Search found 21 matches

by bwooce
Wed Jul 02, 2014 8:42 am
Forum: Dot Matrix Display
Topic: New beta release "DMD2" Library
Replies: 107
Views: 62289

Re: New beta release "DMD2" Library

(BTW, sorry for the lack of updates on the DMD2 front. I have been working on it, but there are a few annoying bugs that I have yet to iron out.) I am still working through the bitwise logic for my additions too. You can see my progress on my fork at github.com/Bwooce/DMD2/ I'll try and polish it o...
by bwooce
Fri May 30, 2014 3:44 am
Forum: Product / Device Ideas
Topic: Control circuit to switch an time a 240 volts AC contactor
Replies: 7
Views: 7135

Re: Control circuit to switch an time a 240 volts AC contact

Hey Les, I'm sure you'll take to programming like a duck to water then. Before going too far with the physical plans, how about picking up an Eleven, and maybe some more LEDs and current limited resistors (or an Experimenters kit http://www.freetronics.com/collections/kits/products/experimenters-kit...
by bwooce
Thu May 29, 2014 1:50 am
Forum: Product / Device Ideas
Topic: Control circuit to switch an time a 240 volts AC contactor
Replies: 7
Views: 7135

Re: Control circuit to switch an time a 240 volts AC contact

Sounds great. On the hardware front: To keep it simple, you need an arduino of some kind (maybe an Eleven from Freetronics), your keypad, some LEDs, and a few other things. I'd suggest some pins to plug into the arduino sockets while you're getting this right too - you can solder it all together onc...
by bwooce
Wed May 28, 2014 5:09 am
Forum: Product / Device Ideas
Topic: Control circuit to switch an time a 240 volts AC contactor
Replies: 7
Views: 7135

Re: Control circuit to switch an time a 240 volts AC contact

Hey bear, Sparkies are always welcome. An arduino can definitely do this for you, but can I restate what I think you're asking for? You want to create a device that will have a numeric keypad. That keypad will in turn control a contactor to switch AC current to a device like an oven. So some questio...
by bwooce
Tue May 27, 2014 6:29 am
Forum: Dot Matrix Display
Topic: New beta release "DMD2" Library
Replies: 107
Views: 62289

Re: New beta release "DMD2" Library

I've moved my scoreboard to DMD2, and it is much faster and cleaner. The tweaks you've done to get the integrated interrupt refresh working fast are great -- everything I did on my own with DMD1 ended in a locked up display so it's great to just have it work out of the box. The one thing I'm missing...
by bwooce
Mon Jan 13, 2014 1:27 am
Forum: Dot Matrix Display
Topic: Project housing ideas
Replies: 9
Views: 4590

Re: Project housing ideas

Yes it's a challenge, re-purpose an existing enclosure if at all possible. My soccer scoreboard uses 50x25mm rectangular Alu tubing (from Bunnings) as border/framing, with plywood on the back and perspex on the front and bolts through the framing to secure the sandwich together. The perspex pops off...
by bwooce
Sat Aug 17, 2013 1:39 pm
Forum: Dot Matrix Display
Topic: Other Fonts
Replies: 7
Views: 5778

Re: Other Fonts

These are the nicest numbers I could find. DMD can reuse the same format as LCD shields use, within reason.

https://github.com/Bwooce/dmd_scoreboar ... nums7x15.h
by bwooce
Wed Mar 20, 2013 3:35 am
Forum: Eleven
Topic: Delays and Interrupts
Replies: 5
Views: 4059

Re: Delays and Interrupts

For a system of your complexity you can implement a simple thing with a fancy name -- a Finite State Machine. In your case, a counter and a switch statement would be enough e.g. something like: void loop() { switch (counter) { case 0: Do first thing; counter = counter + 1; (or better, counter++) bre...
by bwooce
Tue Jan 08, 2013 1:44 am
Forum: Dot Matrix Display
Topic: Dot Matrix Display
Replies: 49
Views: 36095

Re: Dot Matrix Display

Makanaki wrote:If someone is interested I got a schematic of the DMD panel in Word format so I can share without problem.
Yes please!
by bwooce
Mon Sep 24, 2012 1:12 pm
Forum: Dot Matrix Display
Topic: Portable scoreboard...
Replies: 0
Views: 1995

Portable scoreboard...

It is amusing that we're all building variants of the same thing. We should definitely build some more common software features. Here's mine in a state of pre-construction. It's 3 DMDs (2 Red for the score, 1 yellow countdown timer). The yellow DMD is a different depth (/construction) to the reds. I...