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I would like to thank Electron and all the good folks at CocoonTech for allowing Hobby Boards to have a little space here.

If you have any questions about Hobby Boards, our boards and kits or anything just ask away and I will do my best to provide timely answers. If you are not sure who Hobby Boards is then check out our website

If you have any ideas about new kits we could offer let us know, we are always looking for new designs.

Eric Vickery
Would you happen to have a little less expensive wind measurement system other than THIS one?

I just wanted to be able to turn off my sprinklers if the wind was over 20 mph (don't need a real accurate system).


Someday I want someone to explain this "one wire" stuff that apparently needs a lot more than one wire to operate! Laymen terms please.
Currently that is the only one we have available and is the only 1-Wire ready anemometer that I know of.

Maybe in the future once we grow more we can offer one of our own design that would hopefully be more affordable.

If you only wanted wind speed you could possibly build one like this one and use a reed switch and one of our counter boards to measure wind speed. If you go with the kit in the link and a counter you would probably end up spending as much as our anemometer.

Gemini said:
Someday I want someone to explain this "one wire" stuff that apparently needs a lot more than one wire to operate! Laymen terms please.
Check out this link for a good general explaination of 1-Wire.

Wow Eric nice upgrade to the site. I haven't had time to see if that reed switch is working but if it is I'll get it to you. Thanks for the help.


Thanks for the kind words about the site. We are glad everybody seems to like it because it took much longer than we wanted (or expected) it to :)

Just let me know on the counter.

I too would like to know more about how one wire works. How can I interface one wire device with HS?
Well let me give this a shot. Short and sweet. You need a one-wire sensor. Let's start with a temperature sensor DS18s20. It has three legs. You need 2 wires, not one, and most recommend cat5 because of the twisted pairs are better for the one wire signal. Then you need a computer interface. There are several approaches but some of them are either a DS9097u, a LINK, a USB connector (can remember the part number, or a temp05/08 unit. The difference between the temp05/08 unit and the rest is the temp05/08 unit processes the reading of the one-wire "bus" for you. The other interfaces use the PC to process the data. Lastly you need software to read the incoming data. The Temp0508 unit come with a script that can be used to populate HomeSeer devices and there also the DooTemp08 plugin. The others need software and this has been scarce on the HS BB. There used to be a pretty good plugin that would read data from a DS9097U but it died. I believe Michael McSherry wrote an xAP application that can read them and If I remember correctly several of his other MCS apps read the DS9097U. What I would love to see is a simple script/plugin to read the one wire devices but apparently it's not as easy as it appears. The beauty of the system is hypothetically you can tap into the cat5 wire at any point and add a new sensor. All of the one-wire sensors use the same 2 wires in "parasitic" mode and the same 3 wires in an external power mode. For example in the parasitic mode 2 of the wires are connected which leaves the 2 wires needed to form the "one-wire" connections. On a temp sensor the outer 2 wires (GND and Vdd) are connected together. I do not want to get too technical and to tell you the truth if an engineering challenged person like me can do this anyone can.
Squintz said:
I too would like to know more about how one wire works. How can I interface one wire device with HS?
I think Rupp answered pretty well.

For a bit more info you can check out the link a few posts above for a good article on 1-Wire.

As for HS integration I think that the 1-Wire XAP app the Michael McSherry wrote is probably your best bet for now.

Eric the trouble with the xAP stuff is, I do not understand all the pieces and parts so it makes me a bit nervous to just start adding a bunch of "other" apps to the system. I wish someone would write an idiots guide to getting started with xAP. So I could feel more comfortable installing this apps. Heck I do not even understand what the hub does let alone the other stuff.

I agree about xAP being confusing. I looked at the website and did a bunch of searching on it a while back when I was going to write my own HA software but I couldn't find any good information about what you needed to get it to work so I went in a different direction.

Sooooo.. a "one wire" sensor has at least TWO wires and some even THREE!? So why is it called ONE wire sensor??
My normal network could be called a ONE wire system as long as I have THREE more wires connected! :) (tongue in cheek)
I believe it is called "one wire" because all the data flows on the one wire, even to multiple devices. RS-232 serial requires two wires (transmit & receive), plus ground and optional control/handshaking lines.
It was orginally called 1-Wire because the data and power were on the same wire, and it was always a misnomer because you actually needed 2 wires data/power & ground. But since people have figured out 1-Wire uses way beyond what Dallas had invisioned sometimes there needs to be more power provided than the "1 wire" supports so external power must be provided so more wires :)