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Re: [Paparazzi-devel] SD Data Logger

From: Christophe De Wagter
Subject: Re: [Paparazzi-devel] SD Data Logger
Date: Mon, 3 Jan 2011 21:07:05 +0100

Hi Marc,

I agree with your comments about too many different boards with low volumes that keep the price high. I think the next focus should be on the newer STM32 processors. In the mean time I still think it's nice to have the choice as I also see many people that build and assemble their board themselves. Maybe we can improve the list of autopilots on the wiki in categories to reduce beginners confusion?

based on very old slow 16MHz 8-bit AVR
  -(arduinoMega: possible for fixedwing but with limitations) 

based on LPC2148 50MHz 32bit ARM (1Watt)
  -high volume/low price: tiny2.11 / TWOG
  -special editions: mounting holes + xbee (yapa) / onboard inertial+airdata (hb)

based on new STM32 70MHz 32bit with IRQ (0.5Watt)


On Fri, Dec 31, 2010 at 9:30 AM, Marc Schwarzbach <address@hidden> wrote:
Hi Rui,

you are welcome to get all the information you like.

Just need some days to sort my stuff after I moved...

You should check that the processing of the logged files is working. I did the logger some time ago and then the tool to convert the logged files (which should be compatible to the one Martin wrote) did not work in my system. Did not need it after that and so did not check. Probably Martin can say something about it?

In general I would like to add my thoughts on the idea of designing another board.

There are now many different board designs around. Some working, some in prototype stage. I´m not sure if this is good for the project in general. Of course there is the need for some projects to have a special capability on the autopilot. But I see two major downsides. A beginner will be very confused and will have problems to decide what to use. On the other side, there will not be bigger numbers in "production" of boards, which means we will not get cheaper boards over time, which would be a good thing :-)

Probably, for platforms offering more space then needed by a tiny, it would be an idea to think about a modular approach to add modules like airspeed or a data logger (think of the "shield" design in arduino)? Or we could adapt the software to an existing platform like the Ardupilot-Mega (I´m not sure, how hard this would be)?

Let´s go for it next year..

Now preparing for New Year´s Eve :-)



-------- Original-Nachricht --------
> Datum: Fri, 31 Dec 2010 02:08:56 -0100
> Von: Rui Costa <address@hidden>
> An: address@hidden
> Betreff: [Paparazzi-devel] SD Data Logger

> I would like to know more about the Datta Logger from Marc.
> It's possible to report all information (schematic, pcb, BOM, software,
> etc)
> on wiki or send by e-mail?
> Cheers
> Rui Costa

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