{"product_id":"ky-024-linear-hall-sensor-module-analog-digital-arduino","title":"KY-024 Linear Magnetic Hall Sensor Module — Analog + Digital Output, Arduino Speed \u0026 Position","description":"\u003ch2\u003eKY-024 Linear Magnetic Hall Effect Sensor Module — Analog + Digital Output\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eKY-024\u003c\/strong\u003e is a linear Hall effect sensor module that detects magnetic field strength and outputs both an \u003cstrong\u003eanalog voltage\u003c\/strong\u003e (proportional to field intensity) and a \u003cstrong\u003edigital signal\u003c\/strong\u003e (threshold-triggered via onboard comparator). An adjustable potentiometer sets the digital trigger sensitivity — ideal for Arduino speed detection, position sensing, and proximity switching.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor IC\u003c\/td\u003e\n\u003ctd\u003eLinear Hall Effect IC (A3144 compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V – 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Output\u003c\/td\u003e\n\u003ctd\u003e0V – VCC (proportional to field strength)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Output\u003c\/td\u003e\n\u003ctd\u003eHIGH \/ LOW (adjustable threshold)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity Adjustment\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LEDs\u003c\/td\u003e\n\u003ctd\u003ePower LED + Digital output LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e4-pin (VCC, GND, DO, AO)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Size\u003c\/td\u003e\n\u003ctd\u003e~15 × 36mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose KY-024?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Output\u003c\/strong\u003e — Analog output for field strength measurement + digital output for threshold detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Sensitivity\u003c\/strong\u003e — Potentiometer tunes digital trigger point for different magnet strengths\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Feedback\u003c\/strong\u003e — Onboard LED lights when digital threshold is exceeded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.3V \u0026amp; 5V Compatible\u003c\/strong\u003e — Works with Arduino, ESP32, STM32, Raspberry Pi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Response\u003c\/strong\u003e — Analog output varies linearly with magnetic flux density\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWheel speed detection (bicycle speedometer, motor RPM counter)\u003c\/li\u003e\n\u003cli\u003eMagnetic position sensing (end-stop detection, rotary encoder)\u003c\/li\u003e\n\u003cli\u003eProximity switch for magnetic targets\u003c\/li\u003e\n\u003cli\u003eCurrent sensing via magnetic field of a conductor\u003c\/li\u003e\n\u003cli\u003eContactless door\/window open-close detection\u003c\/li\u003e\n\u003cli\u003eBrushless motor commutation sensing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eArduino Wiring\u003c\/h3\u003e\u003cp\u003eVCC → 5V, GND → GND, DO → digital pin (interrupt-capable for speed counting), AO → analog pin.\u003cbr\u003eFor RPM: attach magnet to rotating shaft, count DO pulses per second with \u003ccode\u003eattachInterrupt()\u003c\/code\u003e.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: What magnet type works best with KY-024?\u003c\/strong\u003e\u003cbr\u003eA: Any permanent magnet (neodymium N35+ recommended). Bring the magnet face within 5–10mm of the sensor IC for reliable triggering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can KY-024 detect both North and South poles?\u003c\/strong\u003e\u003cbr\u003eA: Yes — the linear Hall IC responds to both polarities. North pole increases analog output above midpoint; South pole decreases it below midpoint.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× KY-024 Linear Hall Effect Sensor Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"1PCS","offer_id":46991486877931,"sku":"3:201010228#1PCS","price":6.96,"currency_code":"USD","in_stock":true},{"title":"5PCS","offer_id":46991486910699,"sku":"3:1981284404#5PCS","price":11.56,"currency_code":"USD","in_stock":true},{"title":"10PCS","offer_id":46991486943467,"sku":"3:18247432443#10PCS","price":19.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ky024-linear-hall-sensor.webp?v=1761538804","url":"https:\/\/keszoox.com\/products\/ky-024-linear-hall-sensor-module-analog-digital-arduino","provider":"Keszoox","version":"1.0","type":"link"}