Mega Sudoku

Arduino Sudoku game made using 81 seven-segment displays!

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Giant handheld Sudoku game. Instead of using an LCD screen like any sane person would, I decided to use 81 seven segment displays! Actually, I found inexpensive three digit displays on AliExpress, so I only need to purchase 27 of them. :-)



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Martulas wrote 07/05/2017 at 19:27 point

Great project. Just one questions: what is that IC on the top of the breadboard?

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skot wrote 11/02/2016 at 18:37 point

There are a lot of nice LED segment controllers out there.. check out the TLC5920, HT16K33 and more! It can also be cheaper to make a bunch of small PCBs an connect them together vs. one giant PCB.

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Hari Wiguna wrote 11/03/2016 at 22:54 point

Thanks for the tips Skot!

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danjovic wrote 10/31/2016 at 15:19 point

Simply amazing! Congratulations!

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Hari Wiguna wrote 10/31/2016 at 15:25 point

Thanks Dan!  You got some cool projects too!

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Scott wrote 09/24/2016 at 06:31 point

great project man. you know i said it will look so cool it should be acrylic or epoxy dipped .

protected and guts visable .

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SephenDeVos wrote 09/11/2016 at 14:15 point

Saw your project on youtube, any progress yet? Any ideas about a case/cabinet to house the game in? would be a cool coffee-table-game...

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Hari Wiguna wrote 09/11/2016 at 20:26 point

Oh that would be cool!  As big as the displays are, they're not quite coffee-table sized.  That's a great idea though...
My current plan is to make it a handheld.  It's the size of a large iPad.
As far as progress, I've been learning EasyEDA PCB software because the EagleCAD that I have had cannot handle the large PCB without purchasing the next level license.

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matseng wrote 08/28/2016 at 02:50 point

Building a Sudoku device has been on my backburner for a long long time now.  I actually bought 100 pcs small top-view nixie tubes (not sure if it was IN-2 or not, all my stuff are boxed up and put in storage) to build one with a nice retro orange glow. 

But as usual a bunch of other projects got ahead in the queue of things-to-build.  Maybe one day... If you finished yours maybe I feel compelled to make mine ;-)

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qquuiinn wrote 08/25/2016 at 22:16 point

I love it! Keep up the good work, I can't wait to see your game completed.

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Hari Wiguna wrote 08/25/2016 at 23:37 point

Thank you! I can't wait to see this working too. :-)

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