Blinkenwall.com

Blinkenwall..

• is the wall between our mainroom and the library
• in this wall are 9x5=45 glassbricks installed
• next to every glassbrick there is one RGB-led with a pretty neat chip attached
• these presoldered boards are called Shiftbrite
• they are currently controlled from an arduino this may change soon for something with more computational power :)
• Click here to draw something nice on the wall!!

How

SVN with current software https://whatever.metalab.at/projects/blinkenwall

We just connected the Arduino to a fonera 2202 over serial.

Now its possible to stream data for display to the blinkenwall using your favourite webbrowser.

Lessons learned:

• one can simply connect RX/TX from fonera to arduino
• no stty in default openwrt busybox build
• openwrt building is an fairly easy task
• replacing the busybox binary on a live system during operation is insane and possible! :)

Reference

• Allegro A6281 documentation
• Shiftbrite

Who

• Overflo - electronics, soldering, webinterface, fonera setup
• Wizard23 - help with electronics, basic software setup
• Metaz - arduino library software for shiftbrites
• Nex arduino software for webinterface streaming
• Mactux CSS + iphone webinterface
• Natano .C program to decode webinterface streaming files

Photos

Another Backside close-up

Backside close-up

Backside close-up with flashlight

Webinterface Screenshot

Various Links

• Sample effect - https://whatever.metalab.at/user/meta/blinkenwall/WallSample
• SVN with current software https://whatever.metalab.at/projects/blinkenwall
• http://fridge.metalab.at:1336/ (url will change soon)