How to measure wind speed by using Anemometer with Arduino Uno || wind speed(m/s) || 100% work

[@kurtryan6697]

Hello, thanks for the video. I was thinking of a project related to wind energy. To give you a brief description, it is centered on designing a VAWT (savonius), but the only difference is that I would put in a somewhat barrel case with inlets for the wind to enter and a vent at the back for wind to get out. I would want the case to rotate wherever the wind speed is highest using a stepper motor, would that require to sensors? Or what do you think?

[@StoyanStoyanov]

Hi, great video! Exactly what I was looking for. But I have a problem. I have a similar one to this anemometer. Only its model is different: PR-3000-FSJT-NPN. All other specifications are 1: 1 as the anemometer indicated in the video: 20 pulses per revolution, NPN output, 5V-30V DC, etc... I connected it according to the specified scheme and uploaded your sketch. Everything works, except for one thing: the values ​​are doubled! I modified the sketch and realized that when the propeller is fully turned, the Arduino counts 40 instead of 20 pulses! I also tried to put a 5.1KOhm resistor between the ground and the NPN output (as some recommend), but then it didn't even return values. Of course, I can leave it as it is, and just modify the sketch so that one revolution is 40 pulses, but I would like to understand why this happens, and if possible to fix it! Can you help me?! Thanks!

[@mybotic_tech]

you may check the code inside, there have a formula for 20 pulse, for your case, just change the 20 pulse value to 40 will do. Thanks

[@yochaig1957]

The third argument to "attachInterrupt" cannot be CHANGE anyway, because it will raise 40 pulses per rotation, instead of 20, as specified by the anemometer's spec.

[@vladuzz7]

wooow, this is fantastic, it worked perfect for my sensor But I have a question, in my datasheet it is said that I need a resistor like 5.1K , but it works fine without it and also only with 3 wires.

[@mybotic_tech]

In the code ady set pull up, so no need resistor to make pull up.

[@yochaig1957]

Baga de seama ca "The third argument to "attachInterrupt" cannot be CHANGE anyway, because it will raise 40 pulses per rotation, instead of 20, as specified by the anemometer's spec.". In plus "The Rotations reset statement (Rotations = 0; //Set Rotations count to 0 ready for calculations) should be BEFORE enabling again the interrupts (sei(); //Enables interrupts).".

[@mybotic_tech]

@@yochaig1957 good

[@OmarZ2000]

I have PR-3000-FSJT-N05V Is this steps will work with it or I should change something ?

[@mybotic_tech]

I am not sure, please try it out

[@OmarZ2000]

@@mybotic_tech Unfortunately, I did't work

[@mybotic_tech]

@@OmarZ2000 may be the concept of your sensor is different

[@eng.abdullahalfuraiji4321]

Does it work with 5v?

[@mybotic_tech]

yes, tested, it work with 5v

[@andreacecchetti6792]

Hi, thanks for your video. I have a sensor quite similar but unfortunately working on RS485 (precisely model PR-3000-FSJT-N01), working between 10-30V DC. I can power it externally obviously but is it possible to read winds data with this different model? Thank you!

[@mybotic_tech]

Rs485 use different communication method, it is different from this sensor...

[@milanpatel735]

You can use RS485 to IP - LAN (Ethernet) converter

[@moonjiqgoodman]

Hi. I bought NPN anemometer from your shopee, currently Im testing to do IoT Anemometer. Is it possible to connect nodemcu esp8266 with anemometer, cause I got 0m/s output speed when use nodemcu. I tried with arduino uno, I get the exact value. Thanks.

[@mybotic_tech]

mybotic.com.my/durian-uno-enhancement-of-arduino-uno-for-iot-project-education?search=Durian%20uno You need to use this, durian uno Nodemcu operating voltage 3.3v, anemometer at least 5v signal, so your nodemcu won't work

[@milanpatel735]

Hi, can we get windspeed data with time stamp ?

[@mybotic_tech]

Can, depend on your code

[@sou4CRF]

Does it work with arduino leonardo?

[@mybotic_tech]

Yes, working, the things you need to know is the interrupt pin may different from uno, you need to change the signal pin to correct interrupt pin in leonardo

[@sou4CRF]

@@mybotic_tech thank you :D

[@mybotic_tech]

@@sou4CRF thanks

[@bodycall499]

Can this sensor connect with raspberry?

[@mybotic_tech]

sure, can, no problem

[@bodycall499]

@@mybotic_tech does you have a code for python?

[@juanestebanpinzonruiz4898]

bro really good

[@mybotic_tech]

thanks for watching

[@formadiksikippolitani4693]

where is the code?

[@mybotic_tech]

hi, ady update the link. sorry the old link no use ady

[@chilceekleinnavares5391]

It doesn't work. All I'm getting is zero in both rotations and m/s

[@mybotic_tech]

Please check your wiring, if still not, maybe spoil

[@chilceekleinnavares5391]

@@mybotic_tech the wirings are the same

[@chilceekleinnavares5391]

@@mybotic_tech what do you mean spoil?

[@mybotic_tech]

@@chilceekleinnavares5391 means no working, you may have a new one ....

[@mybotic_tech]

@@chilceekleinnavares5391 or you try to put a resistor 10k connect between signal pin and 5v, see ok or not

[@PP.EKOTECH]

GOOD JOB !!! ;) Regards ! 👍+ sub ! 😉

[@mybotic_tech]

Thanks for supporting