Go Down

Topic: LCD background color options? (solved) (Read 1 time) previous topic - next topic

Neight


Saw no mention of the display data command in the documentation.
Maybe the same lcd is available elsewhere with another datasheet?



I didn't see it again after it was mentioned on page 3.  I have scoured the data sheet, and even read all three revisions of the manual that have been released.  minor changes made in each revision, but no mention of background color after page 3 in any of them.

I have dismissed this idea twice in the last week, but something keeps drawing me back to it.  It would be a fun addition to my dice roller if the screen could change colors based on mode, or when the dice are "rolling".  it would just be for fun, and the unit works just fine without the addition of a color changing screen, but I do like the idea.  If it wont work, it is really no big deal, I am mostly just following my curiosity at this point.
absence of proof is not proof of absence

MAS3

Page 3 tells you about 2 colors.
You have the option to have Deep blue by switching on the pixel, or the alternative of Yellow green by turning it off.
It is a monochrome display.

Just take a peek at the remarks to those lines where it says "The Color is defined as the inactive/background color"
Have a look at "blink without delay".
Did you connect the grounds ?
Je kunt hier ook in het Nederlands terecht: http://arduino.cc/forum/index.php/board,77.0.html

Neight


Page 3 tells you about 2 colors.
You have the option to have Deep blue by switching on the pixel, or the alternative of Yellow green by turning it off.
It is a monochrome display.

Just take a peek at the remarks to those lines where it says "The Color is defined as the inactive/background color"


ok, so if I understand this correctly, the color deep blue is just a descriptor for when a pixel on the display is on.  otherwise the pixel is the default background color.

the pixels that are on do not look any shade of blue to me, but I guess that is neither here nor there how I would describe it.

That does make sense, even if I don't agree with them on what they are calling deep blue :P

Thank you for clearing this up for me.  I was about to ask if this might be a feature of 8 bit mode, because I can't seem to find an application where 8 bit mode would even be used.  It was making me wonder if 8 bit was for two color mode. 
This thing sure looks monochrome to me, and it was a bit confusing that they were describing it otherwise.

Very much appreciate both of you taking the time to help me investigate this!
Thank you
N8
absence of proof is not proof of absence

floresta

Quote
I was about to ask if this might be a feature of 8 bit mode, because I can't seem to find an application where 8 bit mode would even be used.

The 8-bit mode is really just a carryover from the olden days when the LCD was hooked onto the data bus of an 8-bit microprocessor and treated just like any other memory mapped device.  It does not provide any added features and there is little reason to consider it except when you are starting out to learn how to control one of these displays on your own, without using a library written by others.

Don


Neight



The 8-bit mode is really just a carryover from the olden days when the LCD was hooked onto the data bus of an 8-bit microprocessor and treated just like any other memory mapped device.  It does not provide any added features and there is little reason to consider it except when you are starting out to learn how to control one of these displays on your own, without using a library written by others.

Don




Thanks for the information Don :)

That does explain the last of my questions when dealing with this LCD screen.
I really should sit down and learn the steps that are covered in the LiquidCrystal library so I know what is going on behind the scenes of the sketch, but for the moment, I am happy to have the library to use and be able to get my current project working with little trouble.
This particular project has been a bit of frustration, and having it working right so far is a relief.
Thank you for filling in some gaps for me, I very much appreciate it!
N8
absence of proof is not proof of absence

Go Up