Thanks for a really nice project, I tested now for a while to read temperature through 1-wire and are working on an application to run on NSLU, but can be used on every computer, when I read temperature and write this to txt file and rad this with Flash program, if you are intrested I will try to write an example how to do this and also some Flash files to use, just use an text file, with updated files. Look at http://furuberg.no-ip.org/flowchart_heatsystem.html Is it possible to have the values updated directly from OWFS, xml or something to not use the scripts needed? Idees?
Best regards Conny Broberg >----Ursprungligt meddelande---- >Från: [EMAIL PROTECTED] >Datum: 04-01-2008 21:14 >Till: <owfs-developers@lists.sourceforge.net> >Ärende: Owfs-developers Digest, Vol 20, Issue 5 > >Send Owfs-developers mailing list submissions to > owfs-developers@lists.sourceforge.net > >To subscribe or unsubscribe via the World Wide Web, visit > https://lists.sourceforge.net/lists/listinfo/owfs-developers >or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > >You can reach the person managing the list at > [EMAIL PROTECTED] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Owfs-developers digest..." > > >Today's Topics: > > 1. Re: Hydroelectric Powerplant (Matthias Urlichs) > 2. Re: Design help (Thomas Berg) > 3. Re: Hydroelectric Powerplant (Mark Marsh) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Fri, 4 Jan 2008 13:24:00 +0100 >From: Matthias Urlichs <[EMAIL PROTECTED]> >Subject: Re: [Owfs-developers] Hydroelectric Powerplant >To: owfs-developers@lists.sourceforge.net >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=us-ascii > >Hi, > >Ben Griffith: >> "...the device will still respond to the reset pulse, but any subsequently >> transmitted 1-Wire command will be ignored." So what would owfs do then? > >Return an annoying error. :-/ > >> Would there be a way to distinguish between that response and an unreachable >> device? > >I can't think of any, esp. when the thing is not the only device on the bus. > >-- >Matthias Urlichs | {M:U} IT Design @ m-u-it.de | [EMAIL PROTECTED] >Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de > - - >Man has never reconciled himself to the ten commandments. > > > >------------------------------ > >Message: 2 >Date: Fri, 04 Jan 2008 14:23:28 +0100 >From: Thomas Berg <[EMAIL PROTECTED]> >Subject: Re: [Owfs-developers] Design help >To: owfs-developers@lists.sourceforge.net >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Hi again, >I was planning to use the DS2890 combinde with conrad product below, but >since the DS2890 is not recomended for new designs I have to re think. >Anyhow the goal is to control the speed of a fan in a woodchip burner, >the rest of the processautomation will work with relays, but the fan >speed do really need to be adjustable. > >http://www2.produktinfo.conrad.com/datenblaetter/175000-199999/183199-da-01- ml-TRIAC-REGLER_de-en.pdf > >Best regards, >Thomas > > > > >------------------------------ > >Message: 3 >Date: Fri, 4 Jan 2008 15:07:37 +0000 >From: "Mark Marsh" <[EMAIL PROTECTED]> >Subject: Re: [Owfs-developers] Hydroelectric Powerplant >To: owfs-developers@lists.sourceforge.net >Message-ID: > <[EMAIL PROTECTED]> >Content-Type: text/plain; charset="iso-8859-1" > >Would it be possible to share a memory device between two 1-wire busses? >Some sort of synchronisation would be required so that it wasn't swapped >while being read / written but that shouldn't be too difficult (PIO based >semaphore). You could even use two devices so that both busses have a device >that can be read / written at any time. It wouldn't provide real time access >but could be used to transfer the results of measurements made by the >microcontroller. > >Just a thought. > >Mark > > >On Jan 3, 2008 5:29 PM, Paul Alfille <[EMAIL PROTECTED]> wrote: > >> On website at http://owfs.org/index.php?page=hydroelectric-plant (I've >> included my responses). >> >> ---------- Forwarded message ---------- >> On Dec 13, 2007 3:44 PM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: >> >> > I have an old and small hydroelectric powerplant >> > ( http://sundsvik.dnsalias.org/) run on a shoestring budget. >> > It is remotely monitored and controlled by a >> > system mainly based on 1-wire devices using OWFS. >> > >> >> >> > Thankyou for a very nice piece of software. >> > The 1-wire devices have their limitations, they >> > are for instance not very good at measuring >> > precise intervals and totals and other things. >> > Therefore I would like to design a flexible >> > device based on a microcotroller for instance a >> > PIC that can draw on the advantages of the 1-wire >> > protocol and extend the capabilities of the devices offered by Maxim. >> > The device to emulate that first comes to my mind >> > is the DS18S20 which has a rather simple >> > architecture with a read/write scratchpad memory >> > area which is ideal for my purposes. >> > My questions to you are: >> > 1) Commands 0xBE and 0x4E: Can I in any simple >> > way read and write whole or parts of the >> > scratchpad memory with OWFS? Is there a >> > one-to-one relationship between the reported >> > temperature and the content of the temperature registers? >> > >> >> Well, we read scratchpad internally, and it would be easy to make it >> externally visible. >> I don't currently, because it might overwhelm new users, and changing the >> scratchpad would make other aspects inaccurate (like temperature >> resolution). >> >> 2) Are you aware of any project for emulating the >> > Dallas 1-wire devices? I hate to reinvent the wheel. >> > >> >> Louis Swart's LCD uses a PIC to emulate a 1-wire device. Maxim in general >> is protective of the 1-wire device technology (for the slaves, the masters >> are fair game). >> >> A. Have you looked at the DS27xx chips? They have temperature, current, >> accumulators, timers, voltages, even a bit of memory. Pretty cheap. Look >> specifically at the DS2760 DS2751 DS2770 and DS2780 >> >> B. There is no reason to blindly emulate the DS1820 -- we can create an >> entry to your chip using the command codes you like. It has to speak 1-wire >> (reset, selection, etc) but the actual protocol needn't be constrained. >> >> C. If you really want to be different, we can make a unique adapter and >> chips that don't have to talk true 1-wire between them. We can work to make >> it fall generally in the same scheme. >> >> D. There might be other resources (smart people) if you ask this question >> ion the owfs-developer's list. >> >> E. Although Dallas is phasing them out, the DS2404 has dual inputs -- >> 1-wire and 3-wire and can serve as a bridge to the PIC. >> >> >> > Thanks in advance >> > H?kan Elmqvist >> > >> >> >> ------------------------------------------------------------------------- >> This SF.net email is sponsored by: Microsoft >> Defy all challenges. Microsoft(R) Visual Studio 2005. >> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >> _______________________________________________ >> Owfs-developers mailing list >> Owfs-developers@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/owfs-developers >> >> >-------------- next part -------------- >An HTML attachment was scrubbed... > >------------------------------ > >------------------------------------------------------------------------- >This SF.net email is sponsored by: Microsoft >Defy all challenges. Microsoft(R) Visual Studio 2005. >http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > >------------------------------ > >_______________________________________________ >Owfs-developers mailing list >Owfs-developers@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/owfs-developers > > >End of Owfs-developers Digest, Vol 20, Issue 5 >********************************************** > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
