Le 27/10/2011 10:17, Phil White a écrit : > Hi Paul, > > Yes, I know of this product. I have emailed them for clarification on > a couple of points (it appears that you cannot adjust the hysteresis), > but essentially this is the sort of product I need... except that it > is a room temperature sensor, and I need to measure water temp. I > certainly intend to get 1 to play with. > > The DS1821 is, as Patryk says, is *almost* what I want - except that > it is either a temp sensor, *or* a thermostat, but never both at the > same time, due to the fact that the DQ pin is dual purpose, and it is > going to be a pain to flip it from one state to the other.
You can put a DS18B20 near the DS1821 if you want to easily often read the temperature. > Using a thermocouple is the approach I favour at the moment - but that > is only because I haven't come across many alternatives. > > Thanks for the help so far. ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Cisco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
