These look great. How are multiple Moteinos resolved? How are remote IO
addressed on the ATMega? Is there a developed python/RPi functional
library?
Colin
On Tue, Feb 11, 2014 at 4:21 AM, Eloy Paris <pe...@chapus.net> wrote:
> Colin, Stuart,
>
> On 02/10/2014 10:30 PM, Colin Reese wrote:
>
> > Anybody chime in with status on this? I think this will be where I
> > go.
> >
> > On 2/10/2014 06:47, Stuart Poulton wrote:
> >> To be fair, I would have thought this was the ideal application
> >> for
> >>
> >> http://owfs.org/index.php?page=external-sensor-design
> >>
> >> Not sure where Paul is with support etc, if it even exits.
>
> I believe that what you are trying to achieve (small wireless sensors
> that are cheap, can run on batteries for month or years, and can
> potentially be integrated with OWFS) is the holy grail of data
> collection in a small environment like our homes. We all have done
> something similar with 1-Wire in one way or the other but 1-Wire uses
> wires so sometimes we are limited in where we can place our 1-Wire sensors.
>
> I also have been looking at ways to solve this. I've done some work
> using ATmega 328 and RFM12B wireless transceivers and think that it is a
> good and very cheap option (for new developments I'd look at the RFM69).
> I think Xbee is too expensive, especially when considering that the
> RFM12B is a very viable option. Raspberry Pi and anything running Linux
> is overkill and too power hungry for this application, in my opinion.
>
> I suggest you look at two options you can buy "off the shelf":
>
> 1. Moteino
>
> 2. JeeNodes
>
> These two have the RFM12B integrated with the ATmega on a small board.
>
> That solves the hardware problem. The issue then becomes a software
> issue...
>
> I do not think anyone has been successful in integrating a non-1-Wire
> device with OWFS via owexternal. I can tell you that I tried but didn't
> find that it was ready for prime time. I just couldn't get it work and
> moved on to another way to build a wireless sensor network (using xPL,
> which shows some promise, but I still think it would have been nice to
> be able to integrate it with OWFS).
>
> Anyway, here's a discussion from July of 2013 when I was trying to get
> owexternal work:
>
>
> http://owfs-developers.1086194.n5.nabble.com/External-sensor-support-td9779.html
>
> As you can see from the discussion, at the time I probably was the first
> person to give this a try, and the discussion didn't end in anything.
>
> Please keep us posted on this as it's a very important topic.
>
> Cheers,
>
> Eloy Paris.-
>
> >>
> >>
> >> On 10/02/14 14:36, Colin Reese wrote:
> >>> Silly me; atmega328 has i2c. I can use the 2483, but need to get data
> >>> out.
> >>>
> >>> Per the earlier conversation, can I mount the xbee serial /dev/AMA0 as
> >>> a bus if running in transparent? I believe this us possible, but
> >>> limited to one bus.
> >>>
> >>> This may have been previously discussed, but an API-mode master to
> >>> expose all remote buses would be great. I guess you'd need some glue
> >>> to read all remote xbees and respond to owfs with something it would
> >>> interpret as the multiple buses.
> >>>
> >>> On Feb 10, 2014, at 5:56, Vajk Fekete <vaj...@gmail.com
> >>> <mailto:vaj...@gmail.com>> wrote:
> >>>
> >>>> You do need some 1wire host for the AVR too.
> >>>> If not, that means you plan for bit banging and a passive interface.
> >>>> Same is possible with openwrt and a cheap router.
> >>>>
> >>>> An other option is the arduino YUN, which is an arduino and a wifi
> >>>> module. But the wifi module in there is a complete "cheap home
> >>>> router" with the ethernet ports stripped, and runs openwrt just like
> >>>> the router. And this is reflected in the price too. To me it sounds
> >>>> weird to have a wifi module that has at least 32Mbytes RAM, 8Mbytes
> >>>> flash, a ~300Mhz CPU, and use it as a communication subsystem for a
> >>>> uController that is running 16Mhz and maybe has 32Kbyte flash and
> >>>> 2500bytes RAM.
> >>>>
> >>>> Vajk
> >>>>
> >>>>
> >>>>
> >>>> On Mon, Feb 10, 2014 at 2:40 PM, Colin Law <clan...@gmail.com
> >>>> <mailto:clan...@gmail.com>> wrote:
> >>>>
> >>>> On 10 February 2014 13:36, Vajk Fekete <vaj...@gmail.com
> >>>> <mailto:vaj...@gmail.com>> wrote:
> >>>> > There are several options
> >>>> > - real usb 1wire host - pretty expensive
> >>>> > - usb serial+serial host
> >>>> > - use the internally available serial port (the console of
> the
> >>>> machine,
> >>>>
> >>>> Options 2 and 3 are not going to be significantly cheaper than
> the
> >>>> first are they?
> >>>>
> >>>> Colin
> >>>>
> >>>> > like with rpi) and use a serial 1wire host
> >>>> > - use some available gpio lines and do bit-banging
> >>>> >
> >>>> > I went for the first because this is only a hobby for me, and
> >>>> already had
> >>>> > three 9490s on hand.
> >>>> >
> >>>> > Vajk
> >>>> >
> >>>> >
> >>>> > On Mon, Feb 10, 2014 at 1:20 PM, Colin Law <clan...@gmail.com
> >>>> <mailto:clan...@gmail.com>> wrote:
> >>>> >>
> >>>> >> On 10 February 2014 12:01, Vajk Fekete <vaj...@gmail.com
> >>>> <mailto:vaj...@gmail.com>> wrote:
> >>>> >> > I do not see what is the reason against the linux box. I do
> >>>> not think
> >>>> >> > you
> >>>> >> > could get cheaper with an avr and Xbee than a tplink 703n,
> >>>> >> >
> >>>> >> > http://www.ebay.com/bhp/tp-link-tl-wr703n
> >>>> >>
> >>>> >> I presume one would need a usb/1wire adaptor with that.
> >>>> >>
> >>>> >> Colin
> >>>> >>
> >>>> >> >
> >>>> >> > Vajk
> >>>> >> >
> >>>> >> >
> >>>> >> > On Sun, Feb 9, 2014 at 10:48 PM, Colin Reese
> >>>> <colin.re...@gmail.com <mailto:colin.re...@gmail.com>>
> >>>> >> > wrote:
> >>>> >> >>
> >>>> >> >> I want to run a microcontroller with a remote owserver or
> 1Wire
> >>>> >> >> devices.
> >>>> >> >> I don't want/need another linux box. A cheap AVR and WiFi
> >>>> unit like an
> >>>> >> >> XBee WiFi would be ideal. Is there not AVR code that would
> >>>> run owserver
> >>>> >> >> over a WiFi module?
> >>>> >> >>
> >>>> >> >> Where can I find docs on owexternal? I've seen mention of
> >>>> it but
> >>>> >> >> nothing
> >>>> >> >> complete.
> >>>> >> >>
> >>>> >> >> Colin
> >>>> >> >>
> >>>> >> >>
> >>>> >> >> On 2/9/2014 13:41, Michael Markstaller wrote:
> >>>> >> >> >
> >>>> >> >> >
> >>>> >> >> > On 09.02.2014 22:13, Colin Reese wrote:
> >>>> >> >> >> Paul,
> >>>> >> >> >>
> >>>> >> >> >> How would you envision implementing a remote owserver
> >>>> over a WiFi
> >>>> >> >> >> module?
> >>>> >> >> > This is 100% easy and possible since many years, just
> >>>> take any
> >>>> >> >> > openwrt-router and run owserver on it.. Works pretty
> fine
> >>>> 24x7.
> >>>> >> >> >
> >>>> >> >> > The other way around, low-power I'd more guess on
> 6lowpan and
> >>>> >> >> > ow-external, which is also right in place.
> >>>> >> >> >
> >>>> >> >> > Michael
> >>>> >> >> >
> >>>> >> >> >
>
>
>
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