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In the meantime another possibility for folks to consider is something like a "Bifferboard". There are people using OWFS on that, e.g. http://sites.google.com/site/bifferboard/H...lackware/1-wire. The Bifferboard runs Slackware Linux and gets by on a couple of watts! It says 1W on...

Here's a mod that looks interesting and that I intend to try (but haven't yet)... Weather-Above 1-wire Temp/Hum Mod David

If you fancy a bit of DIY, it's quite easy to make one of those for far less money, and have it a custom fit for your sensor. A lot of people have done so using a stack of upside down 'plant saucers' held together with threaded bar. Here's an example from the Weather-Watch forum. David

Have you come across Philip Gladstone's surge protection circuits here? Mick at Weather-Above has a 'tidier' version of those circuits here. David

Some say "You can't bottle time". Others say "Yes you can. Trouble is you can't create it, so those who worked out the trick have to get their supply from somewhere/one else. Guess where/who?" :) I hope I'm joking! David

My situation was very different (big over counts with an anemometer at the top of a 33' mast and around 40' of wire between the reed switch in the anemometer and the counter in my 1-wire box) but the solution for me was a simple resistor-capacitor low pass filter, as mentioned in this topic. If...

In a gap between showers I changed the wiring over so that the cap is now between Counter A and GND. I also swapped the electrolytic 1uF for a polyester film 100nF, and bumped the resistor (still between anemometer and counter A) up from 1K ohm to 10K ohm to compensate. The low pass filter now...

Update: The ferrite ring had little if any effect on its own Today I added a grounding wire from anemometer bracket to an earthing rod. The effect of that was to make the overcounting full time, i.e. not just when raining. I then fitted a 1uF capacitor between the anemometer wires (+5 to...

I've put a few turns of the anemometer switch pair around a ferrite ring (which I happed to have available) just before the connection to the ACB. It would be interesting to see if that had an effect on its own, but from the forecast it may be several days till we see rain again. Maybe I'll have...

Thank you. Yes I think it may be relevant and helpful. I hadn't come across the resistor idea (and not being an electronics guy would never have thought of it). I'll hold it in reserve for the present; it would be quite easy to retro-fit later if necessary, as it could at least be done at...

It's apparently a problem in the radio ham community too, especially for those with fibregalss masts... I'm don't think that either the ACB or the vortex are in themselves in anyway to blame. I just seem to have discovered an interesting corner case! I am hopeful that a solution is just a...

Asking around, the idea of 'precipitation static' has been raised as a possible explanation, maybe exacerbated by the fact that the mast is a fibreglass one. Has anyone else come across that sort of thing? Cures? Shielded cable? Grounding the anemometer bracket? David

Only a standard OS WMR928 anemometer Tx unit ~6m (19') up the mast. I have other OS sensors too, but none within ~30m(100') of the mast. There are no radio hams in the area if that is what you mean. This is a rural area. Just folk with normal domestic equipment, e.g. DECT phones, and even then...

I may have spoken too soon... Generally the new arrangement is working well giving sensible but 'better' results compared to the OS WMR928 that is lower down the same pole. However twice now the anemometer counter has gone suddenly flipped to a behaviour in which it increments at around 10...

Just rounding this off... The full 1-wire system is now in place (i.e. the Anemometer Control Board is now at the bottom of the mast, only 10m (~33') from the vortex & e-Vane) and both anemometer and direction are reporting well. :) David

An afterthought... On boards with a pair of RJ45 sockets, if the board is currently the last in the chain and one socket is thus unused, would it be an idea to put dielectric in the 'empty' socket too? I'm guesing that the grease would remain flexible and simple be forced out of the way if the...

Thank you. David

Great. I'll do that. Thank you. David

Thank you, that's what I hoped to hear. :) I was aiming to avoid the connectors, the outdoor humidity chip will be 'off board', and the pressure sensor will stay indoors. I'll feel happier with the rest sealed away from the moisture (and salt air too as we are less than a mile from the sea in...

Hi, I has several sachets of dielectric grease to help protect 1-wire connections to HB boards, but I'm not sure how best to use it? Is it best to put the plug in then seal around with grease, or is some other approach better? David