[islandlabs] SCP1000 + Arduino Update

[John Abella]

You coming tonight?   I'll show you my temp / pressure sensor setup.


John

Sent from my iPhone

On Mar 31, 2010, at 6:44 PM, Tony Biondo <tonyb at tonybox.net> wrote:

> I also have a temperature sensor!
> http://www.sparkfun.com/commerce/product_info.php?products_id=9418
>
> And I got it working!
> http://tonybox.net/tempsensor.png
> http://tonybox.net/tempsensor_hw.jpg
>
> On Wed, Mar 31, 2010 at 11:27 AM, john abella <john at abella.net> wrote:
>> I've got the one Stalker.   I had thought there were two, but maybe
>> the
>> other was yours.
>>
>>
>> John A.
>>
>>
>>
>>
>> On Wed, Mar 31, 2010 at 11:13 AM, Burns, William <burns at cshl.edu>
>> wrote:
>>>
>>> John:
>>>
>>> The device that Joe picked out (but doesn't have in-hand) uses
>>> standard
>>> pin spacing. (it would plug into a breadboard) So... unless there's
>>> something special that you'd want on a breakout board (I haven't
>>> read into
>>> the datasheet/app-notes) I'm not sure what the advantage of a
>>> breakout board
>>> would be. (for the MPX4250A)
>>>
>>> All:
>>>
>>> How many stalkers do we have? (mine got pilfered at I-Con)
>>>
>>> -Bill
>>>
>>> ________________________________
>>> From: list-bounces at islandlabs.org [mailto:list-
>>> bounces at islandlabs.org] On
>>> Behalf Of john abella
>>> Sent: Wednesday, March 31, 2010 11:07 AM
>>> To: Island Labs main mailing list
>>> Subject: Re: [islandlabs] SCP1000 + Arduino Update
>>>
>>> Yeah, the MAP sensor idea is a good one, but even this one won't
>>> get us to
>>> 100,000 -- it reads down to 2.9 psi and I think we need to be in
>>> the .1 PSI
>>> range to read the whole trip.  It would still be a big
>>> improvement, but it's
>>> a lot harder than getting something already broken out for this
>>> kind of use.
>>>
>>> RE:  GPS -- Tony, if you have that thing working it shouldn't be
>>> too hard
>>> to drive it / have it log to the stalker once I have the temp /
>>> pressure
>>> stuff working.   At the very worst, we could just drive it from
>>> the second
>>> stalker if needed?   Either way, if you have an Arduino maybe you
>>> can start
>>> trying to get it to read reliably?  Tons of sketches on the forums
>>> for
>>> reading from a Venus for Arduino.
>>>
>>> John
>>>
>>>
>>>
>>> On Wed, Mar 31, 2010 at 10:46 AM, Burns, William <burns at cshl.edu>
>>> wrote:
>>>>
>>>> This is cool.
>>>>
>>>> A while ago, Joe gave me a part-sheet w/ some other pressure sensor
>>>> listed on it.
>>>> I had intended to post this to the list earlier. It may be too
>>>> late now,
>>>> but here it is:
>>>>
>>>> Freescale part number: MPX4250A. it's in a 6-pin "867" case.
>>>> (867-08?)
>>>> http://www.freescale.com/files/sensors/doc/data_sheet/MPX4250A.pdf
>>>> http://www.mouser.com/Search/Refine.aspx?Keyword=841-MPX4250A
>>>>
>>>> -Bill
>>>>
>>>> ________________________________
>>>> From: list-bounces at islandlabs.org [mailto:list-
>>>> bounces at islandlabs.org] On
>>>> Behalf Of john abella
>>>> Sent: Monday, March 29, 2010 11:03 PM
>>>> To: List at islandlabs.org
>>>> Subject: [islandlabs] SCP1000 + Arduino Update
>>>>
>>>> Got the SCP1000 working tonight with my new Freeduino.   Check it
>>>> out,
>>>> and ignore the temporary wiring -- I was desperate.
>>>> (Relatively large photos)
>>>> http://i.imgur.com/xx2o3.jpg
>>>> http://i.imgur.com/GoAvA.jpg
>>>>
>>>> If you could read the Serial monitor on the Arduino software it
>>>> would
>>>> say:
>>>> TEMP F [73]
>>>> PRESSURE [99747]
>>>> From trusty Google:  99 744 pascals = 14.4666441 pounds per
>>>> square inch -
>>>> which sounds about right since we're in the basement.
>>>> I should have the cable to program the Stalker this weekend --
>>>> once I get
>>>> back from vacation on Tuesday (4/6) I can start working on the
>>>> MicroSD card
>>>> logging part.
>>>> Then I think the steps would be:
>>>>
>>>> Figure out an enclosure solution (it's going to be small!)
>>>> Put a new CR2032 battery in it and let it log until it either
>>>> fills the
>>>> microSD (1GB - no way it gets filled) or runs dead
>>>> See if that's long enough for a flight -- it should be
>>>> Think about how to wire the sensor up in a payload
>>>>
>>>> That's all for tonight!
>>>> John A.
>>>>
>>>>
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>>>>
>>>
>>>
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