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

Rachel McConnell rachel at xtreme.com
Mon Mar 23 12:53:04 PDT 2009


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-hmc5843.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
>>>     
>>
>>
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>>
>>   
> 
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