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16  Community / Bar Sport / Re: SMD soldering ... on: October 03, 2011, 01:30:20 pm
I ran into the cap issue early on also, the best answer if you arent ready to go into full reflow oven or air, is to get a cheap 20 dollar(us) electric skillet, I got mine at target.

Do solder paste on the surface mounts that you dont want to or cant do due to positioning, heat the skillet place the board close to the element ring and watch for the reflow to take place, usually in a minute or two kill heat, wait a minute remove board, then continue on with any hand soldering you have to do.

I place all my components this way, and leave the chips, like ftdi chips, and connectors and things for hand soldering.

I could do the chips this way also, but I dont use stencils for the board, just not there yet, and fine pitch can get too much paste, causing more bridges then if I use the flux paste and hand solder method for them.

So I have a sort of two step SMD process but as they say it works for me, and it was a cheap entry level answer to the challenge.
17  Community / Bar Sport / Anyone know if there is a video archive of Open Hardware Summit speakers? on: September 29, 2011, 08:05:20 pm
Wasn't able to attend the Open Hardware Summit a few weeks ago in New York but was hoping to find video of some of the speakers, most notably
Mitch Altman's and James Bowman, actually any or all of those in the Starting up in Open Hardware hour.

From the speaker list
4:00 – 5:00: Starting up in Open Hardware

    Amanda Wozniak, Wyss Institute: Open-Sourcing the Engineering Process
    James Bowman, Gameduino: Gameduino Story: Kickstarter to product in 90 days
    Benedetta Piantella & Justin Downs, Ground Lab: Labor over Capital: how open development sustains small business and drives innovation
    Bryan Newbold, Octopart: Don’t Let Price-Breaks Break the Bank: Economics of Electronic Components for Small Buyers
    Nathan Seidle, Sparkfun: Where does transparency end?
    Mitch Altman, Cornfield Electronics: Manufacture Your Project (and make a living doing what you love)

Thanks if anyone can help.
18  Using Arduino / Microcontrollers / Re: Mega8 and Mega328 pinouts the same? on: September 29, 2011, 07:56:37 pm
Thanks bub and westfw, I had one of my early eagle designs, done way before I understood more than I do now, GRIN, and wanted to make sure I wasn't missing something hidden or commonly known or if had to change out the mega 8 for a 328 design.
19  Using Arduino / Microcontrollers / Mega8 and Mega328 pinouts the same? on: September 29, 2011, 05:41:44 pm
Correct me if Im wrong but, the ATMega8 and ATMega328 are identical pinouts, so if you use an eagle footprint for a mega 8 it should be able to use a 328 chip interchangeably, barring other differences like mem size and so on, from an arduino pin out point.
20  Community / Workshops and Events / Re: Instructables Hack It! Challenge Launched! on: September 28, 2011, 03:11:39 pm
ERROR 400: No contest found! -
ERROR 400: No contest found!
21  Community / Gigs and Collaborations / Re: Looking for a Eagle part librarian/builder and panelization help on: September 25, 2011, 11:45:47 pm
Crickets, chirp chirp
22  Community / Products and Services / Re: General guides for shields and arduino on: September 22, 2011, 04:23:09 pm

Trouble is an addressing scheme would make things more complicated and require tristate buffers on shields etc.


Not to threadjack, but would you mind expanding on this concept Graynomad. What would this do, how would you see it working?
23  Community / Gigs and Collaborations / Looking for a Eagle part librarian/builder and panelization help on: September 21, 2011, 05:07:56 pm
I have gotten myself to the point that I am pretty comfortable in eagle, after being self taught and slogging on and have number of successful prototype runs through the DorkbotPDX pcb order   I am pretty happy with my routing and schematic skills, but I don't have the part building down and as my parts palette has expanded I keep running into difficulty in finding libraries for the new pieces I want to work with.

So I am looking for a collaborator or partner in crime who likes to build parts in eagle from data sheets as much as I like designing new boards.

In addition I am moving forward on many of my prototypes and as such need to start producing them in larger quantities, so I am looking for someone, perhaps or ideally the same as the eagle part builder, who can run me through the ropes or help with prepping and panelizing my designs for running through different PCB boardhouses  and styles such as 155 sq inch panel or other suggested pcb houses.

Thanks for any info and help in advance, and I hope there is someone that can help balance out my skills to make a good team.

24  Community / Exhibition / Gallery / Re: New Arduino Logo Vector (Photoshop PSD Shape Layer) on: September 21, 2011, 12:25:08 pm

We are in the process of releasing a page that explains how to use the logo for the benefit of the community making sure whoever downloads it understands what are the rules.

I haven't found that page... As I am giving an Arduino talk next week during a conference in SFO, I'd like to know if I am allowed to use the Arduino logo on my slides?


Just out of curiosity, if you don't mind me asking, what conference are you giving your Arduino talk at?

25  Community / Gigs and Collaborations / Re: Arduino Experts - Arduino Developer job board on: September 08, 2011, 03:28:05 pm
If the owner of the Android chose to enforce they could kill the domain for just having the trademark in it.

I once had a domain and website called which was a gift to my mother in law, who has one of he most unique godzilla collections in the world.

With in about 30 days I received a cease and desist letter asserting trademark godzilla from toho, the letter has been added to the collection, but the up shot was I made a claim under a similar stance.

It was ruled against in the dispute and it was later removed with an official takedown.

The Arduino team have shown that they will defend the Arduino trademark in this capacity.
26  Community / Gigs and Collaborations / Re: Arduino Experts - Arduino Developer job board on: September 08, 2011, 01:06:14 pm
I dont expect it to be around for long, as it misuses the Arduino name in the url and site design.
27  Development / Other Hardware Development / Re: Replacing auto power switch with manual, am I missing something? on: August 30, 2011, 08:23:29 pm
Thanks lefty, it was to limit draw of the ftdi chip from battery when on external, so you hit it dead on. Was just looking to see if there was any simple leaks I was missing, such as the "backdooring" you mentioned.
28  Using Arduino / General Electronics / Re: Component in Eagle on: August 30, 2011, 08:17:54 pm
Sort of a threadjack, does anyone know if there a 2.54 pitch version of this type of screw terminal, that would fit perfboard.
29  Development / Other Hardware Development / Replacing auto power switch with manual, am I missing something? on: August 30, 2011, 08:01:14 pm
Making an arduino clone circuit which drops the auto power select circuit and replaces it with a simple SPDT switch.

Now the question is about switching powering pre FTDI chip or post FTDI chip, in other words is there any reason that anyone
can think of that the external power circuit needs to power the FTDI chip, assuming the FTDI chip will always be powered by the USB when it is plugged in my circuit.

The switch only decides whether the ATMEGA is powered by external power jack or USB.

30  Using Arduino / Project Guidance / Re: Pin 13 led circuit conflicts? on: August 12, 2011, 08:14:55 pm
Couldn't think of a clever way to spot floating pins though, that would be useful...

Well thinking about it some more I suspect a fet(s) input circuit could be designed and drive a tri-color led, led RED = high, GREEN = low, Yellow = floating.


That was my first thought was tri color for "normal" pins, but how to show pwm state?

BTW Clever is just a little over my head,rudimentary I got down, clever, thats a jump.GRIN
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