KY-003 Hall Magnetic Sensor Module for Arduino | A3144 Sensor

Overview

The KY-003 Hall Magnetic Sensor Module is a reliable and high-precision sensor designed for detecting magnetic fields. Built with the A3144 Hall-effect switch, it’s an ideal choice for Arduino enthusiasts, robotics projects, and DIY smart car applications.

Features

• High-Sensitivity Magnetic Detection: The A3144 Hall-effect sensor provides accurate and consistent magnetic field detection.
• Integrated Circuit Design: Includes reverse polarity protection, a square wave Hall voltage generator, temperature compensation, signal amplifier, Schmitt trigger, and open-collector output for stable operation.
• 5V Operating Voltage: Fully compatible with most microcontrollers, including Arduino and AVR boards.
• Digital Signal Output: Offers a clean digital signal (HIGH/LOW) that can be easily processed by microcontrollers.
• Simple Wiring: Comes with three labeled pins — VCC (5V), GND, and Signal — for quick and easy connection.

Applications

Perfect for projects requiring magnetic field sensing, such as:

• Magnetic proximity switches
• RPM counters and speed detection
• DIY robotics and smart car kits
• Magnetic field measurement experiments

Specifications

• Model: KY-003
• Sensor Type: A3144 Hall-effect switch
• Operating Voltage: 5V DC
• Output Type: Digital (open collector)
• Pins: VCC, GND, Signal
• Dimensions: Approx. 18mm x 15mm