Hall Effect Sensor

MAGNETIC SENSING PRINCIPLE: Utilizes the Hall Effect phenomenon to detect the presence of a magnetic field. When a magnet approaches the sensor and the magnetic field exceeds the threshold level, the output transistor switches and generates a logic signal
MAGNETIC DETECTION RANGE: Detects magnetic fields with a typical turn-on threshold between 35 to 450 Gauss and a minimum hysteresis of about 20 Gauss, ensuring stable and reliable switching
POWER SPECIFICATIONS: Operates within a 2.3V to 5.3V DC supply range, enabling compatibility with most microcontrollers and embedded systems
SENSOR IC DESIGN: Based on the A3144 Hall Effect sensor IC from Allegro MicroSystems, known for its fast response and reliable magnetic field detection
INTERFACE DESIGN: Provides digital (DOUT) and analog (AOUT) output signals, allowing flexible integration with Arduino, ESP32, Raspberry Pi, and other MCU platforms
PIN CONFIGURATION: Equipped with four connection pins (VCC, GND, AOUT, DOUT) for power supply and signal interfacing with microcontrollers
INDICATOR FEATURE: Includes an onboard LED indicator that lights up when a magnetic field is detected, enabling quick visual confirmation of sensor activation
MODULE DIMENSIONS: Compact PCB measuring approximately 29.2 mm × 11.2 mm, with 2 mm mounting holes for easy installation in embedded projects
APPLICATION SCOPE: Commonly used in motor speed measurement, shaft encoders, object position sensing, door open/close detection, proximity sensing, valve positioning, and pulse counting systems