A3144 Hall Effect Sensor Module

Hall Effect Sensor Module – Magnetic Proximity Detection Made Simple

Unlock magnetic detection in your electronics projects with this compact and reliable Hall Effect Sensor Module. Designed for precision and ease of use, this module responds when a magnetic field crosses a certain threshold—perfect for detecting motion, rotation, or object presence without physical contact.

With onboard LED indication and a clean digital output, it’s beginner-friendly yet accurate enough for advanced applications. Built around the A3144EUA sensor by Allegro MicroSystems, it offers fast response and stable performance in the range of 4.5V to 24V. A simple 3-pin interface—Signal (S), VCC, and GND—makes it easy to hook up with Arduino, Raspberry Pi, or any microcontroller.

Key Features:

• Digital output with LED indication
• Threshold sensitivity: 35–450 Gauss with 20 Gauss hysteresis
• Wide voltage support: 2.3V to 5.3V
• Lightweight and compact: Just 5 grams
• Easy integration: Add a 10K pull-up resistor on the signal pin

Common Applications:

• Speed sensing for motors and rotary encoders
• Proximity or object detection
• Door open/close monitoring
• Docking systems
• Pulse counting and valve positioning

Package Includes:

• 1 × Hall Effect Sensor Module

Specifications:

• Operating Voltage: 2.3V ~ 5.3V
• Mounting Hole Size: 2mm
• Dimensions: 29.2mm × 11.2mm
• Output Type: Digital (DOUT) and Analog (AOUT)
• Weight: 5g

Bring effortless magnetic sensing to your next project with this plug-and-play Hall Effect Sensor module—simple to use, yet powerful in function.