A3144 Hall Effect Magnetic Sensor Module

A3144 Hall Effect Magnetic Sensor Module – Digital Output

The A3144 Hall Effect Sensor Module is a reliable digital magnetic field detection sensor designed for Arduino and electronics projects. It detects the presence of a magnetic field and provides a digital HIGH or LOW output accordingly.

When no magnetic field is present, the output signal remains HIGH (approximately 3.5V). When a magnet is brought near the sensor, the output goes LOW and the onboard LED lights up, indicating detection.

Ideal for automation, speed detection, position sensing, and robotics applications.

⚙ How It Works

• No Magnet → Output HIGH

• Magnet Present → Output LOW + LED ON

The sensor can detect both poles of a magnet and offers fast response time for accurate switching.

🔌 Pin Configuration

• VCC (Middle Pin) → +5V

• GND (-) → Ground

• Signal (S) → Connect to any Arduino digital pin

⭐ Key Features

✔ Digital output Hall-effect sensor
✔ Operating voltage: 5V
✔ Output current: 25mA
✔ Detects both magnetic poles
✔ Onboard LED indicator
✔ Fast switching time: 2 µs ON / 2 µs OFF
✔ Reverse polarity protection
✔ Operating temperature: -40°C to 85°C
✔ Suitable for automotive & industrial use

📊 Technical Specifications

• Model: A3144

• Operating Voltage: 5V

• Current Consumption: 8mA (when switched)

• Operating Temperature: -40°C to 90°C

• Length: 20 mm

• Width: 16 mm

• Weight: 2g

📦 Package Includes

• 1 × A3144 Hall Effect Magnetic Sensor Module