Comments on: 64pixels are enough http://tinkerlog.com/2009/03/21/64pixels-are-enough/ Alex' blog Mon, 30 Jan 2012 22:34:38 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Charlieplexed animated heart hoodie « RobotSkirts http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-288999 Charlieplexed animated heart hoodie « RobotSkirts Sun, 09 Oct 2011 22:06:43 +0000 http://tinkerlog.com/?p=563#comment-288999 [...] The heart uses a technique called Charlieplexing to drive the 27 LEDs using just 6 pins. To finally get the device working, I just soldered wires directly to the heart. My favorite feature of this project was the simple Flash based animation tool Jimmie included to generate the Arduino sketch. It really made what could have been an arduous process of generating animation frame arrays very very easy. You can see the final few animations I programmed embedded below. I liked this badge idea so much, I ordered 2 of Alex’ 64 pixel kits. [...] [...] The heart uses a technique called Charlieplexing to drive the 27 LEDs using just 6 pins. To finally get the device working, I just soldered wires directly to the heart. My favorite feature of this project was the simple Flash based animation tool Jimmie included to generate the Arduino sketch. It really made what could have been an arduous process of generating animation frame arrays very very easy. You can see the final few animations I programmed embedded below. I liked this badge idea so much, I ordered 2 of Alex’ 64 pixel kits. [...]

]]> By: Lo and Behold, 64 Pixels are Enough! | Coffeebot Labs http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-148428 Lo and Behold, 64 Pixels are Enough! | Coffeebot Labs Sat, 13 Nov 2010 04:58:56 +0000 http://tinkerlog.com/?p=563#comment-148428 [...] enamoured with Alex Weber’s 64 Pixels project from the moment I saw it. When I happened across it (via Make:blog, I think), I was just [...] [...] enamoured with Alex Weber’s 64 Pixels project from the moment I saw it. When I happened across it (via Make:blog, I think), I was just [...]

]]> By: tgfuellner http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-121140 tgfuellner Sun, 12 Sep 2010 17:40:05 +0000 http://tinkerlog.com/?p=563#comment-121140 Simplicity rules! I like this small thing. You can compile with current AVR-GCC instalations by using the compiler option -fno-inline-small-functions In the Makefile: COMPILE = avr-gcc -Wall -Os -fno-inline-small-functions -DF_CPU=$(CLOCK) -mmcu=$(DEVICE) Simplicity rules!

I like this small thing. You can compile with current AVR-GCC instalations by using the compiler option
-fno-inline-small-functions

In the Makefile:

COMPILE = avr-gcc -Wall -Os -fno-inline-small-functions -DF_CPU=$(CLOCK) -mmcu=$(DEVICE)

]]> By: saw0 http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-86253 saw0 Mon, 28 Sep 2009 00:40:05 +0000 http://tinkerlog.com/?p=563#comment-86253 Thank you so much :) I found a Conversion table in the net. Greetings saw0 Thank you so much :)

I found a Conversion table in the net.

Greetings

saw0

]]> By: Alex http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-86156 Alex Sat, 26 Sep 2009 14:56:58 +0000 http://tinkerlog.com/?p=563#comment-86156 Hi saw0, 0x## is the hex notation. As an example: 0x18 is one byte in hex. In bits it looks like this: 0001 1000, so first 4 digits is the 1, that last 4 is the 8. So that lights up the two LEDs in the middle. Cheers, Alex Hi saw0,
0x## is the hex notation.
As an example: 0×18 is one byte in hex. In bits it looks like this: 0001 1000, so first 4 digits is the 1, that last 4 is the 8. So that lights up the two LEDs in the middle.
Cheers,
Alex

]]> By: saw0 http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-86155 saw0 Sat, 26 Sep 2009 14:49:46 +0000 http://tinkerlog.com/?p=563#comment-86155 Hey Alex! Thanks for pointing this out, now i also see that the wiring is different. I uncommented the part, It works flawlessly now. Thanks for this nice Blinky, my girlfriend loves it :) Just another question: I don't quite understand how to make own animations: 0x18, // ___XX___ 0x3C, // __XXXX__ 0x7E, // _XXXXXX_ 0xDB, // X_XXXX_X how can i translate the "0x##" part so i know which pixel i actually lights? Greets and thanks in advance! saw0 Hey Alex!

Thanks for pointing this out, now i also see that the wiring is different.

I uncommented the part, It works flawlessly now.

Thanks for this nice Blinky, my girlfriend loves it :)

Just another question: I don’t quite understand how to make own animations:

0×18, // ___XX___
0×3C, // __XXXX__
0×7E, // _XXXXXX_
0xDB, // X_XXXX_X

how can i translate the “0x##” part so i know which pixel i actually lights?

Greets and thanks in advance!

saw0

]]> By: Alex http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-86131 Alex Sat, 26 Sep 2009 06:41:20 +0000 http://tinkerlog.com/?p=563#comment-86131 Hi saw0, the pinout looks the same, but the LEDs of your matrix is common anode, while the one I used, was common cathode. There is a code snippet (display_active_row) in the source that is commented out right now. Try to use that part. Cheers, Alex Hi saw0,

the pinout looks the same, but the LEDs of your matrix is common anode, while the one I used, was common cathode.
There is a code snippet (display_active_row) in the source that is commented out right now. Try to use that part.

Cheers,
Alex

]]> By: saw0 http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-86068 saw0 Fri, 25 Sep 2009 11:34:03 +0000 http://tinkerlog.com/?p=563#comment-86068 Hello :) I am trying to build this with a 8x8 Led-Matrix: http://www.jsweihao.com/pro/dz-6.jpg It has the same witing as the one from Futurelec, but somehow i only end up with the whole matrix lit constantly. Any hints? Thanks saw0 Hello :)

I am trying to build this with a 8×8 Led-Matrix:

http://www.jsweihao.com/pro/dz-6.jpg

It has the same witing as the one from Futurelec, but somehow i only end up with the whole matrix lit constantly. Any hints?

Thanks

saw0

]]> By: Alex http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-80105 Alex Mon, 22 Jun 2009 20:02:36 +0000 http://tinkerlog.com/?p=563#comment-80105 Chris, a CR2032 would work. Marcus did his Space Invader Button with it. http://interactive-matter.org/2009/04/space-invaders-button/ Maybe the battery life is a bit limitted. Cheers, Alex Chris,
a CR2032 would work. Marcus did his Space Invader Button with it. http://interactive-matter.org/2009/04/space-invaders-button/
Maybe the battery life is a bit limitted.
Cheers,
Alex

]]> By: Chris http://tinkerlog.com/2009/03/21/64pixels-are-enough/comment-page-1/#comment-80097 Chris Mon, 22 Jun 2009 18:32:10 +0000 http://tinkerlog.com/?p=563#comment-80097 Is there anything special about a 3V CR2032 lithium battery that would make it unsuitable to power one of these? Is there anything special about a 3V CR2032 lithium battery that would make it unsuitable to power one of these?

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