Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switching Output |
| Core Chip | A3144 Hall Effect Sensor |
| Operating Temperature | -40°C to 85°C |
| Pin Configuration | 3-Pin Header (VCC, GND, OUT) |
| PCB Dimensions | 32mm x 14mm x 5mm |
| Power Indicator | Yes, Red LED |
| Output Indicator | Yes, Green LED |
| Compatibility | Arduino, STM32, ESP32, Raspberry Pi |
| Package Weight | 15 grams |
Anonymous
Feb 27, 2026
Rating: 4/5
Good sensor, minor soldering needed
The module works well. Had to solder headers myself but that's standard. Sensitivity is good.
Anonymous
Feb 11, 2026
Rating: 3/5
Works but documentation was thin
Sensor functions correctly but the included diagram was a bit fuzzy. Had to look up datasheet online.
Anonymous
Feb 08, 2026
Rating: 5/5
Reliable Hall Effect Switch
Bought five for a smart car project. All consistent performance. Great price point.
Anonymous
Feb 08, 2026
Rating: 5/5
Perfect for Arduino Projects
Works exactly as described. Used it to count RPM on a DC motor. Very responsive.
Anonymous
Feb 05, 2026
Rating: 5/5
Great for learning electronics
Easy to interface with my microcontroller. The LEDs help visualize the output state clearly.
Q: Is this compatible with Arduino Uno?
A: Yes, it is fully compatible with Arduino Uno and most 5V microcontrollers.
Q: Is wiring diagram included in the box?
A: Yes, a basic connection diagram is included in the package documentation.
Q: What is the maximum current output?
A: The output sink current is typically around 25mA. Do not exceed this limit.
Q: Does it detect both magnetic poles?
A: The A3144 typically responds to a single pole (usually South), please check the datasheet for polarity.
Q: What voltage does this run on?
A: It operates comfortably between 3.3V and 5V DC.
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