1. _oneliner Arjan Scherpenisse arjan@scherpenisse.net

2. _oneliner (concept)

3. The tech specs 1 "master" arduino controlling everything
high-power i2c bus
custom control boards which generate signals for 8 monitors

6. It's open arduino control code PIC microchip assembly code
hardware designs of the board
MIT / FDL licensed

8. Electronics 101 Basically started from scratch
Did some soldering as a kid...
Hardware != software
But digital hardware is kind of similar

9. Learn from your mistakes
Luckily no major mistakes in _oneliner board, but some minor ones
I2C bus extender
LED pin
Missing connections on ctl chip
Mistakes in TinyVGA board
Hsync pin assignment
Airwires :-(
LED pin (again)

10. Conclusions Test it on your breadboards Then test some more
Do not make assumptions about important stuff!

11. Things to improve Make them more general-purpose
Pin-compatibility w/ arduino
Use free-as-in-speech electronic design software
(instead of eagle)

12. Back to _oneliner
... why did I make it?

13. Why not? Showing the simplicity of consumer electronics
I like retro-computing
64 monitors = 1 line of code
The snake eats itself
Transparency - nothing is hidden
The installation shows its own software

14. Process-art Software as an expressive medium Live coding can be cool
Control your softwares (dont let it control you)
It it's broken, fix it
If it does not do what you want, patch it
Software is alive.
If it does not do what you want, patch it fork it

15. Thanks.