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Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
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(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
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Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4019) - 03 April 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Soil Moisture sensor
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- Posts: 1820
- Joined: Sat 17 Dec 2011 11:55 am
- Weather Station: Davis Vantage Pro2
- Operating System: Windows 11 x64
- Location: Dorset - UK
- Contact:
Soil Moisture sensor
I've picked up a brand new soil moisture sensor for £20.
I don't know which cable goes where.. the wires are green, one wire has a white stripe. There's no information anywhere to tell you which wire is supposed to go in to..
Does anybody know?
I don't know which cable goes where.. the wires are green, one wire has a white stripe. There's no information anywhere to tell you which wire is supposed to go in to..
Does anybody know?
- mcrossley
- Posts: 12770
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: Soil Moisture sensor
I don't think it matters which way round the wires go.
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- Posts: 1820
- Joined: Sat 17 Dec 2011 11:55 am
- Weather Station: Davis Vantage Pro2
- Operating System: Windows 11 x64
- Location: Dorset - UK
- Contact:
Re: Soil Moisture sensor
Thanks Mar, thought as much!
Got it all working. I had a special stand fabricated to mount my station in a tidy manner. I painted it all up and concreted it in, then added pipework to route all of the cables.
https://postimg.cc/3ycM350y
https://postimg.cc/Q9zjYKJy
https://postimg.cc/V09Hr3vW
Got it all working. I had a special stand fabricated to mount my station in a tidy manner. I painted it all up and concreted it in, then added pipework to route all of the cables.
https://postimg.cc/3ycM350y
https://postimg.cc/Q9zjYKJy
https://postimg.cc/V09Hr3vW
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- Posts: 1820
- Joined: Sat 17 Dec 2011 11:55 am
- Weather Station: Davis Vantage Pro2
- Operating System: Windows 11 x64
- Location: Dorset - UK
- Contact:
Re: Soil Moisture sensor
Yeah. A friend nearby had one he was going to use, but didn't realise that they come with bare wires. He didn't want to fork out for the transmitter, so he offered it to me for free. I couldn't accept it for free, so I paid £20 as a thank you. I probably wouldn't have bought one, but I couldn't resist for that price.
A weather station that I follow down in Plymouth has the full Davis set up. I noticed that they are sending soil moisture to the Met Office WoW site, but it is as a percentage.
Did you notice that offering when you added the soil temperatures?
- mcrossley
- Posts: 12770
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: Soil Moisture sensor
They do accept soil moisture in percent, but there is no simple method to convert from soil moisture in cB to percent saturation, it depends on the soil type and appears to be non-linear.
I guess a linear function between something like 10 cB and say 70-100 cB would be an approximation.
I guess a linear function between something like 10 cB and say 70-100 cB would be an approximation.
- SJG1976
- Posts: 365
- Joined: Wed 21 Dec 2011 11:04 am
- Weather Station: Davis WLL, with Airlink
- Operating System: Raspberry Pi3 MX on USB Drive
- Location: Glemsford, Suffolk
- Contact:
Re: Soil Moisture sensor
Think that's going to be my Next Purchase.
Soil Moisture Station.
But soooooo expensive and then having to add the sensors.
Leaf, soil, temp
I've currently got an EcoWitt on the go just for a cheap soil moisture sensor, that seems to read in % rather than cB
Probably wasted a bit of money going for the Ecowitt and should have just stuck to Davis...
.
Soil Moisture Station.
But soooooo expensive and then having to add the sensors.
Leaf, soil, temp
I've currently got an EcoWitt on the go just for a cheap soil moisture sensor, that seems to read in % rather than cB
Probably wasted a bit of money going for the Ecowitt and should have just stuck to Davis...
.
Glemsford Weather
https://GlemsfordWeather.co.uk
https://GlemsfordWeather.co.uk
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- Posts: 102
- Joined: Wed 25 Feb 2009 3:47 am
- Weather Station: Davis VP2+
- Operating System: Pi 4B Buster
- Location: Oxfordshire, UK
Re: Soil Moisture sensor
I have a related question if I may please?
I would like to use the Leaf Wetness Sensor/Soil Station as an ‘It’s Raining!’ indicator but was wondering what it would look like both in the Weatherlink app and on the Weatherlink website?
I asked Davis the question but they could not show me a screenshot or anything so I’m still in the dark about how it integrates?
It’s an expensive solution I know but does anybody here use one to get an early indication that it’s raining and are you able to set an alarm to be notified of the fact?
Thanks & kind regards,
-=Glyn=-
I would like to use the Leaf Wetness Sensor/Soil Station as an ‘It’s Raining!’ indicator but was wondering what it would look like both in the Weatherlink app and on the Weatherlink website?
I asked Davis the question but they could not show me a screenshot or anything so I’m still in the dark about how it integrates?
It’s an expensive solution I know but does anybody here use one to get an early indication that it’s raining and are you able to set an alarm to be notified of the fact?
Thanks & kind regards,
-=Glyn=-
- mcrossley
- Posts: 12770
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: Soil Moisture sensor
Not exactly on topic, but you can use the old Hydreon RG-11 sensors in "is raining" mode with CMX. Still pricy though!
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- Posts: 1820
- Joined: Sat 17 Dec 2011 11:55 am
- Weather Station: Davis Vantage Pro2
- Operating System: Windows 11 x64
- Location: Dorset - UK
- Contact:
Re: Soil Moisture sensor
For the six months that I've been using one, I have found that at start of normal rainfall, it will register between 10 and 15 immediately. Drizzle or fine rain will jump to 2 or 3 immediately, and then increase in large increments. Developing dew starts around 0.2 and then increases in small increments. It'll take some time to work it out as you'll need to monitor it during multiple weather types.
- mcrossley
- Posts: 12770
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: Soil Moisture sensor
I see an enhancement request - to use leaf wetness sensors as "is raining" sensorsMapantz wrote: ↑Tue 12 Jul 2022 2:31 pm For the six months that I've been using one, I have found that at start of normal rainfall, it will register between 10 and 15 immediately. Drizzle or fine rain will jump to 2 or 3 immediately, and then increase in large increments. Developing dew starts around 0.2 and then increases in small increments. It'll take some time to work it out as you'll need to monitor it during multiple weather types.
- meteo19
- Posts: 89
- Joined: Tue 03 May 2016 8:13 pm
- Weather Station: Davis VP2+/DP1500 SmartHub
- Operating System: Microsoft Windows 7 Pro
- Location: Ségur-Le-Château, France
- Contact:
Re: Soil Moisture sensor
Hi all
Just a clarification compared to the price of this probe.
Knowledge of leaf wetness is especially useful in agriculture.
For example, for a treatment that must be done on dry foliage.
Or to know if a greenhouse should be ventilated: if the foliage of the tomatoes is too humid, there is a risk of mildew.
For the amateur meteorologist, this information does not bring much.
I have been using one for 7 years only for professional purposes and it plays its role perfectly by being an excellent decision-making tool.
Best regards
Just a clarification compared to the price of this probe.
Knowledge of leaf wetness is especially useful in agriculture.
For example, for a treatment that must be done on dry foliage.
Or to know if a greenhouse should be ventilated: if the foliage of the tomatoes is too humid, there is a risk of mildew.
For the amateur meteorologist, this information does not bring much.
I have been using one for 7 years only for professional purposes and it plays its role perfectly by being an excellent decision-making tool.
Best regards
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- Posts: 1820
- Joined: Sat 17 Dec 2011 11:55 am
- Weather Station: Davis Vantage Pro2
- Operating System: Windows 11 x64
- Location: Dorset - UK
- Contact:
Re: Soil Moisture sensor
I wouldn't say no..
- mcrossley
- Posts: 12770
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: Soil Moisture sensor
I only just looked at the IsRaining function. It's a prime candidate for an Alarm, but it currently only works with RG-11 devices. I will lay down some ground work, then in a future build it can be configured to be triggered by other devices.