Wind sensors

[otto001]

Hi,

I am thinking about buying one of those http://www.aliexpress.com/item/WIND-SPEED-SENSOR-JRFS-01-Aluminum-alloy-manufacture/1490853251.html
for shutter control.
It is working with reed contacts and gives 10 pulses for a wind speed of 1m/s.
Does anyone know how something like this could be implemented with mysensors?

Thanks in advance,

Otto

[Sparkman]

@otto001 Hi Otto, you should be able to use one of the pulse counting projects as a way to get started. You'd have to count the pulses over a given time interval and then calculate the wind-speed over that interval. It's definitely do-able.

Cheers
Al

[Moshe Livne]

@otto001 I would think that reed might be a bit of a problem if too windy. Don't know for sure but got the impression that their response time is far from being instantaneous. Probably a better idea would be to use hall effect, no? you might even use a current measuring sensor if you rotate a turbine. but i am just guessing, I really don't know much.

[korttoma]

@Moshe-Livne and @otto001 according to the description for the wind sensor linked to it uses an optocoupler and not reed switch.

[treb0r]

I have this one:http://www.maplin.co.uk/search?text=Maplin+Replacement+Wind+Speed+Sensor+for+N96FY
Is much cheaper and works. It has one reed switch, and one turn/s indicates 2,4 km/h
For rain gauge I have also this part. http://www.maplin.co.uk/search?text=Maplin+Replacement+Wind+Speed+Sensor+for+N96FY
Works in the same way
Here you have how it looks inside: http://www.philpot.me/weatherinsider.html
and here you have some code:
http://sandaysoft.com/forum/viewtopic.php?f=16&t=10868

treb0r

[otto001]

Thanks a lot for the hints, especially @treb0r :-)
I will have a closer look at it as soon as I have the wind sensor

[NeverDie]

@treb0r said:

I have this one:http://www.maplin.co.uk/search?text=Maplin+Replacement+Wind+Speed+Sensor+for+N96FY
Is much cheaper and works. It has one reed switch, and one turn/s indicates 2,4 km/h
For rain gauge I have also this part. http://www.maplin.co.uk/search?text=Maplin+Replacement+Wind+Speed+Sensor+for+N96FY
Works in the same way
Here you have how it looks inside: http://www.philpot.me/weatherinsider.html
and here you have some code:
http://sandaysoft.com/forum/viewtopic.php?f=16&t=10868

treb0r

That seems like a great prices on the wind sensor. Unfortunately, it looks as though Malin won't ship to the USA. :anguished:

[treb0r]

@NeverDie said:

That seems like a great prices on the wind sensor. Unfortunately, it looks as though Malin won't ship to the USA. :anguished:

You can always find somebody who can buy and send it for you ;) I have this privilege that my friend goes to UK very often so he brought me some pcs from Maplin ;)
treb0r