Minimus 32 USB AVR

191 views
Skip to first unread message

Kimball Johnson

unread,
Sep 6, 2012, 1:00:24 PM9/6/12
to hac...@googlegroups.com, london-h...@googlegroups.com, prest...@googlegroups.com
Hi All,

A while ago, Chris McClelland placed an order for some Minimus USB dev
boards. Now Bob from Hac:Man and I were talking that it might be time
to make another order.

I contacted Modtraders and they have low stock of the 16k Flash
version, but recomended the 32k version:
http://www.modtraders.co.uk/minimus-32-avr-usb-development-board.html

Do people want to make an order, if we get enough then it will be
£4.00 each or less.

I have crossposted, this - LHS members please fill in:
http://wiki.london.hackspace.org.uk/view/Minimus, Preston members
please email me off list and Hac:Man members i'll post the wiki link
when I have access to edit the wiki.

I will collate the orders and then get then confirm the price before
ordering. If you put your name down twice you will have to pay for
them all!

Kimball

Kimball Johnson

unread,
Sep 6, 2012, 1:53:27 PM9/6/12
to Alan Burlison, hac...@googlegroups.com, london-h...@googlegroups.com, prest...@googlegroups.com
> One question - how do you program them on Linux? The webpage mentions FLIP,
> which seems to be a Java app, plus some JNI code, and it does seem to be
> available for Linux. I actually want it on Solaris (I'm strange that way)
> but I can probably hack it to work for me if the Linux one works.

dfu-programmer, http://dfu-programmer.sourceforge.net


> Can we commit to a total amount of money rather than a quantity? I see at
> 100+ units they are £4.00 versus £9 in single units, so if I pledge £40 I'd
> get 10 if the order goes over 100 and correspondingly fewer if it doesn't.

Yes, although i'd prefer if most people didn't, so it is easier to
give numbers to the supplier for greater discounts.

>
> Also, I see they have some nice cases for them:
> http://www.modtraders.co.uk/minimus-case-by-xecuter-crystal.html
> Would anyone else want a couple of those as well?

Not personally - add to wiki page if you do want them though, and I
will ask about prices.

Kimball.

tom

unread,
Sep 7, 2012, 4:29:18 AM9/7/12
to london-h...@googlegroups.com, Alan Burlison, hac...@googlegroups.com, prest...@googlegroups.com
that seems a little expensive, didnt we get them for 2 quid each last time?

Kimball Johnson

unread,
Sep 7, 2012, 4:32:32 AM9/7/12
to london-h...@googlegroups.com
On 7 September 2012 09:29, tom <bollo...@gmail.com> wrote:
> that seems a little expensive, didnt we get them for 2 quid each last time?

No, we have never ordered them before. These are the 32k version, as
the 16k version is no longer made.

Kimball

Ken Boak

unread,
Sep 7, 2012, 4:41:53 AM9/7/12
to london-h...@googlegroups.com
Kimball,

Make sure you know what you are buying in terms of SRAM

The website says that they are based on the ATmega32U2 - this only has 1K of SRAM - which you may find a limitation.

Ideally you should use the ATmega32U4 (like the Arduino Leonardo, the Hackspace Tilda badge) which have 2K of SRAM.



Ken




Kimball Johnson

unread,
Sep 7, 2012, 4:45:02 AM9/7/12
to london-h...@googlegroups.com
On 7 September 2012 09:41, Ken Boak <ken....@gmail.com> wrote:
> Kimball,
>
> Make sure you know what you are buying in terms of SRAM
>
> The website says that they are based on the ATmega32U2 - this only has 1K of
> SRAM - which you may find a limitation.

The ones we had before are based on the AT90USB162 which only has
512Bytes of SRAM, so double what we have before.

>
> Ideally you should use the ATmega32U4 (like the Arduino Leonardo, the
> Hackspace Tilda badge) which have 2K of SRAM.

Would be lovely, but we would need to design and manufacture boards,
which I don't think we could do for £4 a pop.

Kimball

Mat Burnham

unread,
Sep 8, 2012, 2:56:33 PM9/8/12
to london-h...@googlegroups.com
Sorry to send this back to the list, but mail direct to Kimball bounced.

Northackton would like to tag along on this order. I've created a wiki page to collate at http://northackton.stdin.co.uk/wiki/Minimus. What's the deadline?

Cheers,

Mat

Kimball Johnson

unread,
Sep 10, 2012, 6:29:59 AM9/10/12
to hac...@googlegroups.com, london-h...@googlegroups.com, prest...@googlegroups.com
>
> I contacted Modtraders and they have low stock of the 16k Flash
> version, but recomended the 32k version:
> http://www.modtraders.co.uk/minimus-32-avr-usb-development-board.html
>
> Do people want to make an order, if we get enough then it will be
> £4.00 each or less.

I have now been confirmed a price of £3 each for an order over 100
pieces (we currently have 108)

I will keep the order open until Thursday, making the order on Friday Morning.

Kimball

Kimball Johnson

unread,
Sep 20, 2012, 12:10:32 PM9/20/12
to london-h...@googlegroups.com
Those of you that ordered these, they are in the quiet room on the
left hand side as you enter on top of a silver box. There is also a
box for Reading hackspace, please don't touch them.

They are all packaged in pairs, so if you ordered an odd number you
need to split a pack.

Please take them away soon, and those of you that have not payed me,
please so so asap.

Thanks,

Kimball

Jasper Wallace

unread,
Oct 8, 2012, 5:35:37 PM10/8/12
to london-h...@googlegroups.com
On Thu, 20 Sep 2012, Kimball Johnson wrote:

> Those of you that ordered these, they are in the quiet room on the
> left hand side as you enter on top of a silver box. There is also a
> box for Reading hackspace, please don't touch them.
>
> They are all packaged in pairs, so if you ordered an odd number you
> need to split a pack.
>
> Please take them away soon, and those of you that have not payed me,
> please so so asap.

There are 9 left now (I think there were 13 a few days ago).

Please pick yours up soon if you've not done so!

--
[http://pointless.net/] [0x2ECA0975]

SP00kY

unread,
Oct 8, 2012, 5:59:28 PM10/8/12
to london-h...@googlegroups.com
Thanks for the heads up. I missed the post about these arriving.

I ordered twelve of them (ahem) so I guess I'll grab the remainder on Tuesday or Wednesday.

Kimball Johnson

unread,
Oct 8, 2012, 6:19:04 PM10/8/12
to london-h...@googlegroups.com
Could whomever took too many please return them, thank you.

Kimball

SP00kY

unread,
Oct 26, 2012, 3:09:30 PM10/26/12
to london-h...@googlegroups.com
I've finally dropped in to pick these up. As previously stated there were only nine remaining in the box. 

Sorry for taking so long and thanks for ordering these!

Jim MacArthur

unread,
Oct 30, 2012, 8:45:14 AM10/30/12
to london-h...@googlegroups.com
Does anyone have a surplus minimus I could buy? I've just thought of a
project which could use one, and I thought I'd ask to see if I can
avoid the full price and postage.

Jim

Tim Reynolds

unread,
Oct 30, 2012, 8:57:05 AM10/30/12
to london-h...@googlegroups.com
Yes, £3 to you sir

Jim MacArthur

unread,
Oct 30, 2012, 8:58:36 AM10/30/12
to london-h...@googlegroups.com
Argh - Charles offered me one on IRC just after I posted that. Thanks
for the offer though.

Jim

Tim Reynolds

unread,
Oct 30, 2012, 9:03:31 AM10/30/12
to london-h...@googlegroups.com
No worries!
Reply all
Reply to author
Forward
0 new messages