May 11th, 2009

9 Bits Visual Memory

9 Bits Visual Memory

When i first saw this project i thought this could be turned into one of those dance steps learning game. The device consists of a 33 matrix of buttons. The system memorates the sequence in which you press the buttons and then plays it for you by lighting a LED under those buttons. You can also program multiple sequences. If you don’t press any button for a longer period of time, 4 seconds i believe, the device goes from recording to playback.

It is quite an interesting memory game, and can be transformed into a larger project. Like in one of those smart houses… in case you get lost this device will show you what path you took. On the other hand the algorithm behind this project can be used in beat generators, sequencers, power distribution sequencers and many others.

The Nove Bit as it was called is using Arduino and a TLC 5940 microcontroller. Source code is available for download as well as some instructions on how to build it.

9 Bits Visual Memory: [Link]

April 2nd, 2008

16×24 RGB LED Matrix

16×24 RGB LED Matrix

The most significant part used in this project is Texas Instruments’ TLC5940 LED PWM driver. It uses a clocked serial data input, and provides 12 bits of PWM resolution on each of 16 outputs.

Normally, the TLC5940 would require one output for each LED element. Since there are three elements per RGB LED, this would add up very quickly; the planned array would require 3 * 24 or 72 TLC5940 chips.

1624 RGB LED Matrix: [Via][Link]

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