Introduction

In this tutorial you will learn how to use one water flow sensor with an Arduino board.

The water flow sensor consists of a plastic valve body, a water rotor and a hall-effect sensor. When the water flows through the rotor, rotor rolls and the speed of it changes with a different rate of flow. The hall-effect sensor outputs the corresponding pulse signal.

On April 2nd, we celebrated the official Arduino/Genuino Day with makerspaces and educational institutions from all around the world.

We got the chance to spread the word of Arduino as well as to support the events worldwide by sending various gifts to their participants. From Puerto Rico to Colombia and from Senegal to Italy, codebender celebrated the day with even the most distant places.