DIY Anemometer (Wind Meter) vs EquiWind

Using this app along with a very simple homemade device, you’ll have a working anemometer for measuring wind speed or the airflow in a ventilation system. You can choose the type of anemometer which best suits your needs. The wind speed is determined by measuring the rotation speed of the magnet in your iPhone’s magnetometer. The relationship between the rotation speed and the speed of airflow is set in each version of the anemometer and can be adjusted. You can make improvements to the suggested designs or make and calibrate your own. In order to select units of measurement (m/s, km/h, ft/s, mph, knots, Bft) or the average value ("Avg1" - most recent value, "Avg3" and "Avg7" - average value) press the seven-segment display. Don’t forget to put a protective cover on your iPhone. Specifications ("Outdoor" anemometer): • Measurement range from 0.5 m/s (1 mph) to 15 m/s (34 mph). • Accuracy 0.5 m/s (1 mph). • Update time 2-5 sec. IMPORTANT!!! Small children should not be given magnets because they may swallow them. If two (or more) magnets are swallowed, the magnets can become magnetized to each other in the intestines, squeezing the intestinal tissues between themselves. This can result in serious injury and hospitalization. Children who already think well (and do not swallow everything in a row) can be given only one magnet, and if the magnet is gone, then you definitely need to find a magnet. Telling children not to swallow magnets is probably not necessary, as this can lead to the opposite result. For more information, see the Help section in the app.

EquiWind - Measure how the wind really feels and optimize your performance What if you could finally understand what the wind really does to your performance? EquiWind introduces a new approach: real perceived wind. Like “feels like” temperature, the app analyzes the real impact of wind on your speed, effort, and efficiency. Whether you are sailing, flying, or involved in aerodynamic sports, EquiWind gives you a clear, actionable and immediately useful reading of the wind. Understand the wind differently Traditional weather data is not enough. The real wind, the one that affects your performance, depends on your speed, direction, and environment. EquiWind turns these parameters into a simple indicator: the wind as you actually feel it. Improve your performance With EquiWind, you can: - Optimize your settings and decisions - Understand speed variations - Anticipate performance loss - Take full advantage of aerodynamic conditions Every data point is designed to help you go faster and more efficiently. Multi-domain EquiWind adapts to multiple uses: - Sailing: precise wind reading for performance - Aviation: impact on lift and efficiency - Motorsport: aerodynamic influence One app to understand air and its effects. Smart and accessible approach EquiWind makes complex concepts easy to use: - Clear indicators - Intuitive reading - Directly actionable data Full respect for your privacy EquiWind is built with a privacy-first approach: - No personal data collected - No data transmitted - No tracking All data stays on your device. Even location (GPS), used for calculations, is processed locally only. Why EquiWind? - A unique approach to wind - Real performance gains - Clear and intuitive insights - Total privacy EquiWind - Measure how the wind really feels.