFT Looks great- 1 issue. on: January 09, 2013, 11:14:38 pm
Thanks, that's a great idea I will look into that. I believe it is something such as this holding me up.
Oh just as a side note, no error in the library I'm using a tft it is not designed for.
11  Using Arduino / Displays / SOLVED-BIG 7 inch TFT Looks great- 1 issue. on: January 09, 2013, 10:52:47 am
In my quest to go bigger and better on TFTs I occasionally run into an issue, I have found a new issue and need some education from the TFT experts out there.

Hardware: Mega, Screen

Docs: SSD 1963  

And of course the UTFT.
When I first received the TFT I noticed it has to be the best built TFT I have received (comparing elecfreaks, itead, sainsmart, misc ebay) I am sure there are only a few manufacturers but the group that made this one really put some quality assurance into it.
A few details: received the screen, noted it is a 5v operating board (no shield..nice!) Plugged directly to mega using the pins specified by the UFTF library documents (this is not a supported display- I figured I would use this as a learning experience). On the Mega I am using pins 22-41 and 3.3V, 5V, both gnds. On the screen 3.3, 5v, both gnds, D0-D15, RS, CS, WR, RST, and left RD disconnected as I do not need to read back from the screen.
Plugged in BAM came on but mirrored, I expected this based on another post. Jumped on the web found a modification to the UTFT.cpp file
“Change rotation to: LCD_Write_COM(0x36);      //rotation”
WOW looks great running the UTFT example for the SSD1963_800, it is actually faster than I expected! Running a bit of my code, I will admit refresh is as I expected – slow; for my applications this is fine.
Now the part I need help with – I have no blue. No pixel will display blue. Also the color scheme is in (B, G, R), as opposed to (R, G, B). I attempted to modify the .h file to change the order but to no avail.

So I am confessing my ignorance to the forum courts: I do not know enough to make successful changes in the UTFT.cpp file to accomplish my goals.
Hopeful someone might have a suggestion on how to educate myself on understanding this issue.

12  Using Arduino / Displays / Re: LCD TOUCH HELP on: January 08, 2013, 10:22:21 pm
guix is absolutely correct on the board, shield, and mega. To further sweeten the deal... Order from amazon- sainsmart in your hands in a week. Order from dx-in about 7 days you will receive an email stating that your order has just shipped.
13  Using Arduino / Displays / Re: UTFT+ITDB02-5.0 (SSD1963)+adruino mega 2560 white screen on: January 08, 2013, 10:14:38 pm
Just an appears you are on the right board, you are using the right library, and you have a good display. I do have one concern about the shield. Have you found others using this combination? The iteads use a shield with ICs to reduce voltage while the elecfreaks use resistors. Shouldn't be an issue but maybe something to look at.
14  Using Arduino / Displays / Re: UTFT library on: January 06, 2013, 03:34:04 pm
So as I was washing the car I decided I would like a part of one of my codes to scroll.
Create int i and int j in one of your UTFT sketches,use (smallFont), make your BackColor(0,0,0) and drop this in somewhere.

  for (i=0; i<230;i++)
       j= (i +5);
       myGLCD.print ("Test", j, 55);

You can see it also fades color as it goes. This could be expanded on by changing the y value  of the print as well.
I am using a mega 2560, SainSmart 3.2 with matching shield and it "scoots" across my screen at a perfect rate.
Hope this helps.
15  Using Arduino / Displays / Re: UTFT library on: January 06, 2013, 01:32:39 pm
I believe, based on something I've tried before, that it is possible. Limitation for me was I could not have anything else on the screen.
Basics, if you wrote something on the left hand side of the screen, cleared it and wrote it again a few spaces over in the x direction using a for ()/ i++/ delay (), it would appear to scroll. The other issue is trimming off at the opposite side as the text will become unstable when it reaches the screen's limit. A few little tricks and you would give the impression to the viewer that it is scrolling.

I am going to try today to find a way to only reset a small area of the screen as I would like my RTC to actually show RT without refreshing all the images... Who knows how this will work out as I have not tried yet.

If this is possible you could pull the above and scroll through the refreshed area...?
Pages: [1] 2 3