Project 17 · Sensor Catalog (Vol III)

Hall Effect Sensor (A3144)

Build a solid-state magnetic switch that detects hidden magnetic fields using the power of the Hall Effect.

Starter 20 min 6 components
Hall Effect Sensor (A3144) wiring diagram

What you'll learn

  • Understand the relationship between magnetic fields and electrical signals via the Hall Effect.
  • Be able to interface digital magnetic sensors with an Arduino.
  • Identify the difference between latching and non-latching Hall sensors.

What's in the kit

  • Arduino UNO
  • A3144 Hall Effect Sensor
  • Breadboard
  • Jumper Wires (M-M)×5
  • Strong Magnet (Neodymium preferred)
  • 10k Ohm Resistor (Optional pull-up)

Protocol: digital