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LedFloor

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Revision as of 16:27, 3 February 2011 by Guyzmo (Talk | contribs) (→‎Led Floor)

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Led Floor

How to turn the 11 windows of the hacklab into a big led display ?

  • what have we got to do it ?
    • Windows that are H189xW95.5 centimeters
    • 1000 red leds
    • loads of RJ45 and old IDE/SCSI/floppy buses
  • what we need ?
    • a system to control each diode (or group of diodes) independantly
    • that is not too expensive

Solution #1

use a TLC5940NT that can control about 16 LED each 

* datasheet: http://datasheet.octopart.com/TLC5940NT-Texas-Instruments-datasheet-153017.pdf
* schematic: http://webhome.csc.uvic.ca/~mcheng/samples/led_wheel/images/hack_schematic.jpg
* O(price) = $180 for the 64*TLC5940NT, so we'll need also several protoboard to be cut to bind them on.

Solution #2

use the snootlab's i2c led driver solution that can control 16 LED each 

* 64*i2c led driver = 9.95*64 = 636.80
* 1*i2c shield = 17.95
* 1 ardunio = 20
* O(price) = 674.75 euros

Solution #3

use shift registers... ?

Solution #4

use two Peggy 2 board : 

* 2* http://evilmadscience.com/tinykitlist/157
* O(price) = 95*2 = $180

Solution #5

* 42 ?
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