Hall Effect F41 Sensor

The Hall Effect F41 Sensor is a digital magnetic sensing module based on the Hall Effect principle, capable of detecting the presence and strength of a magnetic field. It converts magnetic field changes into digital output signals, making it ideal for applications like motor speed measurement, rotation counting, and position sensing in Arduino, Raspberry Pi, and ESP32-based projects.

When a magnet passes near the F41 sensor, it triggers a change in output voltage — providing a clean and stable digital HIGH/LOW signal that can be read by any microcontroller. This makes it widely used in encoder systems, motor feedback control, tachometers, proximity detectors, and automation systems.

The F41 sensor is compact, easy to integrate, and highly reliable, with built-in reverse polarity protection and digital switching circuitry for accurate signal processing.

⚙️ Key Features:

✅ High-sensitivity digital Hall Effect sensing technology
✅ Detects magnetic field polarity and motion
✅ Output signal compatible with Arduino, Raspberry Pi, and NodeMCU
✅ Built-in voltage regulator for 3.3V to 5V operation
✅ Fast response time and stable switching
✅ Ideal for speed, proximity, and position sensing
✅ Long operational life with low power consumption

🔧 Technical Specifications:

• Model: F41 Hall Effect Sensor

• Operating Voltage: 3.3V – 5V DC

• Output Type: Digital (HIGH/LOW)

• Current Consumption: <10mA

• Response Time: <3ms

• Sensing Range: 0–10mm (depends on magnet strength)

• Output State:

  • HIGH → No magnetic field

  • LOW → Magnetic field detected

• Operating Temperature: -25°C to +85°C

• Dimensions: 32mm × 14mm × 8mm

• Interface: 3-pin (VCC, GND, DO)

⚙️ Working Principle:

The Hall Effect F41 Sensor detects magnetic fields produced by magnets attached to rotating or moving objects. When a magnetic field passes through the sensor, the internal Hall element produces a voltage that switches the output state. This enables non-contact detection of rotation speed, position, or proximity — ideal for automation, robotics, and industrial control systems.

⚙️ Applications:

• Motor RPM and speed measurement

• Rotational position sensing

• Proximity and object detection

• Encoder signal generation

• Industrial automation control systems

• DIY Arduino robotics and motion tracking projects

⚠️ Precautions:

• Use a stable DC supply (5V recommended).

• Keep the sensor away from strong external magnetic sources.

• Ensure correct polarity when wiring the module.

• For best results, calibrate with a consistent magnet distance.

🎥 Tutorial & Resources:

📺 Watch Tutorial: Hall Effect Sensor F41 with Arduino – Speed and Position Measurement
Learn how to connect the F41 Hall Sensor with Arduino, monitor output signals, and calculate motor RPM.

🔗 Internal Links:

• Explore more Sensors & Modules

• Browse Arduino and Accessories

• Check Electronics Components

• View ICs for supporting circuits and controllers

🧩 Product Summary:

The Hall Effect F41 Sensor is a compact and efficient digital magnetic sensor for motor speed, rotation, and position detection. With a wide operating voltage range, stable output, and simple integration with Arduino or Raspberry Pi, it’s perfect for robotics, automation, and motion control systems that demand accuracy and reliability.