shopping - kickstarter stylee: digistump

[Fee Plumley]

Hey all,

Tamsyn, Pix and I are getting some of these. If anyone else is interested just let me know how many you want & I'll add yours to the order.

http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board?ref=category

Ta, f.

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Fee Plumley

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[Ken]

A question from someone who hasn't dipped toes in the Arduino pool (yet)...
Can these things power down to microamps current-draw, then power up a determined time later, do something, then go to sleep again?

Ken.

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[Fee Plumley]

i've barely glanced toward the shimmering water so i've got no idea. Pix is either in or en route to tasmania by now but i'm sure he'll know :)

[Jamie Mackenzie]

Put me down for 2 please :)

Some info on sleeping an Arduino for long term use:

http://interface.khm.de/index.php/lab/experiments/sleep_watchdog_battery/

Although it's more to do with playing around with AVRs than Arduino in
my opinion.

[Fee Plumley]

done! thanks jamie.

Tally (for organised slackness purposes):

Fee - 3

Tamsyn - 3

Pix - 2

Jamie - 2

= 10

[Steve Roehrs]

Can I take 3  please? Maybe more if you need a little help to get into the next order bracket.

 

thanks,

Steve

[Paul Schulz]

+2 for me

[Scott B]

I'm happy to take a couple also if it's not too late.

[Jonathan Wheare]

I'll take two as well, Fee.

I think these devices may be useful for low power applications since
they do not have an external FTDI. Bypassing the voltage regulator
would mean the only device on the board drawing power should be the uC.
The AVR chip I'm looking at (ATMega 16u4 as used in the leonardo) also
has the facility to shutdown IO sections that are not in use - further
reducing current draw.

J.

[Fee Plumley]

Great, thanks all.

I'll wait til tomorrow in case anyone else wants to wade in. You can always change your pledge anyway, but I'd rather get it done than forget about it.

Updated Tally (for organised slackness purposes):

Fee - 3  (poss more)

Tamsyn - 3

Pix - 2

Jamie - 2

Steve - 3 (poss more)

Paul - 2

Scott - 2

Jonathan - 2

= 19 

[Tim Aslat]

In the immortal words of Fee Plumley on 08/15/12 11:59:

> Hey all,
>
> Tamsyn, Pix and I are getting some of these. If anyone else is
> interested just let me know how many you want & I'll add yours to the order.
>
> http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board?ref=category

put me down for 3

Cheers

Tim

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[Thomas Sprinkmeier]

On 15 August 2012 12:05, Ken <k...@waggies.net> wrote:

> A question from someone who hasn't dipped toes in the Arduino pool (yet)...
> Can these things power down to microamps current-draw, then power up a
> determined time later, do something, then go to sleep again?

IIRC this came up at the arduino miniconf.

From (hazy) memory
- the chip can do it
- the wiring library can't (i.e. you'd have to add low level code)
- most boards aren't designed for ultra-low current when idle so you
may not gain much

Oh, and +2 for me please!

Thomas

> Ken.
>
>
>
> On 15 August 2012 11:59, Fee Plumley <f...@technoevangelist.net> wrote:
>>
>> Hey all,
>>
>> Tamsyn, Pix and I are getting some of these. If anyone else is interested
>> just let me know how many you want & I'll add yours to the order.
>>
>>
>> http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board?ref=category
>>
>> Ta, f.
>>
>>
>>
>> --
>>
>> Fee Plumley
>>
>> >> CROWDFUNDING SUCCESSFUL! reallybigroadtrip can get a bus! <<
>>
>> Digital Nomad at http://reallybigroadtrip.com - making & sharing geek arts
>> across Australia.
>> Head Geek at http://technoevangelist.net - spreading the word of geek
>> since 1996.
>>
>> Chat via twitter, facebook or sign up to my newsletter.

--

Quis custodiet ipsos custodes?

[Fee Plumley]

cool, popular little things ain't they?

Updated Tally (for organised slackness purposes):

Fee - 3  (poss more)

Tamsyn - 3

Pix - 2

Jamie - 2

Steve - 3 (poss more)

Paul - 2

Scott - 2

Jonathan - 2

Tim - 3

Thomas - 2

= 24

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[Tamsyn Michael]

Cool!

25 Digisparks is pretty much the best value for overseas buyers at $215 ($205 + $10 postage) - That adds up to $8.60 each for those wondering.  :)

[Tamsyn Michael]

On Wed, Aug 15, 2012 at 4:24 PM, Tamsyn Michael <tamsyn.j...@gmail.com> wrote:

Cool!

25 Digisparks is pretty much the best value for overseas buyers at $215 ($205 + $10 postage) - That adds up to $8.60 each for those wondering.  :)

PS - Unless of course we can get an order in for 63...?

[Damien P]

On Wednesday, August 15, 2012 12:05:02 PM UTC+9:30, Ken wrote:

Can these things power down to microamps current-draw, then power up a determined time later, do something, then go to sleep again?

AVRs can draw less than 1 µA in the powersave modes, but require certain interrupts to wake them up (timer2, watchdog, pin change).  Although you can register interrupts with the Arduino libraries, I don’t think it has a nice way to configure the sleep mode.  I suspect the Arduino millis() function uses a busy-wait loop, so you won’t save any power with that.  If you can run the AVR at 1MHz and convince the Arduino libraries to produce code for that clock frequency, the datasheet says the AVR should draw 0.5mA.

[Tamsyn Michael]

Hey guys, good news:
http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board/posts

There's been an update now that they've reached their goals.  If you are holding off because you think we've hit our goal, then let it be known that we can add a few more digisparks to our order for $8 each.

Also (even if you're not going to get the digispark - depending on numbers) there are a bunch of very cheap shields.  Woo!

[Fee Plumley]

wicked, ta tamsyn. i'll put an order in this arvo - add yours here if you want one and i'll sort it out.

thanks damien for extra deets.

ta, f.

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[Steven Pickles]

Oh, can I have a couple of through-hole shields with my digisparks?

pix

[Steve Roehrs]

me too! :)

[Fee Plumley]

ohhhhk...

anyone else? (was that obvious on their page? i missed that...)

[Jamie Mackenzie]

Can I add 1 Infrared shield PCB and 1 RGB shield PCB to my order please :)

[Tamsyn Michael]

Only just been added in the latest update Fee:
http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board/posts

I am going to get 2 through hole pcbs (@ $1.75 each (unless they hit the next stretch goal @ 75 grand, which they probably will - in which case they'll be $1.25)
+ a RGB shield kit @ $2

So far I owe you $31.30 ($8.60 x 3 + $5.50 for the shields).

[Tamsyn Michael]

Get the kit Jamie - it's cheaper than sourcing the RGB LEDs separately - unless you already have one?

[Thomas Sprinkmeier]

Please add 2 blinkenlights kits please to my 2 requested digisparks.

I love the 'low power' feature, a marked area on the PCB to mutilate
with a Stanley knife to disable the LED's and save power.

Thomas

[Jamie Mackenzie]

Hmmm, good call Tamsyn.

Make mine an RGB shield kit. :)

[Paul Schulz]

Paul Schulz (total order for me)
- 2x Digisparc
Shields PCBs
- 2x Though hole dev shield
- 2x Boost Shield
Shield Kits
- 2x RGB Kit (Blinking LED)

Thanks for doing this.

[Steven Pickles]

ooh, can I add a boost shield too?

i can imagine keeping track of this is getting pretty crazy ;)

pix

[Ken]

Couldn't an editable list of names and parts be created on the hackerspace blog/website, with a cutoff date ?

Ken (not ordering any, but watching with a smile)

[Damien P]

On Thursday, August 16, 2012 10:47:41 AM UTC+9:30, fee wrote:

thanks damien for extra deets.

They don't go into much about their Ardiuno code.  I'm guessing this board runs V-USB, which is a firmware-only USB library for AVRs.  For the Tiny85, the clock runs at 16.5MHz instead of 16MHz, so they must have made some changes.  They might have added some extra code to put the chip in low power mode.

[Jamie Mackenzie]

Thought I'd take up Ken's suggestion and make a shared Gdoc spreadsheet that everybody can put their request into:

https://docs.google.com/spreadsheet/ccc?key=0AlJ7-zqeY6_UdG1JX3ZxTE12MUhLUDUwT2tfVXVWOHc#gid=0 

Hopefully I set it up right and you can all access it.

When you open it, you should be able to figure out what to do :)

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[Paul Schulz]

Worked a treat! Paul:2-2-0-2-2

[Tamsyn Michael]

Awesome Jamie.  Only thing I noticed is that the first 25 Digisparcs are going to be $8.60 each due to postage.

[Jamie Mackenzie]

Yeh, I thought that might be the case.  How about this...

If num_digisparc < 25:

    Add 60c to everybody's cost

else:

    Ammend the unit cost of the digisparc to spread the cost evenly (once you know the total number of digisparcs)

[Tamsyn Michael]

That sounds fair.  Your way makes it easier for poor Fee anyway, who probably didn't know what she was letting herself in for.  The shields are a new thing - only just added.  If only they weren't so damn cheap!

[Jamie Mackenzie]

I went through the email trail and added people's requests to the gdoc sheet.

We were at 26 digisparcs so I changed their individual price to $8.60.  Whoever makes the order can claim the extra 60c as their prize :)

Have not heard any more from Jon or Tim so they may still wish to add some shields to their order.

[Tamsyn Michael]

Especially now the shields are 50c cheaper each.  Woot!  Digistump have hit their $75 000 push goal (actually 76 200 due to the price of the shields dropping back).

:)

[Fee Plumley]

brilliant, Jamie you rule!
I got distracted yesterday but I'll add the others from the thread & then order.
x

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Fee Plumley

>> CROWDFUNDING SUCCESSFUL! reallybigroadtrip can get a bus!<<

Head Geek at http://technoevangelist.net -spreading the word of geek since 1996. Digital Nomad at http://reallybigroadtrip.com -making & sharing geek arts

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[Tamsyn Michael]

Pretty sure he's added them already Fee.  Tim, and Jon, want any add-ons?  Quick!

[Jonathan Wheare]

OK, I've added two shields to my entry.

J.

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[Fee Plumley]

shopping update -- as attached.

25 digisparks ordered via kickstarter pledge.

all other bits will be added when they send the link to do so.

will work out payments then.

big props to jamie for making my life a whackload easier with his spreadsheet :)

sheepish grin to simon for trying to remind me that these things are cute and prolly not even vaguely as good as arduino... but i went for two anyway.

bandwagons-for-the-win ;P

xf

[Fee Plumley]

oh for crying out loud: more options.

http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board/posts/289122

i think they're treating to us to "death by choices".

also since I don't know the differencee between shields, you may want to make pedantically sure that the extra you want in jamie's spreadsheet has exactly the same name as that listed in the kickstarter page.

I take no responsibility for misnamed orders!

cheers all xf

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Fee Plumley

>> CROWDFUNDING SUCCESSFUL! reallybigroadtrip can get a bus! <<

Digital Nomad at http://reallybigroadtrip.com - making & sharing geek arts across Australia.

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[Jamie Mackenzie]

I have updated the spreadsheet to add some of the kits and make things a little clearer (PCB shields on the left, kit shields to the right) but if you want a shield that's not there you'll have to add it.  Don't forget to update the total column so the costs update ;)

[Fee Plumley]

again, you rock!
thank you!
x

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Fee Plumley

>> CROWDFUNDING SUCCESSFUL! reallybigroadtrip can get a bus!<<

Head Geek at http://technoevangelist.net -spreading the word of geek since 1996. Digital Nomad at http://reallybigroadtrip.com -making & sharing geek arts

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