{"product_id":"ld2410c-24ghz-human-presence-sensor","title":"LD2410C 24GHz Human Presence Sensor","description":"\u003cp\u003eThis compact \u003cstrong\u003eLD2410C 24GHz radar module\u003c\/strong\u003e detects whether a person is \u003cstrong\u003epresent and\/or moving within an indoor space\u003c\/strong\u003e. Unlike conventional PIR motion sensors that use body heat for detection, the 24GHz \u003cspan\u003emicrowave-based \u003c\/span\u003eLD2410C can detect both obvious movement and smaller movements from someone sitting or standing relatively still.\u003c\/p\u003e\n\u003cp\u003eThe module is compatible with the LD2410C interface and communication protocol, for libraries such as Nick Reynolds' \u003ca href=\"https:\/\/github.com\/ncmreynolds\/ld2410\" rel=\"noopener\" title=\"LD2410 Arduino library\" target=\"_blank\"\u003eLD2410 Arduino library\u003c\/a\u003e. It provides a simple digital presence output for straightforward projects, along with a UART interface containing additional information such as target state, approximate distance and signal energy. It also \u003cstrong\u003esupports Bluetooth monitoring\/configuration\u003c\/strong\u003e using LD2410-compatible radar applications such as HLKRadarTool (\u003ca href=\"https:\/\/play.google.com\/store\/apps\/details\" rel=\"noopener\" title=\"Android\" target=\"_blank\"\u003eAndroid\u003c\/a\u003e \/ \u003ca href=\"https:\/\/apps.apple.com\/gb\/app\/hlkradartool\/id1638651152\" rel=\"noopener\" title=\"iOS\" target=\"_blank\"\u003eiOS\u003c\/a\u003e).\u003c\/p\u003e\n\u003cp\u003eUnlike PIR, radar can also detect through some non-metallic materials and may respond to movement beyond the intended area. Careful positioning and sensitivity adjustment may be needed to prevent detections through thin walls, doors or enclosures.\u003c\/p\u003e\n\u003cp\u003eIt's a great upgrade for home automation occupancy detection, automatic lighting, display wake-up systems and other projects that need to distinguish between an empty room and a person who is present but not moving much.\u003c\/p\u003e\n\u003cp\u003eThe module \u003cstrong\u003ecomes with a\u003c\/strong\u003e \u003cstrong\u003eheader pre-soldered\u003c\/strong\u003e and is breadboard compatible with 2.54mm-spaced pins.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e24GHz FMCW radar sensing\u003c\/li\u003e\n\u003cli\u003eDetects moving and relatively stationary people\u003c\/li\u003e\n\u003cli\u003eDetection distance of up to approximately 6m\u003c\/li\u003e\n\u003cli\u003eDigital occupied\/unoccupied output\u003c\/li\u003e\n\u003cli\u003eUART data output\u003c\/li\u003e\n\u003cli\u003eLD2410-compatible serial protocol\u003c\/li\u003e\n\u003cli\u003ePer-distance sensitivity configuration on supported firmware\u003c\/li\u003e\n\u003cli\u003eAdjustable detection distance and absence delay\u003c\/li\u003e\n\u003cli\u003eCompact PCB with 2.54mm pins pre-soldered\u003c\/li\u003e\n\u003cli\u003eTypically powered from 5V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor type\u003c\/td\u003e\n\u003ctd\u003e24GHz FMCW radar presence sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection\u003c\/td\u003e\n\u003ctd\u003eMoving and relatively stationary people\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum detection distance\u003c\/td\u003e\n\u003ctd\u003eUp to approximately 6m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterfaces\u003c\/td\u003e\n\u003ctd\u003eUART and digital presence output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUART baud rate\u003c\/td\u003e\n\u003ctd\u003eTypically 256000 baud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic level\u003c\/td\u003e\n\u003ctd\u003e3.3V UART-compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth\u003c\/td\u003e\n\u003ctd\u003eSupported (configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin spacing\u003c\/td\u003e\n\u003ctd\u003e2.54mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApproximately 22 × 16mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol compatibility\u003c\/td\u003e\n\u003ctd\u003eLD2410-compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/ncmreynolds\/ld2410\" rel=\"noopener\" title=\"LD2410 Arduino library by Nick Reynolds\" target=\"_blank\"\u003eLD2410 Arduino library by Nick Reynolds\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePinout\u003c\/h3\u003e\n\u003ctable style=\"height: 90px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 8px; height: 18px;\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"width: 34.6719px; height: 18px;\"\u003e\u003cstrong\u003eTX\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 540.844px; height: 18px;\"\u003eUART data transmitted by the radar module. Connect to the microcontroller RX pin.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 8px; height: 18px;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"width: 34.6719px; height: 18px;\"\u003e\u003cstrong\u003eRX\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 540.844px; height: 18px;\"\u003eUART data received by the radar module. Connect to the microcontroller TX pin.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 8px; height: 18px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"width: 34.6719px; height: 18px;\"\u003e\u003cstrong\u003eOUT\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 540.844px; height: 18px;\"\u003eDigital presence output. Normally HIGH when presence is detected.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 8px; height: 18px;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"width: 34.6719px; height: 18px;\"\u003e\u003cstrong\u003eGND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 540.844px; height: 18px;\"\u003eGround connection.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18px;\"\u003e\n\u003ctd style=\"width: 8px; height: 18px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"width: 34.6719px; height: 18px;\"\u003e\u003cstrong\u003eVCC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 540.844px; height: 18px;\"\u003ePower input, typically 5V.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x LD2410C 24GHz Human Presence Sensor (headers pre-soldered)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"The Pi Hut","offers":[{"title":"Default Title","offer_id":55919904358785,"sku":"106692","price":5.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/ld2410c-24ghz-human-presence-sensor-the-pi-hut-106692-1249210536.jpg?v=1784134211","url":"https:\/\/thepihut.com\/products\/ld2410c-24ghz-human-presence-sensor","provider":"The Pi Hut","version":"1.0","type":"link"}