[Cyborg] Fwd: [Noisebridge-discuss] Re: March Digikey Bulk Order

daniela Steinsapir danielast at gmail.com
Mon Mar 23 13:04:33 PDT 2009


 is anybody interested in magnetic sensors? I would get like to include
some.

 I haven't play with them yet, anybody has experience?

 what type of sensors NB has?

D

On Mon, Mar 23, 2009 at 12:53 PM, Rachel McConnell <rachel at xtreme.com>wrote:

> I'm gonna be at NB tonight and will at least work out what I want from
> digikey and add it to the order page.  Lamont, I don't really understand
> this well enough to tease out a set of things to order but maybe someone
> else tonight can do so, or help me with it.
>
> As you probably saw, Jason's going to do the bulk order tomorrow, not
> today, so there's a bit of time to get ourselves sorted.
>
> R
>
> Lamont Lucas wrote:
> >
> > Please add one more to the order for me, and I'll work with you on
> > surface mounting the thing.  I have a hot-air rework station that will
> > be useful for undoing whatever we mess up.  I've used a toaster oven for
> > SMT reflow, but I'd like to do this with a regular hot-plate, as I think
> > that method is superior.
> >
> > We'll need to either order an adapter PCB for the PLLC-20 (aka LPCC-20),
> > or make a custom one.  The board I have from sparkfun for the Honeywell
> > HMC1052L is a 4 pin-per-side 16-pin-LLC.  I'm capable of designing and
> > ordering the adapter board, but I wouldn't get a chance to do it till
> > tuesday night at the earliest, and I'm out of town for a week starting
> > friday.
> >
> > This solderless socket might help with the prototyping:
> > http://www.chiptool.net/adapter/plcc-1.htm
> >
> > That 1052L chip, by the way, I spent the weekend trying to use.  Unlike
> > the HMC5843, the HMC1052L requires a 400 mA pulse for 2 uS to clear out
> > any lingering magnetic fields, which requires an h-bridge or at least a
> > totem-configured pair of FETs.  I started wiring it up, but after I've
> > added an h-bridge chip, 2 capacitors, two resistors etc, the resulting
> > cost and bulk make me think that I should have just started with the $19
> > 5843, rather than "saving" via the $8.50 1052L.
> >
> > That BUB board looks nice, although I'm still super happy with my FTDI
> > cable, just for compactness's sake.
> >
> > Adam Skory wrote:
> >> I want to order two of the HMC5843 3-axis compass chips in the hope
> >> that someone will help me figure out how to surface mount the damned
> >> things.
> >>
> >> (
> >>
> http://parts.digikey.com/1/parts/1599656-sensor-magnetic-3-axis-20-lcc-hm=
c5843.html
> >>
> >> )
> >>
> >> Anyone else want some? It would be good to add them to today's digikey
> >> bulk order.
> >>
> >> Also, I'm looking at getting some RBBB kits and a couple USB BUB
> >> boards, separately from the digikey order, but it would good also to
> >> know how many of those we should get.
> >>
> >> ( http://moderndevice.com/RBBB_revB.shtml and
> >> http://www.moderndevice.com/connect.shtml )
> >>
> >> -Skory
> >>
> >>
> >> ---------- Forwarded message ----------
> >> From: miloh <froggytoad at gmail.com>
> >> Date: Mon, Mar 23, 2009 at 10:52 AM
> >> Subject: [Noisebridge-discuss] Re: March Digikey Bulk Order
> >> To: noisebridge-discuss at lists.noisebridge.net
> >>
> >>
> >> RE:  Digikey bulk order
> >>
> >> Correction:  didn't mean to suggest one needs to find dr_jesus on IRC,
> >> the directions for being included are posted on the wiki:
> >> https://www.noisebridge.net/wiki/Digikey_Bulk_Order
> >>
> >>
> >>
> >>
> >> On Mon, Mar 23, 2009 at 9:40 AM, miloh <froggytoad at gmail.com> wrote:
> >>
> >>> Friendly reminder: the March Digikey is going out by the afternoon,
> >>> contact dr_jesus in IRC to get in on the action.
> >>>
> >>> -rma
> >>>
> >>
> >>
> >> _______________________________________________
> >> Noisebridge-discuss mailing list
> >> Noisebridge-discuss at lists.noisebridge.net
> >> https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss
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> >> Cyborg at lists.noisebridge.net
> >> https://www.noisebridge.net/mailman/listinfo/cyborg
> >>
> >>
> >>
> >
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