Hi Mick, I'm also running a heating system with owfs and 1-wire, some perl and python scripts and MB-Logic as HMI. I have a wood-burning oven with 18kW heating water in a 800l buffer. Then this water is mixed down to a lower temperature for each heating circuit: a floor-heating-circuit and a radiant-heater-circuit.
I have 15 temperature sensors all over the house and I used only one long strand as topology (ca. 30m long) - as per one of the recommendations of Dallas-Maxim. I use the LinkUSBi as bus-master. All Slaves are externally powered (5V) by my PC-powersupply, because the LinkUSBi was not able to supply all the slaves. The sensors are soldered to the main-strand, because I have no need for plugging them in or out all the time and it would just introduce problems in a rough enviroment (some sensors get frequently heated up to 95 degC). I am switching relais for pumps and mixers with 230V. This is realised by a self-built IO-board with 3 DS2408 and another self-built board holding the relais. I have the IO-board and the relais-board as Eagle-Schematics if you are interested - the IO-board is based on the original design of H. Roelle. The system is very stable and reliable (well, the hardware-part of it, since the software is still very much WIP). Feel free to ask more questions. Greetings, Martin ------------------------------------------------------------------------------ Systems Optimization Self Assessment Improve efficiency and utilization of IT resources. Drive out cost and improve service delivery. Take 5 minutes to use this Systems Optimization Self Assessment. http://www.accelacomm.com/jaw/sdnl/114/51450054/ _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers