Tobi's Corner » Arduino

sources for the table

theFloe — Tue, 09 Mar 2010 00:07:18 +0000

Here is the code for the display:

surematrix_animation.tar.gz (the Arduino PDE)
pyconvert.tar.gz (the python script for converting images)

Arduino IKEA Coffee table hack – SNAKE

theFloe — Sat, 06 Mar 2010 19:56:43 +0000

Playing Snake with NES Controller on the display!

www.youtube.com/watch?v=x7-wtJGhpzE

Arduino IKEA Coffee table hack – Animation

theFloe — Sun, 28 Feb 2010 12:39:03 +0000

www.youtube.com/watch?v=0Bu621bRCZ8

www.youtube.com/watch?v=gubQbWLMAnI

Displaying a 64x64 pixel animation exported from a GIF Animation with a custom python script.

UPDATE: After some optimization in the animation loading, the set pixel functions and the display refresh function the Arduino is able to display about 50 frames per second when displaying a 96x64 monocolor animation from flash memory.

Arduino IKEA Coffee table hack

theFloe — Fri, 26 Feb 2010 16:26:27 +0000

With three LED Boards from Sureelectronics, a Arduino and my good old ikea couch table I build something new.

www.youtube.com/watch?v=kXHrMa2NvqM

The displays are connected to the Arduino to share the row select pins (A,B,C and D) and the control lines EN, CLK & LATCH. The serial lines R1,R2,G1,G2 have their dedicated pins. So there are 19 pins needed out of possible 20 (not counting the reset pins as I/O). As the displays are loaded in 16 rows a 64bit some transformation has to be done while loading the display. This limits the update rate hard. A possible way to improve the frame rate is moving the transformation to the function setting the pixels. Or maybe changing the connection scheme to common R1,R2,G1,G2 with separate EN & LATCH for each display which would result in 15 I/O pins needed but maybe suffer from slower update rate. As the display modules are chainable it is possible to connect them in series and load the 16 rows with 192bits each and using only 11 pins, but reducing the frame rate again. Since the ATMega328 cannot achieve high enough frame rates at any connection scheme I would suggest using the chained way.

64×32 bicolor 5mm LED Matrix with Arduino

theFloe — Sat, 13 Feb 2010 17:11:30 +0000

Arduino Interface to Sureelectronic’s 6432 Dot Matrix 5mm Red LED Display Information Board.

www.youtube.com/watch?v=twW3xie_QBo

Download PDE:

surematrix.pde