oshug June 2011

oshug@oshug.org

11 participants
8 discussions

Re: [oshug] sourcing ADK boards
by Dan Williams 02 Jul '11

02 Jul '11

On 25 Jun 2011, at 08:57, Paul Tanner <paul(a)virtual-techno.com> wrote: > I am thinking that a whole OSHUG session is needed for this, including input from someone who's created a ADK setup with alternative hardware at a reasonable cost. Do we know anyone? I know someone who experimented with putting android phones into USB host mode pre-ADK. He was using it for external keyboards with the intent to plug in USB sensor boards or arduinos. Not sure how far he got or how relevant that is now we have ADK Dan

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AlienCortex AV
by Eddie Chan 29 Jun '11

29 Jun '11

hi all, Following from last FPGA talk; I just want to bring to the attention that there a new Kickstarter project called "AlienCortex AV" which support the Open Core standards. http://www.kickstarter.com/projects/794668827/aliencortex-av eddie

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Re: [oshug] [Open Manufacturing] Fwd: Open hardware anemometer
by John Griessen 27 Jun '11

27 Jun '11

> From: *christopher west* I've decided to design > my own PCB from scratch. I'm a electronic engineer by trade so this > shouldn't cause to many headaches but if this is too difficult I will > consider using an Arduino. Have you considered using pcb and gschem for the electronics? There's a supportive list and good ways to get library schematic symbols and pcb footprints besides making your own. if you have any pointers I would > be very great full. > > Regards, > Chris West great full. --> grateful. Have you done much market research on the commercial competition? There are plenty of weather stations proven and working, so all you can hope for is a cost reduction, and it might be tough to beat standard prices as they've been evolving for so long. But, if you think prices are easy to beat, that's a good reason for open hardware. The functions of a weather station barely make a microcontroller breathe hard, so I immediately think, "What else could you add in the microcontroller part to make a weather station better?", and it strikes me you should use a higher level language than C for the code, and so users can adapt their stations -- use them as development platforms. Then you have a wider market -- scientists start to be interested, tinkerers of course, and developers of instrumentation setups. Otherwise your market is just other EE/CS types, (if they like C). What I like is python-on-a-chip, running on micros like STM32 or MC13224v. See http://www.redwirellc.com/store/node/1 http://mc1322x.devl.org/ http://www.futurlec.com/ET-STM32_Stamp.shtml The STM32 stamp board can run elua, a version of lua: http://www.eluaproject.net/ That's another high level language that some say is good for rapid development. I've not tried it yet, but it looks like time. John Griessen

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Open hardware anemometer
by christopher west 25 Jun '11

25 Jun '11

All, I'm been mulling over the idea of making a no moving parts anemometer and releasing everything to the public. I thought that this would be the best place to start discussing the idea. My plans thus far; The main part of this project are the micro-controller and the ultrasonic sensors. For the micro-controller I'm going to use a Microchip PIC as I've have experience with these. I have thought about using an Arduino but this project will be as much about discovering if I can use open-source tools from start to finish as having a working system at the end. To that end I've decided to design my own PCB from scratch. I'm a electronic engineer by trade so this shouldn't cause to many headaches but if this is too difficult I will consider using an Arduino. The ultrasonic sensors can be used to calculate wind speed and direction. The basic idea is to use a set of sensors perpendicular to each and calculate the time delay or Doppler shift to find out where the wind is coming from. I haven't decided which is the best way to do yet so I'm going to incorporate both. The rest of it will use RS232 for communication. For power I'm hoping to incorporate a battery/solar power unit. The anemometer will have the following basic sensors; Pressure, Humidity, Temperature in shade and direct sun light. As for the open-source tools; Since I'm going to be using Microchips PICs there are in beta trials of there new open-source embedded IDE which is called MPlab X[1], which is based off netbeans so it aligns nicely with my needs. For the embedded C compiler my initial thinking will be to use SDCC[2] but that depends on what PIC I select or I might be able to use GCC but I'm not sure. For the electronic design I'm think KiCAD[3] as it I've played around with it in the past and I've quite liked it. Finally for the physical design I plan to use Freecad[4] it may not be very full featured but I'm hopeful it will be useful. I'm also trying to think of a project name at the moment and I'm very open to any ideas? Please let me know what you think and if you have any pointers I would be very great full. Regards, Chris West [1] MPlab X: http://microchip.wikidot.com/ [2] SDCC: http://sdcc.sourceforge.net/ [3] KiCAD: http://www.lis.inpg.fr/realise_au_lis/kicad/ [4] FreeCAD: http://free-cad.sourceforge.net/

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Re: [oshug] sourcing ADK boards
by Paul Downey 25 Jun '11

25 Jun '11

> Interesting question that caused me to Google around a bit. > Looks like the question should include "at a reasonable price" Indeed! We joked that there must be a silk-screen layer for each colour in the Google logo, but I don't think that's the case. Nigel's points about the unusual USB interface and the economics of a small number of Androids with the latest version sounds most likely. I'd imagine the size of market will change, so was puzzled why we're not seeing a flood of cheap clones. > I am thinking that a whole OSHUG session is needed for this, including input > from someone who's created a ADK setup with alternative hardware at a > reasonable cost. Do we know anyone? heh, I asked this question in preparation for talking to Android people at Google about the ADK on behalf of OSHUG, and our proposed OSHcamp in October. I'll report back on both as soon as I know more! -- Paul (psd) http://blog.whatfettle.com

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sourcing ADK boards
by Paul Downey 25 Jun '11

25 Jun '11

I wondered if anyone here knows where we can get our hands on Android ADK boards? Are they really still expensive and difficult to find? If so, does anyone know why? -- Paul (psd) http://blog.whatfettle.com

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Meego gathering at Skills Matter 5th of July
by Thibaut Rouffineau 24 Jun '11

24 Jun '11

Hi I was wondering if anyone was interested in a meetup in London around Meego? I am trying to put together a regular meetup on the subject, and we'll be starting on the 5th of July! The meetup will be talking Meego and Meego development... there are quite a few project committers and hackers coming to the event from across the UK. The event is sponsored and free to attend http://ce1.com/intel/2011/londonappuplab/ (it's on an Intel page as they're sponsoring the whole thing but this doesn't mean that ARM or Tegra ports are not discussions are not welcome :D). If you're available on the 5th feel free to register and come! I hope this can be useful, and look forward to seeing you soon! Cheers Thibaut

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Bristol Braille Hardware Developments
by Edward Rogers 22 Jun '11

22 Jun '11

OSHUG members, We thought it might interest some of you to know what developments are occurring within Bristol Braille Technology at the moment. As was discussed in OSHUG meeting no.10, BBT is seeking to address the gaping absence of affordable Braille hardware. We have no grand announcement as such, but important steps are being taken nonetheless. The latest news item can be seen below; but it is worth checking the site regularly as there will more than likely be an increased volume of news from now on. http://bristolbrailletechnology.com/#news.22-06-2011-prototype Yours Faithfully, --------- Ed Rogers, Director, BBT Ltd. ed.rogers(a)bristolbrailletechnology.com +44(0)7908 569 214 www.bristolbrailletechnology.com ---------

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oshug June 2011