bradsprojects has been created and maintained by me - Brad!

 

Welcome to the Original 8x8 Game System page.

I was selling these as a build it yourself kit but unfortunately I have run out. You can however build your own with all the information contained within this web page. You can download schematics, parts list and there are a number of games to try out also.

 
 

The circuit design is very simple - it uses an 8×8 bi-colour led matrix display, four 74373 tri-state buffer / latches, eight mini push-buttons, a handful of transistors and resistors - and at the heart of it all is the pic16f648a microcontroller with 16 I/O ports and 4k of program memory.

I built a prototype using a breadboard and also made up a dodgy looking controller from vero-board. I then started programming various games and example programs for the system. Then when i was happy that it would make a good kit - I then drew up the PCB design using a great program called diptrace. I then sent off my design to PCBCART and had 50 boards made up.

 
 

The Games.

 
 
Car Race
1P Pong
Chopper
Bouncing Balls
Painter
Adventure
Text Scroller
Led Flasher
Police Flasher
Invaders!
 

Click here to view the full size schematic.

 
 

My good friend Stacy has even come up with a nifty handle for the 8x8 game system made out of some PVC pipe.

 
 

Parts List

 
 
PIC16f628a or PIC16f648a microcontroller
8x8 RG LED Matrix
16 x NPN Transistors (2n2222a or similar)
32 x 150 ohm Resistors
10 x 10k ohm Resistors
8 x Push Buttons
4 x 74373 chips