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Gravity Hall Effect Sensor

Gravity Hall Effect Sensor

MPN: SEN0185
DFRobot
Magnetic Hall Effect Sensor Gravity Platform Evaluation Expansion Board
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Overview

The SEN0185 is a digital magnetic Hall effect sensor module designed for the Gravity interface ecosystem. It detects the presence of a magnetic field and provides a simple high/low digital output, making it compatible with 3.3V and 5V logic levels for rapid prototyping.

Why Choose This Part

The module features the plug-and-play Gravity 3-pin interface, which eliminates wiring errors and soldering during development. It supports a wide operating voltage range from 3.3V to 5V, ensuring seamless integration with both low-power microcontrollers and standard 5V systems.

Applications

Non-contact Limit Switches
Detecting the end-of-travel in 3D printers or CNC machines without mechanical wear.
RPM Measurement
Calculating rotational speed by mounting a magnet to a shaft and counting pulses.
Proximity Detection
Identifying when a door, lid, or enclosure is closed in security or industrial applications.

Key Specifications

Type Sensor
Contents Board(s), Cable(s)
Function Magnetic Hall Effect
Platform Gravity

Getting Started

Connect the module to any digital I/O pin on an Arduino or Raspberry Pi using the included Gravity cable. Use a standard digital read function in your firmware to detect the sensor state, where a logic low typically indicates the presence of a magnetic field.

Also Consider

DRV5032 TITexas Instruments - An ultra-low-power discrete Hall effect switch suitable for battery-operated products requiring high efficiency.
Adafruit Hall Effect Sensor Adafruit - A standalone through-hole US1881 sensor for engineers who prefer breadboard prototyping over pre-made modules.
Gravity Analog Hall Sensor DFRobot - Choose this if you need to measure the strength of the magnetic field rather than just detecting a binary threshold.