KY-024 Linear Magnetic Hall Sensor Module | Compoden
KY-024 Linear Magnetic Hall Effect Sensor Module – Analog & Digital Output
The KY-024 is a linear magnetic Hall effect sensor module that provides both analog and digital outputs. It detects the strength and polarity of a magnetic field, making it ideal for proximity sensing, position detection, and RPM measurement. Features a potentiometer for sensitivity adjustment and signal indicator LEDs for easy debugging.
Key Specifications
| Specification | Value |
|---|---|
| Chip | Linear Hall Effect Sensor (e.g., SS49E equivalent) |
| Operating Voltage | 3.3V – 5V DC |
| Output | Analog (proportional) + Digital (threshold) |
| Detection Range | ±20 mT to ±50 mT (typical with magnet) |
| Sensitivity | Adjustable via onboard trim pot |
| Dimensions | 15 mm x 36 mm (approx.) |
What You Can Build With This
- Magnetic field strength meter using analog output and a microcontroller ADC
- Contactless RPM counter for motors, wheels, or fans
- Proximity switch with adjustable trigger point for home automation
- Non-contact linear position sensor for robotics and CNC feedback
Compatibility
The KY-024 works with 3.3V and 5V systems, making it compatible with Arduino Uno, Mega, Nano, and Raspberry Pi Pico. Connect analog output to any ADC pin for precise field strength readings, or digital output for threshold-based detection. Easily interfaces with ESP32, STM32, and other popular development boards.
Wiring Notes
For Arduino, connect VCC to 5V, GND to GND, analog output to A0, and digital output to D2. The onboard potentiometer sets the magnetic field threshold; adjust it while monitoring the digital output LED. Use a 10kΩ pull-up resistor if the digital output does not already have one (most modules include it).
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, the KY-024 operates at 5V and provides both analog and digital outputs, making it directly compatible with Arduino boards. Simply wire VCC to 5V, GND to GND, and read the analog pin for proportional magnetic field strength.
What type of magnet works best?
A neodymium magnet with a surface field of 200–500 mT provides a strong response. The sensor detects both north and south poles, with analog output varying linearly.
Can I use this for RPM measurement?
Yes, use the digital output to detect each magnet pass and calculate RPM. Attach a small magnet to the rotating part and position the sensor within 5 mm. Adjust sensitivity to ignore background fields.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items