Little Bird
Analog Hall Effect Sensor Module for Arduino
A simple analog Hall effect sensor module for detecting magnetic fields with Arduino. When a magnet is detected, the on-board LED turns on and the analog out...
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A simple analog Hall effect sensor module for detecting magnetic fields with Arduino. When a magnet is detected, the on-board LED turns on and the analog output changes proportionally to the field strength — making it easy to detect both the presence and relative proximity of a magnet.
Key Features
- Analog Output – Proportional signal for magnetic field strength detection
- On-Board LED – Visual indicator when a magnetic field is detected
- 3-Pin Interface – Simple connection to any Arduino analog input
- 3.3V / 5V Compatible – Works with both voltage levels
Specifications
- Output – Analog
- Supply Voltage – 3V to 5V
- Dimensions – 20 × 11 × 12mm
Wiring
- Y (S) – Analog input (e.g. Arduino A5)
- G (-) – GND
- R (+) – Power (3V or 5V)
Ideal For
- Magnetic field detection and proximity sensing
- Door and window open/close detection
- RPM and rotation sensing
- Arduino beginner sensor projects
Package Contents
- 1× Analog Hall Effect Sensor Module
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
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Step-by-step builds that use this part
Related Tutorials
Free guides on learn.littlebird.com.au