In this video we look at how to measure wind speed using an anemometer and arduino. Interface an anemometer sensor to the arduino uno for acquiring wind speed. The other day, i was discussing an iot project with a talented student group. Together with other components, this anemometer can be widely used in measureing wind in areas such as engineering, railways, docks, power plants, meteorological, cableway, environment study, agriculture. The three type wind speed sensor is an instrument which can measure the wind speed. Diy arduino wind speed meter anemometer project geeky. I am a horrible judge of wind speed but my previous wind meter seemed to never measure more than 6 mph when i knew darn well it was more than that. Anemometer or a wind speed measuring device is a common weather station instrument. The anemometer measures wind speed by closing a contact as a magnet moves past a reed switch.
Just multiply the wind speed by the area of the exhaust aperture, correct the air density for temperature and humidity, and account for a whatever edge effect, if any, exists. It will also measure gusts at user defined periods of 1, 3, 5 or 10 sec. This isnt susceptible to interference like the old wind speed system. At the end of each minute, the sx28 sends a pulse to the arduino. The number of revolutions is counted for a time period which is then converted to wind speed. There is a magnet in the wind cup assembly and a reed switch in the head assembly. Arduino module software is really robust, if it reboots it will restart from scratch. With the relay function wind speed sensor can be directly based on wind speed value of other equipment switching control, can also output wind speed 485 signal, pulse and voltage signals, can be widely used in advertising barrier, weather, ocean, environment, airport, port, laboratory, industry and agriculture and transportation and other. The source code archives of the latest release are available here. Raspberry pi was used as a data logger for the data gathered from the microcontroller unit and automatically displayed a gui for the wind speed and wind direction in real time. When space and weight requirements are tight, the l favorited favorite 67. Iot cluster for measuring wind speed and direction using bmp280 and esp8266 weather stationultimate build for 2017 arduino tutorial visuino ultrasonic wind speed sensor arduino. Arduino data logger wind speed measurement wind and wet. Photovoltaic modules, industrial microcomputer processor, the current generator, electric current and so on are integrated in the internal drive.
The arduino software reads temperature, pressure, humidity, wind speed, wind direction and rain fall. Anyway, i am looking for some arduino code to convert the voltage to a usable signal to indicate wind speed. Anemometer wind speed sensor wanalog voltage output. An anemometer is a device used for measuring wind speed, and is a common weather station instrument. This experiment consists of a pitot tube and pressure differential sensor combination and an arduino board. The output of this reed switch is connected to a digital input on the arduino. Experiment is a multipart series using a raspberry pi as th. Dec 16, 2016 in this video we look at how to measure wind speed using an anemometer and arduino. Anemometer wind speed sensor wanalog voltage output id. To use, connect the black wire to power and signal ground, the brown wire to 7. Measuring wind speed with an anemometer and arduino youtube.
Three functions wind speed, temperature and wind flow in one lcd display. Then, they add a motor to their model to simulate wind speeds around the world using a customized excel workbook. Arduino weather station project davis anemometer cactus. The circuit for the wind speed sensor part is very simple. I also use 2 ina219 current sensors in parallel in this version. These limitations have been exploited in the design of the proposed estimation algorithm to make possible the implementation on a low cost, arduino based board. This would also correspond to a voltage of 0 to 5v. In the background, the arduino measures wind speed at 2. Arduino ide software loaded on to a pc or mac free. Weatherpiarduino weather board switchdoc labs blog. Diy arduino wind speed meter anemometer project geeky gadgets. The method of testing the pitot tube is up to the user for example, i will be using a small dc fan and a 0. The wind speed meter pcewsac 50w 230 is primarily used to measure and monitor the wind load on cranes or wind turbines. In the next sections i will instruct how to assembly the ows arduino module considering the ideal scenario with all the components, however the module will still work if you dont connect all sensors, so, if you only want to measure wind speed for instance you can simply ignore the rain, light or pressure sensors.
A while back, we got a set of weather sensors from sparkfun. Since the anemometer wind speed sensor might be going to be at the end of about five meters of cable so i used a separate 5vdc power supply and galvanicallyisolated it from the arduino board. Measuring wind speed with an anemometer and arduino. Dec 02, 2016 iot 3d printed anemometer and wind vane with esp8266 wemos d1 mini project, hall effect us1881 sensor, tept4400 phototransistor, publish data to mqtt broker.
In the first part we cover the detection of the wind direction. This approach will work on both arm and avr based arduinos. This switch is activated once per revolution of the cups. Let me know what makes my web server hang or not get connected. A single small ball race is held in the centre on a long bolt and the outside is pushed into a hole in the centre of the plywood. How i made a custom arduino weather station toptal. Well describe the operating principles behind how an anemometer works, hardware setup, and software. The weather data of wind speed and wind direction were monitored through arduino uno microcontroller unit using the switchdoc labs software. Here we describe a small circuit which measures wind speed electronically.
Arduino wind speed meter anemometer open electronics open. The wind direction is measured using a potentiometer that changes its resistance depending on the direction. Lowcost diy vane anemometer based on labview interface for arduino article pdf available in journal of physics conference series 11441. The anemometer was going to be at the end of about 25m of cable so i used a separate power supply and isolated it from the arduino board. Neoteck anemometer digital lcd wind speed meter gauge air flow velocity measurement thermometer with backlight for windsurfing kite flying sailing surfing fishing 4. If you are interested in creating an arduino wind speed meter or anemometer to. The anemometer is a cheap plastic model i bought from. I used a prototype dual 6 pin phone jack from ic breakout to connect the weather sensors to the arduino. When i connect the i2c vcc pin from groveweatherboard to unos 5 volts instead of 3.
Below is a list of parts both necessary and particular to this experiment. These can be ordered from sparkfun as article sen08942, or through aliexpress as spare part outdoor unit for professional wireless weather station. A physics department, ekiti state college of education, ikereekiti, nigeria. Wind speed measurement is available in ms, fps, mph, kmh or kn. Active development of the arduino software is hosted by github. Spinning the motor with a variable speed electric drill gives seemingly linear results up to 47mvdc which is as fast the drill runs, probably around 500700rpm. This well made anemometer is designed to sit outside and measure wind speed with ease. Record and recall max min average current function. Furthermore, the wind situation can be measured and analyzed before commissioning a wind turbine. How to build an arduino wind speed meter anemometer. In the next sections i will instruct how to assembly the ows arduino module considering the ideal scenario with all the components, however the module will still work if you dont connect all sensors, so, if you only want to measure wind speed for instance you can simply ignore the rain, light or. Pavel gesyuk takes just that approach with the experiments on his blog. Apr 03, 2015 wind meters are usually mechanical constructions which usually measure wind direction with a vane and wind speed with a paddle wheel.
In part 2 we go through how to measure the wind speed. Arduino coding ended up being easy as there was already some listed on hackerscapes site, and he soon discovered that his family thought it was fun waiting for the highest wind speed to occur. Arduino air flow meter low speeds electronics forums. This is the lidarlite v3, a compact optical distance measurement sensor. The millitary quality interface ensures long life of this anemometer, at the same time enhancing the accuracy of wind speed acquisition. Arduino data logger data acquisition system to measure wind speed and power for wind turbine testing. Determines the peak velocity for the past minute and adds the value to the daily array 1440 points.
To convert this into a functional wind speed, use the conversion of 1. To use, connect the black wire to power and signal ground, the brown wire to 724vdc. How to get the weather kit with anemometer working using. Measuring wind speed with an anemometer and arduino in this video we look at how to measure wind speed using an anemometer and arduino.
To measure wind speed, wind direction and rainfall, i used a set of plastic weather station parts, including an anemometer, a wind vane and a tipping bucket rain gauge. How i made a fully functional arduino weather station. Counting events with arduino and pcf8583 tinkerman. In the software we need to convert the 0 to 1023 to a 0 to 360 range to give us the wind direction. It includes a wind vane, anemometer and a tipping bucket rain gauge.
Using an anemometer and arduino to measure wind speed. The wind cups of the anemometer assembly have a reed switch mounted inside near the shaft. Arduino weather station temp, pressure, humidity, windspeed. The switchdoc labs weatherrack sensors provide a suite of weather sensors for use by arduino and raspberry pi based small computers. Diy arduino wind speed meter research a quick bit of research online provided a wealth of readymade weather stations you can purchase ranging from. Initially it reads temperature, pressure and humidity. To use, connect the black wire to power and signal ground, the brown wire to 724vdc we used 9v diy electronics electronics projects electronics components ceiling curtain rod electronic shop arduino projects pi projects lathe projects alternative energy. From wikipedia, an anemometer is a device used for measuring the speed of wind, and is also a common weather station instrument. When the wind cup magnet is over the reed switch, the switch closes causing the gpio line on the rms200 board to be pulled low. The arduino weather shield from sparkfun is an easytouse arduino shield that grants you access to barometric pressure, relative humidity, luminosity, and temperature. It is composed of shell, the wind cup and circuit module.
Lowcost diy vane anemometer based on labview interface. The adafruit anemometer is capable of measuring wind speeds up to 70 ms or. The sparkfun sound detector is a small and very easy to use audio sensing board with three different outputs. It includes a anemometer speed, wind vane direction, and a rain gauge. When the magnet passes the reed switch, the switch opens again causing the gpio line to go high again.
The open weather station ows is a doityourself weather station solution that. Design and simulation of a wind speed measuring system for. The arduino has a 10 bit a to d converter which gives us the range of 0 to 1023. The wireless wind speed transmitter anemometer features a high quality 3cup rotor in a rugged enclosure, providing rolling average wind speeds between 5 mph to 125 mph. Measure, monitor, store months of data and send it to your server as well as. I added the code for the sd card and real time clock. As we move the wind vane around we should get a reading between 0 and 1023. Mar 30, 2016 diy arduino wind speed meter components. It also required the use of a smart phone with an app and since i had gotten a newer iphone the phone jack required for plugging the device in didnt exist. There are also connections to optional sensors such as wind speed direction, rain gauge, and gps for location and super accurate ti. Arduino data logger wind speed measurement the anemometer sensor is home made from a small triangle of plywood with 3 cups half a table tennis ball glued to the ends. This three part tutorial covers the interfacing of the davis anemometer to the arduino.
Open weather station the arduino open source weather station. Arduino wind speed meter anemometer open electronics. So, he decided to jump into the code again to output the highest wind speed at the last reset of the arduino. I have wind speed sensor that can measure max speed upto 30 ms with analog out put 05v.
Jan 16, 2016 a well organized approach to a project is a delight to see. We were running through a bunch of sensors that they can use in their project. T science technology department, federal polytechnic, adoekiti, nigeria. The adafruit anemometer is capable of measuring wind speeds up to. Mounting hardware and a metal mast is also included. Through the builtin temperature regulator to adjust cf temperature. It can also be used to connect with other computers and systems. Barometric pressure, temperature, humidity and light sensing weather shield for arduino. As an electronics enthusiast you would prefer to solve this without any mechanical components.
The wind speed is detected by the cups opening and closing a reed switch. From wikipedia, an anemometer is a device used for measuring the speed of wind, and is. The circuit for the wind speed is very similar to the frequency measurement. A small magnet on the wind cups passes this reed switch once per revolution. Design and calibration of an innovative ultrasonic. Measuring system for cup anemometer using an 8bit processor. The adafruit anemometer is capable of measuring wind speeds up to 70 ms or 156 mph which should be adequate for our location, and if the speeds ever get that high will probably blow our house down before the anemometer breaks. When i put the wind speed average code, the web server is not working and it just hangs. It measures temperature, humidity, pressure, rainfall, wind speed, uv index and it calculates few more important meteorological values. Temperature, humidity, and pressure are handled by a couple of libraries, which made life a lot easier. However, the user may want to measure a different parameter such as. Use a pi to measure wind speed with eltako windsensor and. An anemometer is a weather sensor device used to measure wind speed. In this instructable we look at how to measure wind speed using an anemometer and arduino.
Arduino software is attached most of the software is taken from the arduino wind chill meter. Counting the closings of the switch over a known time gives a measure of the average wind speed. He decided to hook it up to an arduino uno already on hand, with data going to an lcd screen. In the final part we update the software to measure both wind speed and direction and provide some other functionality. Measuring wind speed and rain was a little bit messy. Its specifications state than a 10kmh wind correlates with 4 pulses per second, so it is a simple pulse counter. Build a fun wind speed tracker with a raspberry pi nuts. Modernize your existing copy of microsoft excel with this free addin to support realtime data. All the arduino 00xx versions are also available for download.
Wind meters are usually mechanical constructions which usually measure wind direction with a vane and wind speed with a paddle wheel. To calculate the wind speed, a formula must be used to convert the number of times the switch activates per period of time to miles per hour. I am not going to go into detail of the weather vane stuff as most of you dont care. Raspberry pi was used as a data logger for the data gathered from the microcontroller unit and automatically displayed a gui for the wind speed and wind. Students build anemometers from everyday objects and use them to measure wind speed. Next step is to measure wind direction and after that wind speed. Modernize your existing copy of microsoft excel with. It interprets and corrects the readings and transmits them every five seconds as a humanreadable text string via usb. Last summer we installed new electric sunshades on our house. You can measure this on the two inner conductors of the rj11 connector pins 2 and 3, using a digital counter or interrupt pins on your microcontroller. The arduino ide can be used on windows, linux both 32 and 64 bits, and mac os x.
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