I also had problems on 1043nd. An unpowered hub shared with a pendrive made
it worse. The drive also had problems and they were causing data/filesystem
corruption too. A powered hub made issues almost disappear. With that it
lost the host 1-2 times a year only. For ds9490 un and re-plugging the
dev
703 is officially supported by openwrt. So you can install it without
issues. Worst case you have to strip it a bit to be able to install
owfs/ownet.
Vajk
On Sat, Aug 23, 2014 at 4:48 PM, Colin Law wrote:
> On 23 August 2014 14:03, Vajk Fekete wrote:
> > Hi,
> >
> > I
Hi,
I have done it using tp-link wr1043nd and ds9490. The 703 has much less
memory, likely requires some hacking to get all the sw on it. (it has only
4M flash)
Vajk
On Sat, Aug 23, 2014 at 2:45 PM, Colin Law wrote:
> Hi
>
> I have seen suggestions that a cheap wifi 1-wire hub can be made usi
Hi,
How will this handle the persistent features? As I understand ownet does
cache values for example. If the listener is handled externally and ownet
is not running generally, would it have to use disk as persistence?
Vajk
On Thu, Jun 12, 2014 at 1:50 PM, Jan Kandziora wrote:
> Am 12.06.2014
So it receives 7V on a separate line. Does it also have a separate line for
GND? Even if so, the power will share the gnd line that is used for
communications.
Vajk
On Wed, Apr 30, 2014 at 10:26 AM, Ors Tiszay wrote:
> Hi Paul,
>
> You're probably right about the powered slave thing; never occ
Maybe I am an old chap. If I do not like a function in an API, I just
create a wrapper and use my own wrapper in my code. In an object oriented
environment it is even simpler, I can create my own class that extends the
original and changes any behavior I need to behave differently. I am not
literat
In my opinion having to trim the value is a miniscule annoyance compared to
have an increasing number of redundant virtual directories.
Vajk
On Mon, Mar 17, 2014 at 6:49 PM, Jerry Scharf <
sch...@lagunawayconsulting.com> wrote:
> Michael,
>
> I agree with Paul on this. I think it is wrong to ma
and try other
> solutions. My hope was that owfs would have some possibility to perform a
> custom action when it detects a change.
>
>
> 2014-03-14 15:14 GMT+01:00 Vajk Fekete :
>
>> Yes.
>>
>> Inotify is integrated on the filesystem level. It captures changes
you mean checking without using inotify?
>
>
> 2014-03-14 14:15 GMT+01:00 Vajk Fekete :
>
>> afaik owfs will not check the bus until you do an ls (or something else).
>> so it is not there until you check it. you cannot avoid checking the
>> folder in an infinite loop.
&
afaik owfs will not check the bus until you do an ls (or something else).
so it is not there until you check it. you cannot avoid checking the
folder in an infinite loop.
Vajk
On Fri, Mar 14, 2014 at 2:09 PM, Rob wrote:
> I am trying to make a punch clock with owfs and iButtons. Therefore I w
some?
> I'd certainly use it if I found it.
>
>
>
>
> On Feb 10, 2014, at 12:36, Vajk Fekete wrote:
>
> it's up to you. a wifi xbee module is about twice as much as the tplink
> router I have linked.
>
> wifi, and tcpip are pretty complex protocols. to handle
gt; wifi with an xbee or other wifi module?
>
>
> On Feb 10, 2014, at 5:56, Vajk Fekete 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.
>
>
is running 16Mhz and maybe
has 32Kbyte flash and 2500bytes RAM.
Vajk
On Mon, Feb 10, 2014 at 2:40 PM, Colin Law wrote:
> On 10 February 2014 13:36, Vajk Fekete wrote:
> > There are several options
> > - real usb 1wire host - pretty expensive
> > - usb serial+serial
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 wrote:
> On 10 February 2014 12:01, Vajk Fekete wrote:
> > I do not see what is the reason against the linux box. I do not think you
> > could get cheaper with an avr
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
Vajk
On Sun, Feb 9, 2014 at 10:48 PM, Colin Reese wrote:
> I want to run a microcontroller with a remote owserver or 1
One of my recent lessons learned: a lot of small devices have a mini usb
connector for power. And they consume around say 500mA. And the cheap usb
cables, even the short ones have so little copper in them that 500mA may
cause 2-300mV drop on a 6in cable.
Vajk
On Mon, Feb 3, 2014 at 10:43 PM, Zig
My guess: the new cables are cat5e/cat6, maybe even shielded. The old ones
were unshielded cat5. 1wire does not like capacitance, and shielding adds
capacitance. Usually the flat telephone wire performs better than twisted
pair!
Vajk
On Fri, Jan 31, 2014 at 6:02 PM, Colin Tinker wrote:
> Paul
>
I unplug the
> DS2450R from the Windows-PC and plug it into the Linux-PC. There is no
> difference in the 1-Wire setup.
>
> Ciao,
> Bernd
>
>
> *Gesendet:* Donnerstag, 12. Dezember 2013 um 18:49 Uhr
> *Von:* "Vajk Fekete"
> *An:* "OWFS (One-wire file system
we still cannot rule out the difference is in hardware.
when you say use an additional power supply, what do you mean by that? did
you connect a dc5v power supply to the gnd an +5v pins of the lcd unit?
Vajk
On Thu, Dec 12, 2013 at 6:26 PM, Bernd Lamparter wrote:
> Hi Jan,
>
> let me describe
this case, if the wiring shorts, it will kill all sensors. u will have to
find out which is the bad one, unconnect it, and then you can continue.
also to notethat likely they will fail in proportion if time, so if all
are same, they will fail about the same time.
Vajk
On Mon, Dec 9, 2013 at 4:
Hi,
I have no python exposure, but I think I got it.
Think in layers.
Layer0 is the hw.
Layer1 is owserver, the -u means it will access the usb device directly
In Layer2 you have several components side by side.
- owfs will create the filesystem representation. -s serverIP:4304
causes it to a
Jan, thus looks very promising!
Van
On Oct 2, 2013 1:18 AM, "Jan Kandziora" wrote:
> Hi all,
>
> I guess all of you interested in opto-isolating the onewire already know
> the DS2480B datasheet and Thomas Rudolphi's circuits (for those who
> don't, check http://home.kpn.nl/thomas_7/1wire/1wire_i
The key piece of information is, that ds9490 uses the ds2490 chip. Which is
kinda discontinued by dallas/maxim. At a point they stated they have made a
huge lot that will last years, and stopped production. They may have
restarted production, or are just keeping price high enough to fulfill the
pre
You also must take into account the wiring. The wires go to the sensor, up
to the die itself, and are made of good heat conducting material. Use as
narrow wire as possible, and stuff a reasonable amount of the wire under
the insulation. I mean the wire not just comes in a plain line, but is
wrapped
uly, afternoon about 20C. Could be warmer in September when
> we are likely to be gluing in the flooring.
>
> I thanks everyone for the ideas.
> Peter
>
>
> On Mon, Jul 8, 2013 at 11:31 PM, Vajk Fekete wrote:
>
>> If you seal 25Celsius 70% humidity air in, a
If you seal 25Celsius 70% humidity air in, and cool that down to 10Celsius,
you will have about 9grams of condensation per cubic meter of air.
In my view this is not too significant. You only will have problems, if
fresh humid air can enter, and more water condensens from the fresh air.
You can c
Just one note: pay attention to the insulation on the wire. Using general
pvc insulated wire will cause a leak itself. Best would be to embed some
stainless bolts, and connect wires to them using nuts and washers on the
exterior side.
Vajk
On Sun, Jul 7, 2013 at 9:18 PM, Jerry Scharf wrote:
>
You can buy motorized cylinders or motorized lock assemblies. With these,
you still have the mechanical key and it functions regardless of the
electronics. I did not want to advertise anyone, but if you need sample
links, I can send some.
Vajk
On Wed, Jun 5, 2013 at 10:39 AM, Giulio Carabetta
Szia,
There were postings about the w1 kernel module being unstable. Not just on
RasPi.
Vajk
On Sat, Feb 16, 2013 at 8:52 AM, Attila wrote:
> Greetings,
>
> After several tries I found that my USB 1-wire master is not working
> reliable on Raspberry Pi - seems in some cases USB bus power is no
Hi,
I do not know Your specific requirements, but you may end up creating some
custom device that includes a microcontroller. In this case, it is much
easyer to simply push all data over 1w into the uC regularly, and use the
buttons locally to navigate the data.
Vajk
On Mon, Jan 7, 2013 at 8:22
is floating. There may be some parasitic capacitance, that is charged thru
the internal pullup, and pulling the input low for the charging pulse?
Vajk
On Fri, Dec 28, 2012 at 4:24 PM, Gregg Levine wrote:
> On Fri, Dec 28, 2012 at 3:21 AM, Vajk Fekete wrote:
> > You mean it counts one
You mean it counts one when you disconnect? You should not leave it
floating. Use a weak pull up/down resistor depending what is the normal
state of the input. 1-2kohm will do.
Vajk
2012.12.28. 6:01, "Gregg Levine" ezt írta:
> On Thu, Dec 27, 2012 at 6:02 PM, Gregg Levine
> wrote:
> > Hello!
>
There are endless options. You need to decide if you want a quick hack, or
a product grade solution.
For the optoisolated circuit, you will also need a reverse diode parallel
to the led, else the other half wave will stress the led too much. And the
capacitive series component to limit the currren
Hi,
It is really about
- how fast it has to be (like detect power off in 20 secs is acceptable?)
- how professional does it have to be?
There are wide varieties. The simplest is to use a lightbulb and a ds1820
:-)
Vajk
On Tue, Dec 4, 2012 at 6:08 PM, Silvano Gai wrote:
> I need to sense the
If the functionality is not more than a thermostat that has thresholds to
turn the heating on and off, one could consider fully emulating ds1821.
Then no special support would be needed on the server side.
Vajk
On Fri, Nov 23, 2012 at 5:05 PM, Paul Alfille wrote:
> Congratulations on your accomp
Also to note, that when the parasite power mode is used, the 5v pin of the
18s20 has to be connected to the gnd pin.
Hi all people here. I am a newbie to the list. Have openwrt on tplink
wr1043nd with ds9490 and owfs. Experimenting with creating my own slaves in
an atmel microcontroller. My backgr
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