We've intermittently worked on this. I have one student who has made the beginnings of PIC code for OW slave interface, although has implemented very few of the commands so far.
I also have some C code intended for compiling for the Atmel to implement the timings and raw read/write for slave devices on the OW bus. This hasn't been tested at all yet. I'm responsible for the Artificial Intelligence lab at Washington State University, and currently the OW bus is our main sensor bus. So far, our work has focused on using the 2406 to do open/close-style measurement of various devices (motion detector, micro-switches, security-style door sensors, etc). We would like to be able to make a OW "thermostat" that would allow control of our heating system (both analog and digital output) as well as provide an LCD interface for users to view and set the desired thermostat (they can be different devices, although our early intentions are to integrate in a single package to provide "failover" capability...don't want to freeze anyone out because our OW host/bus crashes!). In any case, I may be able to get someone on this over the summer. --Jim On Mon, Feb 22, 2010 at 8:24 AM, tmk <nufan_...@comcast.net> wrote: > I am writing a 1 wire slave library for the AVR series of > microcontrollers. > > That should allow you to do all the stuff you want. > > Hooking into OWFS might be a little tricky if everyone implements > their own functionality though. > > If a standard set of functionalities can be agreed on, (counter, pwm, > tri state pio, temp sensor, ADC, memory access), then almost anything > could be done > > Anyone have other suggestions for functionality? > > I figure that should cover most cases, and other stuff could be done > with the memory access. In fact I will most likely implement it all > with memory commands. > > Off topic: > I have also considered making a complete clone of the DS2490 (usb to 1 > wire master) on an AVR chip. $30 is too much for a USB -> 1wire adapter! > > An ATTiny chip should be able to handle it no problem > > Would this be interesting? Is there a datasheet on the 2490 usb > interface? Owfs supports it, so I should be able to get what I need > from the source code, worst case > > -tmk > > On Feb 22, 2010, at 7:38 AM, Benjamin Donnachie <benja...@py- > soft.co.uk> wrote: > >> On 22 February 2010 15:22, Pascal Baerten <pascal.baer...@gmail.com> >> wrote: >>> But if for any reason I would stop this activity, I will pass the >>> relay to >>> someone else, or even open source the project... >> >> I'm a newcomer to 1-wire and was a bit disappointed to see the DS2423 >> phased out and joined this list to discuss the practicalities of >> building a counter replacement from a simple PIC. However, BAE0910 >> seems to be an excellent alternative and I'm hoping to order the board >> shortly. >> >> However, I'd be interested to know whether there is any interest in a >> simple open-source PIC-based counting device? Has anyone tried this >> approach already? >> >> Take care, >> >> Ben >> >> --- >> --- >> --- >> --------------------------------------------------------------------- >> Download Intel® Parallel Studio Eval >> Try the new software tools for yourself. Speed compiling, find bugs >> proactively, and fine-tune applications for parallel performance. >> See why Intel Parallel Studio got high marks during beta. >> http://p.sf.net/sfu/intel-sw-dev >> _______________________________________________ >> Owfs-developers mailing list >> Owfs-developers@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/owfs-developers > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
