Digispark Wednesday

[Todd Willey]

My Digisparks arrived
(http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board)

I have 12 of these bad boys that I'll be soldering the header pins on
and testing during the Wednesday open hours. Feel free to join me.
This would be a great into to soldering, so come out and invite a
friend.

We'll go through the Arduino IDE and get some blinking lights for
anyone that hasn't seen and Arduino in action before.

[Chris Stieha]

Those look cool.  I like the attiny85.  And I want to see how they did USB (I assume vUSB?).

Too bad they didn't make it so that you could use all male headers and plug it directly into a breadboard.  You would have to use a mix of male and female headers to do that or not use the 5V GND and Vin pins.

I'll help you solder some headers on if you want to send them to me.  I'll send them back, I swear ;)

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[Andrew Wyllie]

Sorry, I know you guys have been talking about open hours quite a bit
lately, but I can't
seem to find an email that actually states what the open hours are.

So, depending on the time you'll be there, I may (or may not) be able to
make it...

thanks,
Andrew

[Nicholas Warner]

It's when we're open! As in, there'll be someone there to let you in and help you if you have questions. cool huh?!

here's the calendar of times and who'll be there: http://is.gd/Qjba0N

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347-7GNARLY (347-746-2759)

[Jerome Hollon]

What's the advantages of the digisparks over the arduino minis (other than cost)?

https://www.sparkfun.com/products/11113

[Chris Stieha]

From a quick glance (that may be wrong), the arduino mini requires an FTDI board or cable (or another arduino) to be programmed, whereas the digispark plugs directly into USB to be programmed.  The digispark doesn't work with all the arduino libraries and requires other libraries to work (see I2C comments on http://digistump.com/wiki/digispark/tutorials/connecting).  The digispark also appears to be missing some safety circuitry - the precautions on the website are interesting.

The atmega328 (on the arduino mini) is different than the attiny85 (digispark), although the differences may not really matter for most things.


MIT media lab/high-low tech has also been doing some stuff with the attiny85: http://hlt.media.mit.edu/?p=1695

[Cory Stargel]

Ooh this looks fun, might stop by just to check them out.  I love blinking lights ;-)

[Todd Willey]

Thanks for the MIT link, Chris. I tried ISP programming from an
Arduino to a atemega128 but had some power issues. I'm stoked about
the direct plugin interface (though I did have to sand one of my
digisparks to get it to fit in a usb port).

I've got a couple of other compatibles that use FTDI breakout boards,
and I think that limits their portability. I've not yet done anything
using more than 5 pins, so I think these are great for my prototyping,
and cheap enough that if I (or my kid) break them, or I leave them in
a project or gift them, I won't feel a substantial loss.

-todd[1]

[Dave Hempy]

I've parked a nice Tenma soldering station at the space. It's on a shelf near the stereo. Help yourself!

-dave

[Cory Stargel]

....and if you get cold, I left a portable space heater in between the couches ;-)  Or you can hold the wrong end of the soldering iron