Description
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 /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
Package Includes:
- 1 x Hall Effect Sensor Module
Specifications:
| Sensor Type | Hall Effect Sensor Module |
| Power | 2.3V ~ 5.3V |
| Mounting holes size | 2mm |
| Dimensions | 29.2mm * 11.2mm |
| Weight | 5 grams |
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