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Hall Effect Magnetic Sensor Module – DC 5V Digital Magnetic Field Detector

Hall Effect Magnetic Sensor Module – DC 5V Digital Magnetic Field Detector

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ParameterDetailed Specification
Operating Voltage5V DC
Sensor TypeHall Effect (Magnetic Field)
Output TypeDigital (High/Low)
Comparator ChipLM393 (On-board)
IndicatorPower LED & Signal LED
Interface3-pin / 4-pin (VCC, GND, DO, AO)
Detection StateOutput stays HIGH; drops LOW when magnet detected
Price
₹ 38.14 ₹ 38.14
(Tax included)

Product Description

Detect magnetic fields with precision using the Hall Effect Magnetic Sensor Module. This sensor is an essential tool for robotics and automation, allowing your projects to react to the presence of magnets. At Robogears, we recommend this module for its high sensitivity and on-board LM393 voltage comparator, which ensures a stable digital signal for your microcontroller. Whether you are building a non-contact limit switch, a tachometer to measure motor RPM, or a door security system at your Pimpri facility, this 5V sensor provides a reliable, wear-free alternative to traditional mechanical switches.

Detailed Key Features

  • Non-Contact Detection: Operates without physical touch, preventing mechanical wear and tear, making it ideal for high-speed rotational sensing.

  • Dual Output Capability: Features both a Digital Output (DO) for simple high/low triggers and an Analog Output (AO) to measure the relative strength of the magnetic field.

  • On-board Signal Processing: Equipped with an LM393 comparator and a potentiometer to adjust the sensitivity threshold for the digital trigger.

  • Real-time Indicators: Includes a power LED to confirm the module is active and a signal LED that illuminates when a magnetic field is detected.

  • Small Form Factor: Its compact PCB design allows for easy mounting in tight spaces, such as inside motor housings or behind control panels.

All Technical Details

  • Stability: Precision resistors and high-quality soldering ensure minimal signal noise.

  • Logic Level: Optimized for 5V systems like Arduino Uno, Mega, and Nano.

  • Durability: Solid-state sensing means there are no moving parts to fail over time.

  • Applications: Brushless motor control, magnetic door alarms, gear tooth counting, and proximity sensing.

Prototyping & Engineering Tips (Robogears Exclusive)

  • Magnet Polarity Matters: At our Pimpri workshop, we always remind users that Hall sensors are often polarity-sensitive. If the sensor isn't triggering, try flipping the magnet over; one side (North or South) will trigger the sensor while the other may not.

  • RPM Measurement: To build a tachometer, mount a small neodymium magnet to a rotating wheel or gear. Use an interrupt-driven function in your Arduino code to count how many times the signal drops to LOW per second.

  • Analog vs. Digital: Use the DO pin for simple "on/off" tasks like a door sensor. Use the AO pin if you need to determine how close the magnet is to the sensor, as the voltage will change based on the proximity.

  • Magnetic Shielding: Avoid placing the sensor near large motors or high-current wires, as the electromagnetic interference (EMI) can cause "ghost triggers."

Package Includes

  • 1 x Hall Effect Magnetic Sensor Module

Image Disclaimer

Product images are shown for illustrative purposes only. The color of the PCB (typically blue or black) or the style of the Hall element (e.g., 3144 or 44E) may vary slightly between batches, but the DC 5V performance and magnetic detection quality remain as described.