This is the Proof of Concept code for the 4x5 Windows mock-up.
With a 4-7Segment Display on top
It is a static mockup that should be used to make a Video and show off the theory of the project.
Current structure:
PoC/
-> patternplayer
= This plays pre-defined patterns
-> life
= Game of Life
-> leap
= Leap motion controller demo
-> cheap_random
= dirty hack to show random windows
-> 7seg
= 7 segment tester
-> VdL_demo
= Main Demo Folder for the final VdL Demo
-> shiftout1
= Shift register test code
-> shiftout2
= Shift register test code
-> shiftout3
= Shift register test code
-> testcolors
= Test the 16x32 RGB Panel
Leap motion Python issues: under OS-X make sure you use the stock Python interpreter (/usr/bin/python)
The shift Array code is from this Tutorial page:
http://arduino.cc/en/Tutorial/ShiftOut
General information about shift registers: http://en.wikipedia.org/wiki/Shift_register
The one used for driving the 7 segment LED is a standard (SN)74HC595 which is an 8bit Shift register.
Datasheet: http://www.nxp.com/documents/data_sheet/74HC_HCT595.pdf
The used module is a 16 segment element with one decimal dot (http://www.adafruit.com/datasheets/BL-S80A-13.PDF)
UHR (Ultra High Red) version
We used a single in-line i(SIL) resistor to make our lives easy. http://en.wikipedia.org/wiki/Resistor
The LED Panel is a 16x32 panel. It is to be used vertically.
^ UP
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We flipped it 90 degrees ClockWise (CW)
> UP
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The Library of course uses the regular orientation. Consider this:
matrix.drawRect(x,y, sizeX, sizeY, matrix.Color888(255,255,255));
x,y are the starting co-ordinates starting from top-left
sizeX, sizeY will be the size of the rectangle we want to draw.
Everything is in pixel (px) logically 1px == 1LED
The ColorXXX() functions are used to define the color "spectrum"
Color333() - 3bit color representation
Color444() - 4bit color representation
Color888() - 8bit color representation
To simulate a grayscale is pretty difficult and needs some hacking:
http://upload.wikimedia.org/wikipedia/commons/9/93/256colour.png
We have 20 windows at our disposal.
I chose the cheapeast and dirties path possible for the PoC and the following map gives you an overview of the addressing of the windows on the mock-up:
> UP
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|X X X X X X X X X X X X X X X X|
|X X X X |
|X W X W X W X W |
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|X 1 X 6 X 11 X 16 |
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|X X X X X X X X X X X X X X X X|
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|X 2 X 7 X 12 X 17 |
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|X 3 X 8 X 13 X 18 |
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|X 4 X 9 X 14 X 19 |
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|X 5 X 10 X 15 X 20 |
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|X X X X X X X X X X X X X X X X|
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