Blinkenwall.com: Unterschied zwischen den Versionen
aus Metalab Wiki, dem offenen Zentrum für meta-disziplinäre Magier und technisch-kreative Enthusiasten.
Zur Navigation springenZur Suche springen (fuck you spambot) |
Sqrt2 (Diskussion | Beiträge) |
||
| Zeile 9: | Zeile 9: | ||
| − | == How == | + | === How === |
SVN with current software https://whatever.metalab.at/projects/blinkenwall | SVN with current software https://whatever.metalab.at/projects/blinkenwall | ||
| Zeile 25: | Zeile 25: | ||
* replacing the busybox binary on a live system during operation is insane and possible! :) | * replacing the busybox binary on a live system during operation is insane and possible! :) | ||
| − | == Reference == | + | === Reference === |
* [http://www.allegromicro.com/en/Products/Part_Numbers/6281/6281.pdf Allegro A6281 documentation] | * [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] | * [http://macetech.com/store/index.php?main_page=product_info&cPath=1&products_id=1 Shiftbrite] | ||
| − | + | === Who === | |
| − | |||
| − | == Who == | ||
| − | |||
* [[Benutzer:Overflo|Overflo]] - electronics, soldering, webinterface, fonera setup | * [[Benutzer:Overflo|Overflo]] - electronics, soldering, webinterface, fonera setup | ||
| Zeile 42: | Zeile 39: | ||
* [[Benutzer:Natano|Natano]] .C program to decode webinterface streaming files | * [[Benutzer:Natano|Natano]] .C program to decode webinterface streaming files | ||
| + | |||
| + | == Blinkenwall v1.5 == | ||
| + | |||
| + | Now with up to 70 fps and network mode! Go to [http://10.20.30.26/] to activate network mode and send your [https://secure.wikimedia.org/wikipedia/en/wiki/Netpbm_format P6 PPM] frames to port 1337/tcp. Be sure that all your frames are exactly 146 bytes in size! | ||
| + | |||
| + | === 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. | ||
== Videos == | == Videos == | ||
Version vom 28. Januar 2011, 04:59 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 up to 70 fps and network mode! Go to [1] to activate network mode and send your P6 PPM frames to port 1337/tcp. Be sure that all your frames are exactly 146 bytes in size!
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.
Videos
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
