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Your cart is empty. Concept: 3144 series Hall switch integrated circuit applies the Hall effect principle and uses semiconductor integrated technology to fabricate a magnetic sensitive circuit. It is a magnetic sensing circuit composed of a voltage regulator, a Hall voltage generator, a differential amplifier, a Schmidt trigger, a temperature compensation circuit, and an output stage with an open collector. Its input is the magnetic induction intensity, and the output is a digital voltage signal.
Advantages: small size, high sensitivity, fast response speed, good temperature performance, high precision and high reliability
Typical applications: no touchpoint switch, automotive igniter, brake circuit, position, speed detection and control, safety alarm device,Textile control system
customer
Reviewed in the United States on May 5, 2025
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JBerg
Reviewed in the United States on May 15, 2025
Tried and true A3144E Hall Effect sensor mounted on a breakout which handles the pull up resistor and adds a LED so you can easily determine the state of the sensor. Super easy to use with only one digital data pin that's either high or low. You can test this with just VCC/GND and a magnet no need to even wire it up to a controller or another circuit to the data pin. That said getting this to work with a microcontroller like Arduino is also super easy, it's really just a single digital read to check state for high or low. Works with 3.3v or 5V which is very convenient.Only drawback to this board is the space it takes up. The board seems quite larger than it need be for the simple circuit but it works well for prototyping.
Jason & Amie R.
Reviewed in the United States on May 13, 2025
I picked up this 6-pack of KY-003 Hall Effect Sensor Modules for an Arduino-based project to monitor the open/closed status of my garage doors. I ended up installing them on all three garage doors, using small neodymium magnets mounted to the moving sections. The sensors trigger reliably each time the doors move past them.The modules are compact, easy to wire, and work with both 3.3V and 5V logic, which made integration into my setup a breeze. Having six in the pack was perfect—it gave me exactly what I needed for all three doors and left a few extras for future projects. Great value and solid performance.
Busy Bee
Reviewed in the United States on May 11, 2025
Picked these up for use as wheel sensors in my robot builds — they’re small, responsive, and easy to wire up. Detected magnets cleanly with no false triggers so far. Six-pack gives plenty of room to experiment.
Signus
Reviewed in the United States on May 10, 2025
This review is for the "KY-003 Hall Effect Sensor Module A3144E Hall Effect Magnetic Sensor DC 3.3V-5V Pressure Sensors 6pcs for Arduino."If you're looking for digital hall effect sensors at a budget price for your diy projects, this is a good starting point.These sensors are not analog. They don't have a proportional output to magnetic influence. They trigger a logic 1 when a magnet enters its radious of influence (typically the front of the sensor), and return to a logic 0 when the magnet is removed.These work well and are a great way to sense a small magnet. Great value, well made and easy to use. Worthy of recommendation.
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