KY-003 Hall Magnetic Sensor Module

Description:

The KY-003 Hall Magnetic Sensor Module is a robust and highly sensitive digital switch designed to detect the presence of magnetic fields. This module utilizes the A3144 Hall-effect sensor, a reliable component that changes its output state (switches from HIGH to LOW or vice versa, typically active-low) when a magnetic field is introduced. Unlike analog Hall sensors, the KY-003 provides a clear, binary digital output, making it exceptionally easy to integrate into microcontrollers like Arduino, ESP32, and Raspberry Pi without the need for analog-to-digital conversion.

Its simple 3-pin interface (VCC, GND, Signal) and compact design make it a versatile choice for a wide array of applications, including non-contact switching, precise position detection, and speed measurement. Whether you're building a security alarm, a motor RPM counter, or a robotic system, the KY-003 offers reliable and fast response to magnetic stimuli, making it an essential tool for hobbyists and professionals alike.

Specifications:

Module Type: KY-003 Hall Magnetic Sensor Module
Operating Voltage: 4.5V - 24V DC
Output Type: Digital (Active-low, typically: LOW when magnetic field is present, HIGH when absent, but check specific sensor datasheet for exact behavior).
Pins: 3 (VCC, GND, Signal)
Product Dimensions: 25x15mm
Packaging Dimensions: 8x6x1cm