{"product_id":"ky-035-hall-magnetic-sensor-module-analog-digital-output","title":"KY-035 Hall Magnetic Sensor Module - Analog \u0026 Digital Output","description":"\u003ch1\u003eKY-035 Hall Magnetic Sensor Module — Analog \u0026amp; Digital Output\u003c\/h1\u003e\n\n\u003cp\u003eThe KY-035 Hall magnetic sensor module detects magnetic fields using a Hall effect sensor. It provides both analog and digital output signals, making it versatile for proximity sensing, speed detection, and position tracking. With simple 3-pin connectivity, it's a reliable choice for microcontroller projects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSensor IC\u003c\/td\u003e\n\u003ctd\u003eA3144 or equivalent Hall effect sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e4.5V – 5.5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eAnalog (magnetic field strength) \u0026amp; Digital (comparator with threshold)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003eTypically up to 10mm with a strong magnet\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e15mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e35mm × 15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMagnetic door\/window open-close detector for security systems\u003c\/li\u003e\n  \u003cli\u003eRPM counter for motors using a magnet on the shaft\u003c\/li\u003e\n  \u003cli\u003eNon-contact limit switch for CNC machines or 3D printers\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-led-bar-graph-volume-meter\"\u003eMagnetic field visualizer with an LED bar graph\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe KY-035 works with any microcontroller that has ADC and digital I\/O, such as Arduino Uno, ESP32, and Raspberry Pi Pico. The analog output connects to an ADC pin, while the digital output triggers when the magnetic field exceeds the potentiometer-set threshold. It operates at 5V logic; for 3.3V boards, use a level shifter on the digital pin if needed.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 5V, GND to ground, and the analog pin (A0) or digital pin (D0) to your microcontroller. The on-board potentiometer adjusts the digital output sensitivity — turn clockwise to increase the trigger threshold. Avoid placing the sensor near large metal objects that may distort magnetic fields.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery 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.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino Uno?\u003c\/summary\u003e\u003cp\u003eYes, the KY-035 works directly with Arduino Uno. Connect the analog output to A0 and the digital output to any digital pin, and use the analogRead() or digitalRead() functions.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between analog and digital output pins?\u003c\/summary\u003e\u003cp\u003eThe analog pin outputs a voltage proportional to the magnetic field strength, while the digital pin goes HIGH or LOW when the field crosses the threshold set by the potentiometer.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this sensor detect both poles of a magnet?\u003c\/summary\u003e\u003cp\u003eIt depends on the specific sensor IC. The typical A3144 is a unipolar Hall sensor that responds to one magnetic pole (usually south). Check the sensor markings; some versions are omnipolar.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery 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.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444959863149,"sku":"CDN-0359","price":35.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_e3f08dc4-037b-4ae7-892b-96a9ad54f9d5.jpg?v=1781512496","url":"https:\/\/compoden.com\/products\/ky-035-hall-magnetic-sensor-module-analog-digital-output","provider":"Compoden","version":"1.0","type":"link"}