Analog Hall Magnetic Sensors KY035

The Analog Hall Magnetic Sensors KY035 module is a small board with a linear (analog) Hall effect sensor that measures the strength and polarity of a nearby magnetic field. Instead of a simple on/off signal, it gives a voltage that rises or falls as a magnet approaches, so an Arduino or ESP32 can tell how close the magnet is and which pole is facing it.

Analog Hall Magnetic Sensors KY035 Specifications

• Sensor: 49E linear Hall effect sensor
• Output: analog voltage, about half the supply with no magnet nearby
• Response: voltage rises with one magnetic pole and falls with the other
• Supply voltage: 3.3–5 V DC
• Pins: S (signal), + (VCC, middle) and − (GND)
• Module code: KY-035

Analog Hall Magnetic Sensors KY035 Applications

• Measuring magnet distance and position
• Contactless joysticks, throttles and pedals
• Showing magnetic field strength in physics lessons
• RPM counting with a magnet on a rotating part
• Door and lid detection with a threshold set in code

What's in the Box

• 1 × KY-035 analog Hall magnetic sensor module

Tip: Connect S to an analog input and note the reading with no magnet nearby; that is your zero point. Readings above it mean one pole is close and readings below it mean the other pole, and the further from zero, the stronger the field.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.