Hall Effect Sensor Module
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Hall Effect Sensor Module Hall Effect Sensor Module is used to detect the proximity of a magnet. It is very much smaller in size. When the magnetic field rises above a threshold level, the open-collector output transistor switches on, which pulls the logic-compatible output low and illuminates the onboard LED indicator. It's fast (The turn-on threshold is 35-450 Gauss, the minimum hysteresis is 20 Gauss, and the operating voltage range is 4.5 - 24 volts. This module uses the Allegro MicroSystems A3144EUA sensor. It has a 3-pin interface, signal, V+, and GND. To use this sensor /switch, place a 10K pull-up resistor between the "S" pin and the middle pin (+), and connect the "-" pin to the ground. Supply voltage to the middle pin. The "S" pin will go low (gets pulled to the ground) and the onboard LED indicator will turn on when a magnet is brought near. Pin Description: VCC : 2.3 volts to 5.3 Volts GND : power supply ground AOUT (analog sensor output) : Arduino/ MCU input DOUT (digital sensor output) : Arduino/MCU input Applications: Motor shaft speed measurement (shaft encoder) Object position detection Docking Detection Door Open and Close Detection Proximity Sensing Valve Positioning Pulse Counting
- Uses Allegro A3144EUA Hall Effect sensor
- Wide operating voltage: 4.5V to 24V
- Dual output: Analog (AOUT) and Digital (DOUT)
- Onboard LED indicator for activation
- Fast response with 20 Gauss hysteresis
- Compatible with Arduino, Raspberry Pi, ESP32
- Magnetic proximity detection
- Open-collector output with pull-up support
- LED status indicator
- Compact and breadboard-friendly design
- Ideal for speed, position, and motion sensing
| Sensor Type | Hall Effect Sensor Module |
|---|---|
| Power | 2.3V ~ 5.3V |
| Mounting holes size | 2mm |
| Dimensions | 29.2mm * 11.2mm |
| Weight | 5 grams |
What is the operating voltage range of the Hall Effect Sensor Module?
The module operates from 4.5V to 24V DC, making it suitable for both 5V and 12V systems.
Is this sensor compatible with Arduino and Raspberry Pi?
Yes, it provides analog and digital outputs compatible with Arduino, Raspberry Pi, ESP32, and other MCUs.
What magnetic field strength is required to trigger the sensor?
It activates at 35–450 Gauss with a minimum hysteresis of 20 Gauss for stable operation.
Can I use this sensor for speed measurement in motors?
Yes, it's commonly used for motor shaft speed detection and pulse counting in encoder applications.
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About Hall Effect Sensor Module by Iotcart
Buy Hall Effect Sensor Module compatible with Arduino/Raspberry Pi. Detects magnets, 4.5-24V input, fast response. Best price in India.
Categorised under: Sensors