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16  General Category / General Discussion / Dynamic Shape Display on: January 02, 2014, 08:58:53 am


Possible to build one (with less "pixels") to start with?

No kinect, just an arduino and lots and lots of servos. smiley

How would you do it? smiley
17  Topics / Interactive Art / Re: fade analog video on: December 11, 2013, 04:10:54 am
Describes why (composite) video is more complicated than audio.
http://baec.tripod.com/AUGUST01/video.htm

Simpler circuit which uses an IC
http://www.simplecircuitdiagram.com/2009/11/16/video-fader-circuit/

Replace 10k pot with a digital one like this.
http://proto-pic.co.uk/digital-potentiometer-10k/?gclid=CNSA3fbqp7sCFWmWtAodQkEAnA
18  Topics / Product Design / Re: Arduino Dial Up Modem shield on: December 05, 2013, 05:42:34 pm
That's a concept picture and not available as far as I know.

Maybe if enough people want this (and why not?) Adafruit could easily produce something like this.
19  Topics / Interactive Art / Re: How to access/trigger specific parts of a single video file? +video hardware? on: December 03, 2013, 07:40:07 pm
Starting point for this project I would guess, is a raspberry pi with suitable video player software that can be controlled by a (python?) script.

Depending on what type of control inputs you have, you could use the GPIO pins on the Pi or a separate arduino board.

Asking this question on the Pi forum is the best way to do this.
20  General Category / General Discussion / Re: What after the bread board on: October 29, 2013, 07:21:55 pm
If you just want an easy way to transfer your breadboard design to something more permanent, then this is for you.
http://proto-pic.co.uk/adafruit-perma-proto-full-sized-breadboard-pcb-3-pack/

You will need a basic arduino circuit like this
http://www.instructables.com/id/Perfboard-Hackduino-Arduino-compatible-circuit/
to start with, then add the other components from your breadboard.

If you want a "proper" PCB for your project, then you'd need to learn eaglecad or kicad design software.

Another alternative is http://fritzing.org/ where you can have a PCB produced from the breadboard design software.

21  Topics / Education and Teaching / Re: What is the best way for intermediate arduino users to raise our skill level? on: October 26, 2013, 02:28:05 am
Maybe this?
http://www.amazon.co.uk/Programming-Arduino-Next-Steps-Sketches/dp/0071830251
22  Community / Exhibition / Gallery / Re: Cloud Lamp showing a storm on: October 22, 2013, 07:08:20 pm
Nice, but could you use cotton wool instead of that other type of stuffing which I've never heard of?
23  Topics / Product Design / Re: Strange resistor names in Eagle on: July 29, 2013, 08:29:31 am
Starting to learn KiCad.
The clearest (step by step tutorial) I`ve found is here
http://store.curiousinventor.com/guides/kicad/

If you are thinking of selling your circuit boards in the future and don`t want to spend money on software, use Kicad.
Warning long video! Part1 45m, part 2 over an hour!


I also watched this

and was quite impressed.

Diptrace also has a free version (not for profit) version, no size limit but 300 pin limit.

24  Community / Exhibition / Gallery / Re: Amiga MOD Player on Arduino Uno on: July 22, 2013, 04:57:16 am
Portable Amiga Mod Player! smiley-grin

I still have a collection of my fav amiga mods stored away in the depths of this hard drive somewhere. smiley
25  Topics / Product Design / Re: Arduino Dial Up Modem shield on: July 14, 2013, 04:54:20 am
Arduino Answering Machine/Caller ID - Cold caller blocker, take my money already. smiley-grin
26  General Category / General Discussion / Re: Large 7 Segment LCD Display? on: July 07, 2013, 05:21:47 pm
Yes, that's the total width of the display, each number is about 20mm high.
27  General Category / General Discussion / Large 7 Segment LCD Display? on: July 07, 2013, 02:44:10 pm
Like this? (6" Display)
http://www.ainslie.org.uk/callerid/pics/boxes/bt_cd-2k.gif
The photo does not do it justice, it's a nice large display.

I guess its possible using custom characters on a "normal" 4 line display?
28  Using Arduino / General Electronics / Re: Most common (single rail) Op-Amp used with Arduino? on: July 02, 2013, 05:10:45 pm
Thanks for the replies.

I'm looking at this circuit (my application has nothing to do with doors though) smiley
http://www.npeducations.com/2013/01/laser-light-based-door-opener.html
The op amp in this case is used as comparator, I could probably do away with this and feed the output of the transistor to the arduino and do the same in software?
29  Using Arduino / General Electronics / Most common (single rail) Op-Amp used with Arduino? on: July 02, 2013, 03:26:12 am
LM324, LM358, other?

It will be for a photodiode amp circuit.

Thanks.

30  Community / Gigs and Collaborations / Re: Looking for work! on: June 15, 2013, 02:07:24 pm
Is not the MakerBot platform arduino based?, I think they made quite a bit of money out of that.
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