{"product_id":"hi-link-hlk-ld2450-24ghz-radar-sensor-module-with-bluetooth","title":"Hi-link Hlk-ld2450 24ghz Radar Sensor Module With Bluetooth","description":"\u003cp\u003eThis sensor serves as a replacement for a PIR sensor and works on the basis of microwaves and the doppler effect. Due to a difference in speed, this sensor can detect motion, this also works through almost all materials except metal. The sensor status can be read via the UART interface or via Bluetooth to read out more information such as detection distance.\u003c\/p\u003e\n\u003cp\u003eThe sensor can be used in different ways:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYou can use the sensor with ESPHome via the following library:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/github.com\/TillFleisch\/ESPHome-HLK-LD2450\" target=\"_blank\" rel=\"noopener\" title=\"Github - tillfleisch\/esphome-hlk-ld2450: esphome support for the hi-link hlk-ld2450 millimeter wave sensor (external component) with support for custom zones using convex polygons.\"\u003eESPHome Hi-Link HKL-LD2450\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eYou can configure and update this sensor via the HLKRadarTool app on Android\/iOS.\u003c\/li\u003e\n\u003cli\u003eYou can read the sensor with a microcontroller such as an Arduino via the following library:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/github.com\/0ingchun\/arduino-lib_HLK-LD2450_Radar\" target=\"_blank\" rel=\"noopener\" title=\"Github - 0ingchun\/arduino-lib_hlk-ld2450_radar: arduino communication driver for hilink hlk-ld2450 human body has inductive radar\"\u003earduino-lib_HLK-LD2450_Radar\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSee the following page for more information:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/drive.google.com\/drive\/folders\/1kTt0Z3hjKKrIF3OCIDGdwQ4KotDJ8SGA\" target=\"_blank\" rel=\"noopener\" title=\"Update your browser to use google drive and other apps - google drive help\"\u003eDrive\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eCheck the tab \"Downloads\" for more information and\/or downloads.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency: 24 GHz ISM band (24–24.25 GHz), using FMCW modulation and 250 MHz sweep bandwidth. :contentReference[oaicite:0]{index=0}\u003c\/li\u003e\n\u003cli\u003eUltra-compact size: 15 × 44 mm. :contentReference[oaicite:1]{index=1}\u003c\/li\u003e\n\u003cli\u003eDetection range up to 6 m (wall-mounted). :contentReference[oaicite:2]{index=2}\u003c\/li\u003e\n\u003cli\u003eWide coverage: ±60° azimuth, ±35° elevation. :contentReference[oaicite:3]{index=3}\u003c\/li\u003e\n\u003cli\u003eCaptures micro-movements; unaffected by environment (light, temperature, humidity). :contentReference[oaicite:4]{index=4}\u003c\/li\u003e\n\u003cli\u003ePenetrates non-metal enclosures—no surface openings required. :contentReference[oaicite:5]{index=5}\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cdiv\u003eIdeal for smart home, commercial, and industrial automation uses:\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003ePresence-aware control of lighting, HVAC, and appliances.\u003c\/li\u003e\n\u003cli\u003eSmart toilets with automatic lid control.\u003c\/li\u003e\n\u003cli\u003eDoorway detection or proximity-based interactions in offices and public spaces. :contentReference[oaicite:6]{index=6}\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower: 5 V DC input; \u0026gt;200 mA current. :contentReference[oaicite:7]{index=7}\u003c\/li\u003e\n\u003cli\u003eInterfaces: UART serial output, default baud rate 256,000; 1 stop bit, no parity. :contentReference[oaicite:8]{index=8}\u003c\/li\u003e\n\u003cli\u003eData Rate: 10 Hz (10 frames per second). :contentReference[oaicite:9]{index=9}\u003c\/li\u003e\n\u003cli\u003eOperating Temp: –40 °C to +85 °C. :contentReference[oaicite:10]{index=10}\u003c\/li\u003e\n\u003cli\u003eDimensions: 15 mm × 44 mm. :contentReference[oaicite:11]{index=11}\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Usage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupports wall-mount setup at 1.5–2 m height for optimal coverage. :contentReference[oaicite:12]{index=12}\u003c\/li\u003e\n\u003cli\u003eEnsure antenna faces the detection zone, without obstructions or strong reflections. Avoid interference from fans, HVAC outlets, or swinging objects. :contentReference[oaicite:13]{index=13}\u003c\/li\u003e\n\u003cli\u003eInstall in non-metal enclosures or apply appropriate radio-transparent radome materials. :contentReference[oaicite:14]{index=14}\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSetup \u0026amp; Data Integration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComprehensive instruction manual included—for wiring, dimension specs, communication protocol, and performance data. :contentReference[oaicite:15]{index=15}\u003c\/li\u003e\n\u003cli\u003eCompatible with ESPHome and Home Assistant via ESPHome component or external library. Requires firmware V2.02.23090617+ and proper UART configuration. :contentReference[oaicite:16]{index=16}\u003c\/li\u003e\n\u003cli\u003eCommunity projects (e.g., Hackster.io) demonstrate practical use—for tracking individuals in zones, applying custom coordinate transformations, or building enclosure housings. :contentReference[oaicite:17]{index=17}\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose HLK-LD2450?\u003c\/h3\u003e\n\u003cdiv\u003eThanks to its compact form factor, high sensitivity, and robust detection in varied conditions, the HLK-LD2450 offers a superior, cost-effective replacement for PIR sensors—especially where fine movement detection, distance measurement, and concealment are essential.\u003c\/div\u003e","brand":"Digilog Electronics","offers":[{"title":"Default Title","offer_id":43962613825601,"sku":null,"price":6000.0,"currency_code":"PKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/2805\/1777\/files\/s-l1000_31a74b55-dda7-4abb-8cc7-8c4e4a1fc7b8.webp?v=1779580854","url":"https:\/\/stem.pk\/products\/hi-link-hlk-ld2450-24ghz-radar-sensor-module-with-bluetooth","provider":"stem.pk","version":"1.0","type":"link"}