Fidget Spinner RPM Counter

Hi everyone! This is my next project, Fidget Spinner RPM Counter or Arduino Tachometer with Hall-Effect Sensor.

1: Requirements

Parts Required:

• Fidget Spinner

• neodyimium magnet

• Arduino Uno

• LED + resistor 220 Ohm

• Hall-Effect Sensor – a3144

• resistor 10 k

• Wires

• Breadboard

• LCD 1602

2: Hall-Effect Sensor

Using Hall-Effect Sensor we can measure the speed of rotation. I used Hall-Effect Sensor – a3144.

RPM (Revolutions per minute) – the number of revolutions per minute. Revolutions per minute – a unit of measurement of rotational speed: the number of complete rotations made by the body (fidget spinner, wheel etc.) around a fixed axis. Used to describe the speed of rotation of the mechanical components in the mechanisms and machines.

3: How does it work?

To measure the speed of rotation on the Fidget Spinner must be mounted a part of neodyimium magnet that affect the Hall sensor after each complete turn of the Spinner.

4: Indication

The presence of a magnetic field is indicated on the LED.

LCD 1602 indicates current RPM, maximum RPM and tachometr bar (from 0 up to 1260rpm). 1260 rpm is my personal record.

This Post / Project can also be found using search terms:

• arduino fidgit spinner rmp
• fidget spinner hall effect
• how to measure the speed of a fidget spinner using magnetic hall sensor
• simple transducer project