LPD8806 Digital Light Wand + SD Card + LCD

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is0-mick
 
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LPD8806 Digital Light Wand + SD Card + LCD

Post by is0-mick »

Hi Guys,
Someone kindly sent me some LPD8806 strip to create a version of my Digital Light Wand with LCD + SD reader light painting tool.

You can select a bitmap image on the SD card using the LCD display, and then send it to the strip.

If anyone wants the code, its available here:
http://BANNED.com/ueJhzQbK

Some pictures of it in action
http://www.flickr.com/photos/68646769@N ... otostream/

Mick

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is0-mick
 
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Re: LPD8806 Digital Light Wand + SD Card + LCD

Post by is0-mick »

I’ve now added the Gamma Lookup Table that I came across in one of the LPD8806 examples, which seems to do a better job of converting 8bit RGB values to 7bit RGB due to the way our eyes work!

Previously I was just bit shifting, but the Gamma lookup helps produce an image that looks more comparable to the input image.

The image produced by bitshifting seemed to lack a little contrast and seemed too bright.

I’ve uploaded a picture to flickr produced with the new code so you can compare.

New code is now here:
http://BANNED.com/NbgLWdNF

Mick

larryp61
 
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Re: LPD8806 Digital Light Wand + SD Card + LCD

Post by larryp61 »

Hello is0-mick,
Do you have a schematic for the project? Like how to attach the sd, lcd and buttons? Thanks

larryp61
 
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Re: LPD8806 Digital Light Wand + SD Card + LCD

Post by larryp61 »

Sorry didn't know there was prebuilt shield for this.

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is0-mick
 
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Re: LPD8806 Digital Light Wand + SD Card + LCD

Post by is0-mick »

Just a one I picked up from ebay.
If you search for arduino lcd keypad, it should bring it up.

Here is a video of it on youtube.
http://www.youtube.com/watch?v=Mh-LZx1As4E


Mick

owenlab
 
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Re: LPD8806 Digital Light Wand + SD Card + LCD

Post by owenlab »

Hi Mick, it's possible to adapte this sketch with the HL1606 strip?
I saw your other code for 1606 strip, but run with LSB file and i need a sketch that runs with BMP or JPG file...
Could you write a sketch for this scope please?

really thanks a lot

Owen

bigmike3516
 
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Re: LPD8806 Digital Light Wand + SD Card + LCD

Post by bigmike3516 »

Hello Mick,
Do you think You can help me to adapt this sd card read function to my code, Im having serial conflict problems with my bluetooth module. Any help is greatly appreciated. Thanks!

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fyfnathan
 
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Re: LPD8806 Digital Light Wand + SD Card + LCD

Post by fyfnathan »

For anyone working on this years later and getting the "prog_uchar", you'll need to use an older version of the Arduino software if you don't want to change the code. "prog_uchar" has since been depreciated.

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