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 SensorFidget Spinner RPM Counter




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:

  • simple transducer project
READ  Pulse Sensor and Arduino – Interfacing

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