Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	3144
Sensor Type	Hall Effect Switch
Operating Voltage	3.3V - 5V DC
Output Signal	Digital (TTL)
Detection Object	Magnetic Field
PCB Dimensions	24mm x 16mm
Mounting Hole Diameter	3mm
Response Time	< 1ms
Interface	3-Pin Header (VCC, GND, OUT)
Application	Motor Speed Counting, Position Detection

6 reviews

Anonymous

Mar 24, 2026

Rating: 5/5

Great for learning embedded systems

As a student, this was an affordable way to learn about Hall effect sensors. It interfaces easily with Raspberry Pi GPIO pins as well. Highly recommended for beginners.

Anonymous

Mar 24, 2026

Rating: 5/5

Compact and efficient

Small footprint makes it easy to fit into tight spaces in my custom drone build. The digital output simplifies the code significantly compared to analog sensors.

Anonymous

Mar 20, 2026

Rating: 4/5

Works well but needs calibration

The module functions correctly, but you need to adjust the distance between the magnet and the sensor carefully to avoid false triggers. Once set up, it runs smoothly.

Anonymous

Mar 19, 2026

Rating: 4/5

Good value, sensitive detection

The sensor is quite sensitive, which is great for low-speed applications. Just make sure your magnet is strong enough. The pinout is clearly labeled on the back of the PCB.

Anonymous

Mar 18, 2026

Rating: 5/5

Perfect for Arduino RPM projects

This module works flawlessly with my Arduino Uno. I used it to measure the speed of a small DC motor, and the readings were consistent. The onboard LED indicator is very helpful for debugging.

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable counting switch

I bought five of these for a conveyor belt counter project. All of them worked out of the box. The response time is fast enough for my needs, and the build quality feels solid.

5 FAQ

Q: Does this module work with 3.3V logic levels?

A: Yes, the 3144 Hall Sensor Module operates comfortably within the 3.3V to 5V range, making it compatible with both 3.3V and 5V microcontrollers.

Q: Can I use this outdoors?

A: While the sensor itself is robust, the PCB is not waterproof or weather-sealed. For outdoor use, we recommend enclosing the module in a protective housing.

Q: Is the output normally high or normally low?

A: The output state depends on the specific variant, but most 3144 modules are configured to output LOW when a magnetic field is detected and HIGH when no field is present. Please check the datasheet for your specific batch.

Q: How many wires do I need to connect?

A: You only need three connections: VCC (Power), GND (Ground), and OUT (Signal). The module comes with a 3-pin header ready for jumper wires.

Q: What kind of magnet is required for this sensor?

A: A standard neodymium or ferrite magnet works well. The sensor detects the presence of a magnetic field; ensure the pole orientation matches the sensor's trigger requirement (usually South pole).

Explore your interests

STC32G12K128 STC8H8K64U Microcontroller Small System Core Board Development Board Emulator

$16.50

Youxin Electronics_STM32H743IIT6 Core Board System Board Learning Board STM32 Development Board

$118.00

Arduino DUE Development Board 32-bit ARM Controller A000062 Italian Official Original Import with Cable

$299.00

Ultrasonic Sensor HC-SR04 Ultrasonic Distance Measuring Module Bracket US015-025-026-100

$3.16

Serial SHT20 Chip Temperature and Humidity Sensor Test, SHT30 Chip Measurement and Monitoring Module by Viter Intelligence

$11.00

High-Speed Yabo Smart Raspberry Pi 4B Motherboard Development Board Accessories RaspberryPi 2G/4G/8G RAM Py

$494.30

Magnetic Circular Counting Chips, Two-Sided Flip Coins for Elementary Math, Kindergarten Early Education, Ten-Frame Matrix, Addition/Subtraction within 10 & 20, Teaching Tools

$11.90

3-Wire/4-Wire Flame Sensor Module, Fire Source Detection with IR Receiver, Flame Detection and Alarm

$1.08

SANSI White Label Class A Glass Graduated Cylinder C18 Micro-Precision Demulsification Cylinder with Scale Measurement Includes Certificate Ground Joint Stopper Hexagonal Bottom Borosilicate Glass Lab Equipment

$3.68

EV2400 Battery Unlock Fuel Gauge Programmer MSP430 HPA500 Evaluation Module Interface Board SMBus

$323.00

Cube Three-View Teaching Aid with Grid - 3D Geometry Observation Tool for Grades 4-5 Math (2cm Cubic Blocks Set)

$15.10

OrangePi Orange Pi Zero3 Zero 3 Development Board Allwinner H618 Orange Pi

$228.00

Digital 38KHz Infrared Receiver Transmitter Head Sensor Module Electronic Building Blocks Robot Infrared Communication Remote Control

$2.29

12V Stable Version Light-Control Switch No-Light Sensing with Extension Cable Photoresistor Plus Relay Module

$49.20

STM32 Smart Car 51 Microcontroller Arduino Obstacle Avoidance Chassis Kit Mecanum Wheel Robot Car

$40.80

Tech Small Production Small Invention DIY Piano Electronic Keyboard Real Playable Science Small Handmade DIY Materials

$33.00

HX711 Pressure Sensor Module Electronic Scale Bracket Weighing DIY Scale Pan Tray Set 5/10/40kg200

$3.28

Transparent 3D Geometric Model Perspective Decomposition Graphic Teaching Aid, Complete Set for Elementary Grades 1-6 Math

$6.80

DHT22 Single-Bus Digital Temperature & Humidity Sensor AM2302 Module Electronic Building Blocks

$10.42

E18-D80NK Infrared Photoelectric Switch Diffuse Reflection Obstacle Avoidance Sensor Module 3-80CM

$12.60

LAN8720 Module Network Module Ethernet Transceiver RMII Interface Development Board Xinwei Electronics

$7.85

STC15W408AS Core Board Minimum System Board 51 Microcontroller Development Board TTSOP20 Learning Board

$18.47

New Version MEGA2560 R3 Development Board, Improved MEGA2560 R3 with Sensor Expansion Board

$13.68

Gradient Visual Illusion Kit: Electric Rotating Assembly Toy for Maker DIY, Paintable Handmade Model

$8.72

51/AVR Microcontroller Core Development Board STC89C52RC/51MCU Experiment Board/ATMEGA32 Learning Board

$37.90

[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set

$15.00

GY-30 302 Digital Light Intensity Illuminance Sensor BH1750FVI Module Light Sensor Ball

$7.41

Foldable Clothes Drying Rack Floor Standing Home Balcony Bedroom Hanging Clothes Quilt Drying Artifact Outdoor Cooling Rod Indoor Drying Rack

$47.10

Metal Detector Module Non-Contact Metal Induction Sensor Detection Module Metal Detector

$8.70

RV1103 Miniature Linux Development Board: RISC-V Vision and AI with Ethernet Port

$53.10

For Arduino Development Board R3 Mainboard Microcontroller Module Kit Programming Learning Board Sensor Suite

$78.00

Xuefen Geometry Stamping and Tracing Set for Grades 1-2, 3D and 2D Ink Pads, Math Learning Tools, Cube and Cuboid Models

$4.51

Rubber Tire Toy 4WD Smart Car Wheels Car Model Robot Accessories (Suitable for 2mm Axle)

$0.50

E18-D80NK Infrared Obstacle Avoidance Sensor Proximity Switch Smart Robot Car 10-80cm

$6.30

Digital 38KHz Infrared Receiver/Transmitter Head Sensor Module for Electronic Building Blocks Robots, Infrared Communication Remote Control

$2.80

51 MCU Minimum System STC89C52 DIP40 Through-Hole Smart Car Main Control Board Learning Experiment

$19.80

Outdoor Adventure Kids' Insect Observation Box with Magnifying Glass, Boys & Girls Toy for Exploration, Butterfly Catching and Fish Scooping Tools

$7.80

MPU-9255 9-Axis Attitude 3-Axis Electronic Compass Accelerometer Gyroscope Magnetic Field Sensor Module

$13.42

Freeze-Dried Chicken Treats for Dogs: Nutritious Weight-Gain Breast Meat Chunks for Puppies – Teeth Cleaning, Grain Mixing, Universal Use

$3.90

Soil Moisture Sensor Probe Soil Moisture Meter Detection Module Sensor Separate Probe

$2.39