Potbox

Potbox

founder:	stick
depends on:
interested:
software license:	BSD
hardware license:	CC BY-SA
status:	active

                          +----------+   +----------+
                          |  potbox  |   |  potbox  |
                          +----------+   +----------+
                               |              |
                               v              v
                          +----------+   +----------+
            ,-----------> | renderer |   | renderer |
           /              +----------+   +----------+
          |                    |              |
          A                    v              v
webcam   |_|              +----------+   +----------+
                          |  rupter  |   |  rupter  |
                          +----------+   +----------+
======= glass ======           |              |
                               |   ,----------'
+------------------+           v   v
|    LCD screen    |       +-----------+
+------------------+       |   mixer   |
   \____________/          +-----------+
         ^                       |
          `---------------------<|
                                 |
                                 v
                             to output

Renderer

Renderers are common notebooks with VGA→composite converter or lightweight devices with composite output (e.g. Raspberry Pi).

Video Mixer

bent Panasonic WJ-AVE5
see karlklomp and lushprojects for more info
BOM
- 1x box
- 2x 1k potentiometer
- 2x CINCH (audio in)
- 26x switch

Potbox

BOM
- 1x LPC1343
- 1x box
- 2x CINCH (audio in, video out)
- 8x 50k potentiometer (effects)
- 8x switch (effect react to audio)
- 8x switch (bool flags)
- 1x log 50k potentiometer (audio volume)
- 4x button (program select)
- 1x zener diode

Generator

function:

program select (4 buttons + 2 digit display)
4 pots - global setup (size, black level, white level, noise)
4 pots - effect setup (see below for params)

#	effect	param A	param B	param C	param D
00	lissajous curves	a	b	delta	-
01	grid - points	density	rotation	rotation speed	scatter
02	grid - lines	density	rotation	rotation speed	scatter
03	wireframe sphere	rotation X	rotation Y	rotation speed X	rotation speed Y
04	wireframe cube	rotation X	rotation Y	rotation speed X	rotation speed Y
05	shaded cube	rotation X	rotation Y	rotation speed X	rotation speed Y
06	circle	thickness	scatter	-	-
07	rectangle	rotation	rotation speed	thickness	scatter
08	circle+symbol	rotation	rotation speed	circle thickness	scatter
09	rectangle+symbol	rotation	rotation speed	rect thickness	scatter

Rupter

see karlklomp

BOM
- 1x box
- 2x CINCH (video in, video out)
- 1x AD8012 (Karl's design uses AD8072, but they are deprecated now)
- 4x 100R potentiometer
- 1x switch
- 1x 6-contact switch
- 1x LM317T
- 1x 220 ohm resistor
- 1x 1k ohm resistor

Converters

Some converters are needed for the whole solution to work. Especially VGA→composite (from notebook to Rupter) and composite→VGA (from Mixer to screen/output).

Monitor

We use the usual LCD screen (small are OK too).