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RD.LabRD.Lab
 

This is RD.Lab zone...here we'll upload little experiments with processing, arduino, puredata, linux code and many more...

For every question or information send an e-mail at lab@recursivedog.org
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*one second before ¬ stressing browser with processing 3D animation
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To view this content, you need to install Java from java.com
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Source code: one_second_before
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*dual head configuration for linux on laptops with ATI graphics cards
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Here you have the xorg.conf that i use with my laptop(Fujitsu Siemens with ATI radeon x700 graphic card and 16:9 screen); three different configurations, single mode, clone mode and extended desktop mode. Simply rename the one you need and use it.

ex. cp xorg.conf.xxx /etc/X11/ ----> cd /etc/X11/ ----> mv xorg.conf xorg.conf.old ----> mv xorg.conf.xxx xorg.conf
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single mode xorg.conf.single
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clone mode xorg.conf.clone
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extended desktop mode xorg.conf.dual
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*recursivedog splashimage [version 0.0] for Grub ++ how-to made your own splashimage
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recursivedog.xpm.gz
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The splash image is the image shown in the background when GRUB (the GRand Unified Bootloader) is displaying the list of operating systems you can boot. Typically, this is the corporate logo of your Linux distribution. But its very simple to customize it to an image of your choice. All you need is the GIMP and gzip.

1_Start the GIMP.
2_Click on File->New or type Ctrl+N
3_In the new image dialog, change Width to 640 pixels and Height to 480 pixels. Now click OK.
4_Create the image which you would like to be the splash image.
5_After you have finished creating the image, hit Alt+i or right click on the image and click on Image->Mode->Indexed...
6_In the Indexed Color Conversion dialog that appears, click on the radio button "Generate optimal Palette" and in "# of colors" enter 14. Click OK.(The image should be of only 14 colors)
7_Now right-click on the image and click on File->Save As...Save the file as splash.xpm in a directory of your choice.
8_Now open a terminal window and navigate to the directory where you have saved splash.xpm
9_Now key in gzip splash.xpm
10_You will find that a file named splash.xpm.gz is created in the directory where splash.xpm used to exist.
11_Copy this splash.xpm.gz to the /boot/grub directory.
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*arduino code: control 32 digital input using 7 [multiplexing using five 74LS151]
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Here you have the code and schematics for multiplexing 7 inputs of arduino boards to obtain 32 digital inputs, the microcontroller we use is the 74LS151
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mux151_32can.pde ---> arduino code
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mux32_proto_big.jpg ---> Big image
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schematics_big.jpg ---> Schematics image
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*arduino code + hardware schematics: control 64 digital input using 8 [using nine 74LS151]
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Here you have a muxing hardware schematics using nine 74LS151 multiplexors of eight channels; this run utilizing 8 arduino digital input to obtain 64 digital inputs (8 to 64 WOW!!). Layout is for dual layer(top and bottom).
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mux151_64can.pde ---> arduino code
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mux64.max ---> Orcad Layout or imagesMux64.rar ---> 1:1 scaled 300ppp printable images
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lib.rar ---> Orcad libraries necessary for this projects
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Copyleft[CC]Recursive Dog 2007 - Some Rights Reserved
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