It’s something [mircemk] demonstrates, with an Arduino-powered magnetic field strength meter that uses a UGN 3503U Hall effect device. The circuit is extremely simple, comprising the sensor ...

It’s basically an Arduino ... sensor readings on the LCD. A first test in the exhaust stream of his car, cycling through idling and revving as shown in the title image, suggests that the meter ...

If you are interested in creating a DIY Arduino wind speed ... Wind speed in meters/sec corresponding to minimum voltage float voltageMax = 2.0; // Maximum output voltage from anemometer in ...