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1  Community / Exhibition / Gallery / Re: My first Arduino on a PCB on: April 19, 2014, 05:39:18 pm
janost is right it really is not that difficult and you do need very much equipment to do it. I was surprised at how quickly I could "Knock one up" Here are a couple of my simple boards.
2  Community / Exhibition / Gallery / Re: My first Arduino on a PCB on: April 19, 2014, 07:26:22 am
Good job. It is a thrill when you make your first standalone board  smiley-cool  Making your own home etched PCB's next?
3  Using Arduino / LEDs and Multiplexing / Re: MAX7219 + LED Matrix Wiring? on: April 17, 2014, 07:26:19 am
TheCapn – If your matrices seem to have the same pin out as these ones
http://www.ebay.com.au/itm/5mm-LED-Dot-Matrix-ROW-ANODE-RED-2088B-8x8-60x60mm-16-pin-2-pieces-/120975133462?pt=AU_B_I_Electrical_Test_Equipment&hash=item1c2aae0b16
then try this attached circuit schematic. Also have a look at marco-c”s Parola for Arduino project
http://parola.codeplex.com/
as it’s the best Max 7219 project that there is period.
Note - The M part of the matrix pin numbers just stands for Matrix  smiley-grin
4  Using Arduino / LEDs and Multiplexing / Re: 8x8 single color led matrix and 595 shift registers on: April 17, 2014, 05:43:49 am

webaddic – here is the thread that Crossroads, God bless his heart  smiley-grin  helped me with. There are five pages of trials and tribulations and if you need any help just contact me through the forum with a post on this thread and an e-mail because notifications do not always work. Good luck and happy scrolling. Here is a link to the circuit schematic that I used as well the file is called   Matrix 2 SR ULN2803.dsn  You will have to download the circuit schematic file then install  Tinycad to view it. It’s free and quite useful. If you want some code just let me know and I will dig some out. Pedro

           


5  Using Arduino / LEDs and Multiplexing / Re: Maxim 7219 - Real and Fake compared on: April 15, 2014, 03:00:39 pm
I have used about twenty of these cheapies in Marco's Parola boards and various other scrolling LED projects and they work perfectly. No excessive heat but now that Jack has mentioned the potential for high current consumption I will have a look at that but I think it's all good. Sometimes when I have run my eight board Bigger Parola boards from the USB port only because I forgot to plug in an external power supply  smiley-grin  it still ran OK.
6  Community / Bar Sport / Re: Beginner’s Blog on: April 07, 2014, 02:37:40 pm
Glad you liked the Norton's. Unfortunately I had to sell them in early 2011, and like your houses I often wish that I still had them. Did you see the link to the POV ride thru Canbera on the bottom right of that Norton photos page. A nice little ride from Narrabundy to the top of Mt Ainsle and down. Shameless plug #2 - I have gotta stop that,
Pedro
7  Community / Bar Sport / Re: Beginner’s Blog on: April 06, 2014, 03:01:58 am
Calling Rob "Graynomad" Grey.

You asked earlier on in this thread if you could use the SyntaxHighlighter with Arduino brush to post code on your non Wordpress site. I have moved away from WP and am now trying a bit of basic home coding on my learning platform site  http://www.pedroduino.com  After that shameless plug I will now get to the point - I saw these two articles that might be of use to you

http://www.electronics-micros.com/software-hardware/publishing-arduino-sketches-to-the-web/

https://someoneknows.wordpress.com/category/technology/arduino/

On my site I have used the copy as HTML function in the IDE  and it does a reasonable but basic job aside from the slack formatting "trick" of using  non breaking spaces to indent the code.  I am going to have a play around with the suggestions in these articles and I will report back if I have any success.

Pedro.
8  Community / Exhibition / Gallery / Re: Scrolling LED matrix display - Parola for Arduino on: April 05, 2014, 10:58:24 pm
Marco I just saw all the new effects that you have added to your library and wanted to congratulate you on the great job you do with your library and the continual improvements you incorporate. I also see that you have Bill and a few of the other guys all enthused and hard at work too. Great job guys  smiley-cool
9  Community / Bar Sport / Re: Missing a mod on: April 05, 2014, 08:45:49 am
Thanks Joe, good detective work. You get a gold star  smiley-cool
10  Community / Bar Sport / Missing a mod on: April 05, 2014, 08:16:33 am
I have been a bit quite around here lately (giving you all a rest from my incessant questions   smiley-lol  ) but I noticed that Nick Gammon has not posted on here since 26 Feb and was just wondering if everything was ok
11  Community / Exhibition / Gallery / Re: Arduino Mars Rover on: March 30, 2014, 02:10:22 am
Nice job cagiva  smiley-grin
12  Using Arduino / LEDs and Multiplexing / Re: 7 Segment Display with Push Button Increment on: March 27, 2014, 07:02:21 am
Have a look at example #4 here and see if it helps you to fix your code

http://www.pedroduino.com/7-segment-led-circuits/
13  Using Arduino / LEDs and Multiplexing / Re: My Guitar Project on: March 18, 2014, 05:48:52 pm
Hey sensai, check this out

http://news.cnet.com/8301-17938_105-20073086-1/fretlight-learn-to-play-guitar-10-times-faster/

Not trying to put you off, but I had a vague recollection that I had seen a product like this not long after I initially thought of the idea many years ago. Maybe you can sus one out and possibly get a few clues.
Pedro
14  Community / Exhibition / Gallery / Re: 4x4x4 LED Cube with ATtiny85 and MAX7219 on: March 18, 2014, 07:03:27 am
Great job Paul. There has been some discussion here before on using a max7219 to control an LED cude and now you have done it   smiley-cool I know what my next project is going to be when I can tear myself away from Wordpress and css long enough to pick up a multimeter and soldering iron again. Before anyone else asks you, do you happen to have any spare pcb's that you would be willing to sell me? I realise that you have kindly provided the Eagle files but eleven boards is always overkill and my stockpile of boards from my last two projects is building up. Thanks for taking the time to document the project so well it is always great to be provided with enough information to actually build something rather than just be teased by some sketchy info that beginners haven't got a snowflakes chance in hell of following.

Pedro
15  Using Arduino / LEDs and Multiplexing / Re: My Guitar Project on: March 18, 2014, 06:35:33 am
Hi sensai.
I cannot offer you any help here as I am always getting advice from Crossroads, Nick and many other fine minds here on the forum. I just wanted to say that I am very interested in watching the progress of your project. Well before I had even heard of Arduino and micro controllers, and also being a guitarist, I had thought of this too. Stick with it the sky is the limit with this idea. Just think of all the different scales, and different positions of those scales. Then as you point out there is also the potential for indicating chord shapes, lead runs ... the mind boggles. Grumpy Mike of this forum is a smart fellow who also has a history of developing some interesting musical projects so maybe he can offer you some advice. Don't get me started on using different coloured LED's to indicate the root notes of scales, degrees of chords etc.

I for one would be very interested in seeing any photos of the construction of the fretboard LED lighting etc. Good luck and keep us posted, Pedro.

p.s. - In regard to the use of delay, which some here refer to as "the devils function"  smiley-evil  smiley-evil  smiley-twist take a look at blink without delay
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