Hi Guys, > My system is evolving in the opposite direction. After a lot of research in > the beginning I decided to use Digitemp to measure all of the temperatures > and X10 to drive all of the mains voltage outputs, with a Python script > running it all. As it evolved I moved from Digitemp to owfs as that gave me > more flexibility,
In terms of multi-system integration here is what I've been slowly chipping away at. I monitor and control my under-floor heating system using a combination of owserver, temploggerd and a python script. I tried the owfs file system module but found to be unstable over time so I just use the python script driven by a cron job every minute. I had 10 PCB's made (minimum order size) where PCB has 10 DS28AE00 sensor node PCBs that break apart. Each node has a 5V regulator and a LED so I can identify them (turn the LED on/off). All the connections to my DS28AE00 boards are on a 1x6 header that provides GND, Data, 5V (in/out), 12V in, I/O 1, I/O 2. Some nodes didn't need the 5V regulator so I feed power into the 12V pin and then out the 5V pin to power local 3-Pin devices like the DS19B20's I have scattered around on things like Zone Return water pipes (small size important) so I can monitor the return temperature of each zone to help me tune the relative flow rates to even room temperatures out. I drive some zone thermostatic valves via a solid state relay attached to the I/O pins of my DS28AE00 sensor nodes to switch mains voltages, which controls the hot water flow into the 3 main areas of the house. I also have the Clipsal C-Bus system in the house to control all the lighting. It has a Pascal Automation Controller (PAC) that lets me write custom logic. The C-Bus lighting system interfaces with the Ness M1 Gold security system. The Ness security system has an Ethernet interface that allows me to access it via an iPhone app over the internet. This lets me turn the alarm on/off and also access anything on the C-Bus Lighting system. This has been a good interim solution to remote control but not ideal. Before I got the C-Bus PAC unit I did all the control logic in the Ness M1 G Unit. It was ok but limited. The PAC is way more capable. I also have recently installed a Control4 HC300 system to tame my home theatre system (mostly ditch the 6 IR remotes I have now) and to also interface to the C-Bus system to provide a more convenient way to control the lights and other things like my swimming pool run schedule and eventually multi-room audio... The have nice iDevice apps so eventually I will be able to control most things in the house from an iDevice. When I started out with all this I did cable for a fall-back 230V mains control of the heating system from simply/dumb stand-alone thermostats on the wall, in case my 1-wire system failed, but it has been a pretty good success. Trying to control room temperature using on-the-wall thermostat would have been a disaster as I quickly found out. Switching to control room temperature by maintaining the floor temperature at 21 DegC gave much better/comfortable room temperatures. I use the LinkUSB USB to 1-wire interfaces (I have 3) work well. I need to do a bit of work on power supply to one of my 1-wire networks which drives some solid state relays as I get a bit of drop-out when the sensors are doing a simultaneous temperature convert but that is not a big problem. I like owfs because it could let me monitor and control from a python script. I'll probably interface the owfs system to the Control4 system to provide a nice GUI interface to the heating system thermostats and to let it change the temperature based on times etc like it lets you do with all their stuff. Of course I could do that in a script but it's not all that rest-of-the-family friendly... Hope that summary is of use to others thinking about similar things. I could do more DIY but I've preferred to use commercial products that work well where necessary as I do need to think about resale value of the house one day... Regards Alex Shepherd ------------------------------------------------------------------------------ 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 Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
