Blinkenwall.com: Unterschied zwischen den Versionen
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− | { | + | [[Bild:Blinkenwall_webinterface.png|thumb|right|300px|Webinterface Screenshot]] |
+ | == Blinkenwall.. == | ||
+ | |||
+ | * is the wall between our [[Hauptraum|mainroom]] and the [[Bibliothek|library]] | ||
+ | * in this wall are 9x5=45 glassbricks installed | ||
+ | * next to every glassbrick there is one RGB-led with a pretty neat [http://www.allegromicro.com/en/Products/Part_Numbers/6281/6281.pdf chip] attached | ||
+ | * these presoldered boards are called [http://macetech.com/store/index.php?main_page=product_info&cPath=1&products_id=1 Shiftbrite] | ||
+ | * they are currently controlled from an arduino this may change soon for something with more computational power :) | ||
+ | * [http://blinkenwall.com Click here to draw something nice on the wall!!] | ||
+ | |||
+ | |||
+ | === How === | ||
+ | |||
+ | SVN with current software https://whatever.metalab.at/projects/blinkenwall | ||
+ | __TOC__ | ||
+ | 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 === | ||
+ | |||
+ | * [http://www.allegromicro.com/en/Products/Part_Numbers/6281/6281.pdf Allegro A6281 documentation] | ||
+ | * [http://macetech.com/store/index.php?main_page=product_info&cPath=1&products_id=1 Shiftbrite] | ||
+ | |||
+ | === Who === | ||
+ | |||
+ | * [[Benutzer:Overflo|Overflo]] - electronics, soldering, webinterface, fonera setup | ||
+ | * [[Benutzer:Wizard23|Wizard23]] - help with electronics, basic software setup | ||
+ | * [[Benutzer:Metaz|Metaz]] - arduino library software for shiftbrites | ||
+ | * [[Benutzer:Nex|Nex]] arduino software for webinterface streaming | ||
+ | * [[Benutzer:Mactux|Mactux]] CSS + iphone webinterface | ||
+ | * [[Benutzer:Natano|Natano]] .C program to decode webinterface streaming files | ||
+ | |||
+ | |||
+ | == Blinkenwall v1.5 == | ||
+ | |||
+ | Now with ~30 fps and network mode! Go to http://blinkenwall.in.metalab.at/ to activate network mode and send your [https://secure.wikimedia.org/wikipedia/en/wiki/Netpbm_format P6 PPM] frames to port 1337/tcp. Make sure that all your frames are exactly 146 bytes in size or you'll risk graphics glitches at higher frame rates. | ||
+ | |||
+ | === Who === | ||
+ | * [[Benutzer:Sqrt2|sqrt2]] - Making it work | ||
+ | * [[Benutzer:Amir|Amir]] - Netpbm library for Arduino | ||
+ | |||
+ | === Lessons learned === | ||
+ | * netcat has fixed-length 8K RX/TX buffers. | ||
+ | * The Arduino Duemilanove resets on DTS low (the IDE uses that to reset before programming). | ||
+ | * The Arduino Serial class implements an RX ringbuffer of 128 bytes. Patch the Arduino SDK to adjust this to your needs; RX_BUFFER_SIZE in hardware/arduino/cores/arduino/HardwareSerial.cpp. | ||
+ | * mkfifo(1) is neat when opening ttyUSB* devices leads to an Arduino reset. | ||
+ | |||
+ | === Applications === | ||
+ | * [https://whatever.metalab.at/projects/blinkenwall/v1.5/fonera/ blinkblink] -- old-school animations | ||
+ | * [https://whatever.metalab.at/projects/blinkenwall/blinkenfft/ blinkenfft] -- real-time audio FFT | ||
+ | * [https://whatever.metalab.at/projects/blinkenwall/mplayer_vo/ mplayer -vo blinkenwall] -- watch movies in a stunning resolution of 9x5 | ||
+ | |||
+ | == Videos == | ||
+ | First Blinkenwall | ||
+ | * http://vimeo.com/2931136 | ||
+ | * http://vimeo.com/5714761 | ||
+ | |||
+ | Blinkenwall after resurrection at [[Hackathon_8]] | ||
+ | * https://vimeo.com/45418812 | ||
+ | |||
+ | == Photos == | ||
+ | {| width="100%" | ||
+ | |- | ||
+ | |width="33%" valign="top"|[[Bild:Blinkenwall_back_closeup2.JPG|thumb|center|300px|Another Backside close-up]] | ||
+ | |width="33%" valign="top"|[[Bild:Blinkenwall_back_closeup.jpg|thumb|center|300px|Backside close-up]] | ||
+ | |width="33%" valign="top"|[[Bild:Blinkenwall_back_closeup_with_flash.JPG|thumb|center|300px|Backside close-up with flashlight]] | ||
+ | |} | ||
+ | |||
+ | |||
+ | == Various Links == | ||
+ | * Sample effect - https://whatever.metalab.at/user/meta/blinkenwall/WallSample | ||
+ | * SVN with current software https://whatever.metalab.at/projects/blinkenwall | ||
+ | * http://blinkenwall.com | ||
+ | |||
+ | [[Kategorie:English]] | ||
+ | [[Kategorie:Hauptraum]] | ||
+ | [[Kategorie:Projekte]] |
Version vom 4. Februar 2013, 19:35 Uhr
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
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
Blinkenwall v1.5
Now with ~30 fps and network mode! Go to http://blinkenwall.in.metalab.at/ to activate network mode and send your P6 PPM frames to port 1337/tcp. Make sure that all your frames are exactly 146 bytes in size or you'll risk graphics glitches at higher frame rates.
Who
Lessons learned
- netcat has fixed-length 8K RX/TX buffers.
- The Arduino Duemilanove resets on DTS low (the IDE uses that to reset before programming).
- The Arduino Serial class implements an RX ringbuffer of 128 bytes. Patch the Arduino SDK to adjust this to your needs; RX_BUFFER_SIZE in hardware/arduino/cores/arduino/HardwareSerial.cpp.
- mkfifo(1) is neat when opening ttyUSB* devices leads to an Arduino reset.
Applications
- blinkblink -- old-school animations
- blinkenfft -- real-time audio FFT
- mplayer -vo blinkenwall -- watch movies in a stunning resolution of 9x5
Videos
First Blinkenwall
Blinkenwall after resurrection at Hackathon_8
Photos
Various Links
- Sample effect - https://whatever.metalab.at/user/meta/blinkenwall/WallSample
- SVN with current software https://whatever.metalab.at/projects/blinkenwall
- http://blinkenwall.com