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The A3144E Hall Effect Sensor Module is built around the A3144 Hall switch sensor and LM393 voltage comparator, providing precise magnetic field detection for a wide range of electronics projects. This module is suitable for detecting magnets, measuring rotation, and creating proximity sensors, speed counters, or DIY electronic applications. It outputs both analog (AO) and digital (DO) signals for versatile integration with microcontrollers such as Arduino, ESP32, and Raspberry Pi.

Features:

• Dual output: AO (analog) and DO (digital) for flexible applications.

• Detects magnetic fields and provides a low-level voltage output when a field is present.

• Operates at a voltage range of 3V – 5.5V DC, suitable for most microcontrollers.

• High-precision LM393 voltage comparator ensures reliable signal processing.

• Compact module size: 32mm x 14mm for easy integration into projects.

• Ideal for speed measurement, motor rotation detection, proximity sensing, and magnetic switch projects.

• Easy to interface with Arduino, ESP32, Raspberry Pi, and other microcontroller boards.

• Low power consumption and robust design for long-term use.

How to Use:

• Connect VCC to 3.3V or 5V positive supply on your microcontroller.

• Connect GND to the negative power supply.

• Use DO pin for digital output detection; it goes low when a magnetic field is present.

• Use AO pin for analog output to measure field strength continuously.

• Mount near a moving magnet or magnetic target for rotation or proximity sensing.

• Integrate with microcontrollers to trigger events or count rotations.

• Ideal for DIY projects, robotics, speed sensors, and magnetic switches.

Specifications:

• Operating Voltage: 3V – 5.5V DC

• Chip: LM393 Voltage Comparator / A3144 Hall Sensor

• Comparator Output: 16 mA

• Dimensions: 32mm x 14mm

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