[TriEmbed] TriEmbed Digest, Vol 9, Issue 6
Charles McClelland
chip at mcclellands.org
Thu Feb 13 10:30:35 CST 2014
To al,
It was great seeing everyone at the Triembed meeting on Monday. I was not able to show my new wireless I2C sensor node but OSHPark did deliver it the next day and it works!
Some thoughts from the threads below:
Alan Porter - You are right, my @chipduino Twitter feed would be a great way for someone to plan a break-in to my apartment. I am thinking about Twitter as a messaging platform but security is an issue. I am thinking that perhaps it could Tweet alerts and receive commands via Twitter but a secured site for sensitive information. More to do here.
I have had great luck with OshPark so far You can see my projects here - http://oshpark.com/profiles/chipmc.
I also mentioned a site for building enclosures which is browser based and generates 2D panels which can be Laser Cut. I have a little more information here as I got a quote back from Pololu.
- The Enclosure Maker site allows you to design the enclosure, define cutouts, select materials and the joints: http://www.makercase.com/#
- I then created the plans from the site in a .SVG file.
- Pololu offers Laser cutting services here: http://www.pololu.com/product/749
- They told me that the best material from a cost and finish point of view was Acrylic which was 50% less expensive than ABS - total for three small boxes was $30 - not bad.
Thanks,
Chip
On Feb 11, 2014, at 1:00 PM, triembed-request at triembed.org wrote:
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> Today's Topics:
>
> 1. Re: Twitter Questions (alan at alanporter.com)
> 2. Firmware Opportunity (Sean Ulrich)
> 3. Answers to TriEmbed meeting questions. (Glen Smith)
> 4. Re: 24vDC 10A power supplies. (Scott Hall)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 30 Jan 2014 15:29:00 -0500
> From: alan at alanporter.com
> To: <triembed at triembed.org>
> Subject: Re: [TriEmbed] Twitter Questions
> Message-ID: <e5bda042a7e4145342b2409980774aeb at alanporter.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
>> I have been building an apartment monitor that can collect
>> information
>> around my apartment (temp, light, occupancy, and ?knocks? via XBee
>> from my wireless knock sensor).
>
>> I thought - why not Tweet the information.
>
> Do you really need to ask that question? I can think of a lot of
> reasons not to tweet this sort of information.
>
> I have a garage door monitor [1], and I certainly don't mind receiving
> growl notifications from it, but I would not want to broadcast it to
> the
> world.
>
> Alan
>
>
> [1] http://blog.alanporter.com/2012-09-02/garage
>
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 7 Feb 2014 13:51:46 -0500
> From: Sean Ulrich <sulrich at triemedical.com>
> To: triembed at triembed.org
> Subject: [TriEmbed] Firmware Opportunity
> Message-ID:
> <CAPf3wjSJPDOheC4fqeB2atBsmS3WJ-ECvHSbZwJ2d9EUMMa-_w at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi all,
>
> I thought I would share a Firmware Developer opening at my company, TriE
> Medical. We are a small design service company that develops and
> prototypes embedded devices for the healthcare industry using 16 and 32 bit
> micros up to embedded Linux and Windows systems. The work is predominantly
> new product development with lots of opportunities to learn new
> technologies and solve interesting problems. The full job description is
> here:
>
> http://www.triemedical.com/wordpress/media/firmware-engineer-job-description.pdf
>
> While I have you on the line, for you students out there, we are looking
> for an intern to do some Ruby plugins for us over the summer as well.
>
> Feel free to contact me directly instead of applying through the website.
>
> Thanks!
> --
> Sean Ulrich
>
> Manager of Software Development
> TriE Medical, Inc.
> sulrich at triemedical.com
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> Message: 3
> Date: Mon, 10 Feb 2014 23:05:02 -0500
> From: Glen Smith <mrglenasmith at gmail.com>
> To: TriEmbed Discussion <triembed at triembed.org>
> Subject: [TriEmbed] Answers to TriEmbed meeting questions.
> Message-ID:
> <CANwtiDVu7etQ1RyxYz39Qyq5-ybeL=CfO0ruAW_3Zvmy-76cTg at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Asked at this evenings meeting was a question about alternatives to
> OSHpark. While I have not done any primary research, I recalled seeing some
> information on LadyAda's website. A Google search brings up the following
> web site:http://www.ladyada.net/library/pcb/manufacturers.html As I said
> during the meeting, it is a bit out of date, the date on the top of the
> writeup is May 17, 2011, and BatchPCB is listed with no mention of it
> sunseting.
>
> OSHPark is listed as "good for testing/experimenting with a design" with
> "excellent quality" boards. A quick read indicates that LadyAda's preferred
> vendor is Advanced Circuits at http://www.4pcb.com/
>
> I have no personal experience with any of these vendors, other than
> ordering a few kits from AdaFruit, which presumably means I have PCB's she
> ordered from one of them.
>
> I will also post a link to Felix Rasu's http://lowpoerlab.com He actually
> has a slightly more recent review of PCB vendors at
> http://lowpowerlab.com/blog/2012/12/28/oshpark-pcb-service-review/#more-181
>
> Felix has designed an Arduino clone that includes a HopeRF RFM12b or RFM69
> radio soldered to the back side. Programming is done via a built in USB
> port or FTDI depending on which version you choose. When programming, you
> simply select Arduino Uno as your target board, get the right serial port
> and send your sketch. He has rewritten the bootloader to enable wireless
> reprogramming as well, so if you decide to change your sketch, you can do
> it without "un-embedding" the Moteino from your project.
>
> He supports the Moteino with a forum on his website and has a number of
> interesting projects in process. Also posted on his blog is some good
> information regarding small scale assembly of PCB's, as he hand pick/places
> components and reflow solders them in a Sunbeam toaster oven.
> http://lowpowerlab.com/blog/category/diy/
>
> I have ordered from Felix, our one transaction had no problems and he gave
> me no hassle when I changed my order shortly after placing it.
>
> Glen
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> Message: 4
> Date: Tue, 11 Feb 2014 10:26:18 -0500
> From: Scott Hall <scottghall1 at gmail.com>
> To: triembed at triembed.org
> Subject: Re: [TriEmbed] 24vDC 10A power supplies.
> Message-ID: <52FA411A.3030202 at gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> In cases like this, if the persons with the "stuff" to offer can make it, the
> Saturday work session and meeting at Splat*Space would be a great place to bring
> items like this. I know not everybody can make it out to Durham, but it is the
> perfect venue to bring in items that you would like to hawk to the rest of the
> group, and avoid any impropriety at NCSU.
>
> On 02/10/2014 04:57 PM, Rodney Radford wrote:
>> I would recommend asking NCSU about this as I suspect they are trying to
>> prevent the space being used as a commercial one.
>>
>> While I am just an interested observer in the meetings, I think the occasional
>> offer of "I have xyz hardware I don't need, does anyone want it", followed by
>> the "I will be at the meeting tonight if someone wants to meet up with me for
>> the transfer" should be fine.
>>
>> Perhaps a quick check with NCSU about it to clarify their statement would be
>> worthwhile. I would hate to see hardware sold out to eBay, or worse, end up in
>> a landfill somewhere, while TriEmbed people go needing similar items. I am
>> out of town tonight, so I can't be there, but I have already sent a note to
>> the original poster about setting up a meeting time to grab two of them
>> already so I am very glad he posted here (and think meeting him tonight or at
>> the parking lot should be okay if I were in town).
>>
>
> --
> Scott G. Hall
> Raleigh, NC, USA
> ScottGHall1 at GMail.Com
>
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