Search found 27 matches

by Mike M
Sat Jan 19, 2013 8:50 am
Forum: Online Shopping
Topic: Got a spare LE-MM013 to sell me?
Replies: 3
Views: 3967

Re: Got a spare LE-MM013 to sell me?

Thanks for the reply, Brad. I'd rather get one from someone here in the states. Shipping costs from AU are pretty steep. I know I should just break down an buy 10 for $12.50 from ebay but funds are tight right now.

Take care... Mike
by Mike M
Fri Jan 18, 2013 3:24 am
Forum: Online Shopping
Topic: Got a spare LE-MM013 to sell me?
Replies: 3
Views: 3967

Got a spare LE-MM013 to sell me?

Just wondering if anyone here in the US has a spare LE-MM103 8x8 red/green display they might care to sell me?

TIA. Cheerful regards, Mike
by Mike M
Wed Jan 09, 2013 1:20 am
Forum: The 8x8 Game System
Topic: Design Flaw?
Replies: 2
Views: 21331

Re: Design Flaw?

Well, I'm sorry to be the one that caught the problem...

Cheerful regards, Mike
by Mike M
Wed Jan 09, 2013 12:04 am
Forum: The 8x8 Game System
Topic: 8x8 Game System Clone
Replies: 2
Views: 6935

Re: 8x8 Game System Clone

Thanks, Brad.
by Mike M
Tue Jan 08, 2013 5:33 pm
Forum: The 8x8 Game System
Topic: 8x8 Game System Clone
Replies: 2
Views: 6935

8x8 Game System Clone

Just wanted to share a few photos of the prototype for an 8x8 Game System re-design. The display is very even and bright, though you might not be able to tell from the pictures (sorry). No schematic yet but here's a quick-n'-dirty parts list; 1 ea 16F1828 (or 16F690, or 18F14K22) 2 ea MIC5891 8-bit ...
by Mike M
Sun Jan 06, 2013 1:17 pm
Forum: PIC Tutorials
Topic: Homework 2 Example...
Replies: 1
Views: 6082

Homework 2 Example...

I think homework assignment #2 is very interesting because it involves animating or moving a single dot around the outside edge of the 8x8 matrix. I would love to see what other people come up with because I imagine there are hundreds of different ways to write a program for this assignment. Here's ...
by Mike M
Sun Jan 06, 2013 10:30 am
Forum: PIC Tutorials
Topic: Homework 1 Example...
Replies: 1
Views: 5696

Homework 1 Example...

This may not have been a good idea (lol). I ended up using a number of 'tricks' to optimize the size of the program, like using an in-line table, which, when compared to a traditional table, only saves one word of program memory and one stack level. Anyway, the program uses 30 words of program memor...
by Mike M
Sun Jan 06, 2013 3:15 am
Forum: PIC Tutorials
Topic: Tutorial 7 - All the info you need is right here!
Replies: 39
Views: 39702

Re: Tutorial 7 - All the info you need is right here!

Hey Brad, thanks for the links, but I didn't see any schematics that show the mux' method...
by Mike M
Sun Jan 06, 2013 2:28 am
Forum: The 8x8 Game System
Topic: Design Flaw?
Replies: 2
Views: 21331

Design Flaw?

Hi Brad, I wonder if I've stumbled onto a design flaw on another one of your projects? When I saw the 8x8 Game System I thought it was a very intuitive and logical evolution of the original Great Race project. Driving all of the red and green LEDs on the display as well as adding row driver transist...
by Mike M
Sat Jan 05, 2013 3:38 am
Forum: PIC Tutorials
Topic: Tutorial 7 - All the info you need is right here!
Replies: 39
Views: 39702

Re: Tutorial 7 - All the info you need is right here!

You're certainly on to a good thing there Mike - I have noticed that this is the way that the LED displays that I buy have been running the show. Cool. What displays, if you don't mind me asking? And you are correct - it saves a whole heap of I/O pins and streamlines your code :) That's not all. If...
by Mike M
Fri Jan 04, 2013 9:17 pm
Forum: PIC Tutorials
Topic: Tutorial 7 - All the info you need is right here!
Replies: 39
Views: 39702

Re: Tutorial 7 - All the info you need is right here!

What you need is a way to expand your output ports. The best way to do this (in my experience) is to get some 74373 chips. They are 8-bit data latches with tri-state outputs. What you can do with these is get three of them. connect the eight inputs of each one to PORTB of your microcontroller (so t...
by Mike M
Fri Jan 04, 2013 3:59 pm
Forum: The 8x8 Game System
Topic: Button Locations?
Replies: 3
Views: 6822

Re: Button Locations?

Thanks Brad.

Actually, I found a video on youtube that introduces the 8x8 Game System Kit and the following screen shot answered several of my questions. Maybe it would be helpful to other readers if you included it on your 8x8 Game System page.

Cheerful regards, Mike
by Mike M
Thu Jan 03, 2013 5:00 pm
Forum: The 8x8 Game System
Topic: Project Chronology?
Replies: 3
Views: 6596

Re: Project Chronology?

Thanks, Brad. That's what I thought since each one of those 8x8 projects seems to be a little more evolved when you put them in that order.

Cheerful regards, Mike
by Mike M
Wed Jan 02, 2013 5:26 pm
Forum: The 8x8 Game System
Topic: Project Chronology?
Replies: 3
Views: 6596

Project Chronology?

Hi Brad,

Just curious... What is the chronology of your projects, please? It seems the Great Race was first, around December 2007. Was the 8x8 Game System next and when? How about the others (Christmas Card, Christmas Ornament, Super Pixel Brothers)?

Cheerful regards, Mike
by Mike M
Mon Dec 31, 2012 4:33 pm
Forum: The 8x8 Game System
Topic: Button Locations?
Replies: 3
Views: 6822

Button Locations?

Hi Brad, May I impose to ask about button locations on your 8x8 Game System board, please? Can I assume the diamond shaped cluster of buttons on the upper left side of the board are the four arrow keys? Also, of the two pair of buttons remaining, one pair center bottom and one pair top right, which ...