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
LPD8806 Digital Light Wand + SD Card + LCD
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Please be positive and constructive with your questions and comments.
- is0-mick
- Posts: 3
- Joined: Mon Nov 12, 2012 6:47 am
Re: LPD8806 Digital Light Wand + SD Card + LCD
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
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
-
- Posts: 2
- Joined: Sat Nov 17, 2012 12:06 am
Re: LPD8806 Digital Light Wand + SD Card + LCD
Hello is0-mick,
Do you have a schematic for the project? Like how to attach the sd, lcd and buttons? Thanks
Do you have a schematic for the project? Like how to attach the sd, lcd and buttons? Thanks
-
- Posts: 2
- Joined: Sat Nov 17, 2012 12:06 am
Re: LPD8806 Digital Light Wand + SD Card + LCD
Sorry didn't know there was prebuilt shield for this.
- is0-mick
- Posts: 3
- Joined: Mon Nov 12, 2012 6:47 am
Re: LPD8806 Digital Light Wand + SD Card + LCD
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
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
-
- Posts: 2
- Joined: Thu Nov 22, 2012 8:30 am
Re: LPD8806 Digital Light Wand + SD Card + LCD
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
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
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- Posts: 1
- Joined: Mon Aug 19, 2013 6:22 pm
Re: LPD8806 Digital Light Wand + SD Card + LCD
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!
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!
- fyfnathan
- Posts: 1
- Joined: Fri Jun 19, 2015 10:12 pm
Re: LPD8806 Digital Light Wand + SD Card + LCD
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.
Please be positive and constructive with your questions and comments.