The A3144 Hall Effect Sensor switches its digital output between high and low when a magnetic field crosses its sensing face. No physical contact happens. The hall effect switch runs on 3V to 6.5V and draws only 4mA at 5V, connecting directly to any Arduino or ESP GPIO pin.
The a3144 hall effect sensor switch has an open-collector NPN output requiring a pull-up resistor on the signal line. Skipping the pull-up gives floating or incorrect readings. Operating temperature spans minus 40°C to plus 85°C.
Robotics makers, and hobbyists use the hall effect sensor for RPM counting and position detection. StemVolt provides sensor with trusted quality, ensuring reliable performance and easy usability.
Related Product:
- Checkout The A3144 Hall Effect Sensor Module
Features:
- Solid-state Hall effect detection — no mechanical contacts to wear
- Fast switching response suits high-frequency RPM counting applications
- Digital-only output for simple HIGH/LOW magnetic presence signal
- -40°C to 85°C wide range for outdoor and motor environments
- Low 4mA current draw at 5V for battery-powered sensing
Technical specifications:
 Applications:
- A3144 Sensor used for Arduino bicycle speed sensor build
- Motor controller uses hall effect switch for India brushless motor commutation
- Fan project uses a3144 hall effect sensor switch for tachometer build
- Robot uses hall effect sensor a3144 for wheel speed sensing
Package includes:
- 1 x A3144 Hall Effect Sensor Switch
Megha Malav –
Magnetic field detection and switching, making it ideal for robotics projects, school competition models, position sensing, and automation applications
Abhinav Hada –
Received on time
Abhishek Pandey –
Anti-static packing and multiple payment options ensured a smooth purchasing experience, while customer care support was helpful with product and project-related queries.
Vijay Jethwani –
No disappointment at all