First of all thanks to DangerousPrototypes! its because of you guys I worked on logic gates after college – else its usually the usual microelectronic stuff!
This build is a simple ‘Tic Tac Toe’ game. I ended up using 30 Logic ICs !
Lets see the video first, then lets see the design
Video:
Design document:
<PDF alert> This document: Tic_Tac_Toe has all the block diagrams and circuit diagram used.
Pictures:


Tic Tac Toe
Do leave a comment if you have any queries!
PS: The casing is ugly
Trying to build a good case for this project!
<Edit> Won a first place in the 7400 contest !
Tags: Circuit, Logic7400 Contest
[...] another entry in the 7400 Logic contest. [Circuitchef] used gates and a few flip-flops to build a two-player electronic Tic-Tac-Toe game. The full details or shared in the PDF file he links to in his post. We’ve also linked to it [...]
[...] another entry in the 7400 Logic contest. [Circuitchef] used gates and a few flip-flops to build a two-player electronic Tic-Tac-Toe game. The full details or shared in the PDF file he links to in his post. We’ve also linked to it [...]
I think you guys form INDIA…
Me too…
Me too did similar one in my college days Carry on GUYS..
[...] Circuitchef's Blog Build Log « Tic_Tac_toe [...]