{"id":354263,"date":"2026-08-11T15:30:23","date_gmt":"2026-08-11T13:30:23","guid":{"rendered":"https:\/\/vitacomoda.it\/elettronica\/prodotto\/nuovo-modulo-radar-di-rilevamento-della-presenza-umana-del-sensore-mmwave-a-basso-consumo-energetico-intelligente-24g-hlk-ld2420-ad-alta-sensibilita\/"},"modified":"2026-08-11T15:30:25","modified_gmt":"2026-08-11T13:30:25","slug":"nuovo-modulo-radar-di-rilevamento-della-presenza-umana-del-sensore-mmwave-a-basso-consumo-energetico-intelligente-24g-hlk-ld2420-ad-alta-sensibilita","status":"publish","type":"product","link":"https:\/\/vitacomoda.it\/elettronica\/prodotto\/nuovo-modulo-radar-di-rilevamento-della-presenza-umana-del-sensore-mmwave-a-basso-consumo-energetico-intelligente-24g-hlk-ld2420-ad-alta-sensibilita\/","title":{"rendered":"Nuovo modulo Radar di rilevamento della presenza umana del sensore MMwave a basso consumo energetico intelligente 24G HLK-LD2420 ad alta sensibilit\u00e0"},"content":{"rendered":"

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1. Product introduction<\/span><\/strong><\/p>\n

HLK-LD2420 is a high-performance 24 GHz radar module with a send-and-receive antenna. Its human body sensing algorithm adopts millimeter-wave radar distance measurement technology and advanced proprietary signal processing technology of S3 series chips to achieve precise perception of movement, micro-movement and standing human body.<\/span><\/p>\n

HLK-LD2420 is mainly used to detect whether there is movement or slight movement of the human body in the indoor scene perception area, and refresh the detection results in real time. It has a maximum sensing distance of 8 m for a moving human body. It can easily configure the sensing distance range, sensing sensitivity in different intervals and refresh time. It supports GPIO and UART interfaces, plug and play, and can be flexibly applied to different smart scenarios and terminal products. .<\/span><\/p>\n\n\n\n\n
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2.\u00a0<\/span><\/span><\/span>Product\u00a0features and\u00a0benefits<\/span><\/strong><\/span><\/span><\/p>\n

2.1\u00a0<\/span><\/span>Features<\/span><\/strong><\/span><\/p>\n

l\u00a0Equipped with single-chip intelligent millimeter wave sensor SoC and intelligent algorithm firmware<\/span><\/span><\/span><\/p>\n

l\u00a0Ultra-small module size: 20 mm \u00d7 20 mm<\/span><\/span><\/span><\/p>\n

l\u00a0Load the default human sensor configuration, plug and play<\/span><\/span><\/span><\/p>\n

l\u00a024 GHz ISM frequency band, certified by FCC, CE, and non-committee spectrum regulations<\/span><\/span><\/span><\/p>\n

l\u00a03.3 V power supply, support 3.0 V ~ 3.6 V wide voltage range<\/span><\/span><\/span><\/p>\n

l\u00a0Average operating current 50 mA<\/span><\/span><\/span><\/p>\n

l\u00a0The detection target is moving and micro-moving human body<\/span><\/span><\/span><\/p>\n

l\u00a0Real-time reporting of detection results<\/span><\/span><\/span><\/p>\n

l\u00a0Provide visualization tools to support the configuration of detection distance intervals, setting sensitivity and result reporting time between partitions<\/span><\/span><\/span><\/p>\n

l\u00a0Supports the division of sensing range, completely shielding any interference outside the range<\/span><\/span><\/span><\/p>\n

l\u00a0Short-range 0.2 m induction, no detection blind zone<\/span><\/span><\/span><\/p>\n

l\u00a0The longest distance of human motion sensing is 8 m<\/span><\/span><\/span><\/p>\n

l\u00a0Large detection angle, coverage reaches \u00b160\u00b0<\/span><\/span><\/span><\/p>\n

l\u00a0Support various installation methods such as ceiling hanging and wall hanging<\/span><\/span><\/span><\/p>\n

Independent configuration of trigger and hold state, strong anti-interference ability<\/span><\/p>\n

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3. Application scenarios<\/strong><\/span><\/p>\n

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\n The HLK-LD2420 human body sensing sensor can detect and identify moving, standing and still people, and is widely used in various AIoT scenarios, covering the following types:<\/span>\n<\/div>\n
\n Smart home<\/strong><\/span>\n<\/div>\n
\n Perceive the existence and distance of the human body, and report the detection results for the main control module to intelligently control the operation of home appliances.<\/span>\n<\/div>\n
\n Smart business<\/strong><\/span>\n<\/div>\n
\n Identify the approach or distance of the human body within the set distance interval; turn on the screen in time, and keep the device always on when the human body is present.<\/span>\n<\/div>\n
\n Smart security<\/strong><\/span>\n<\/div>\n
\n Induction access control, building intercom, electronic peephole, etc.<\/span>\n<\/div>\n
\n Smart lighting<\/strong><\/span>\n<\/div>\n
\n Recognize and sense the human body, accurately detect the position, and can be used for lighting equipment in public places (sensing lights, bulb lights, etc.).
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4. Hardware Description<\/strong><\/span><\/p>\n

The picture below shows the front and back of the module. The module is equipped with 5 pin holes (factory does not come with pins) called J2 for power supply and communication; J1 is the SWD J1 is the SWD interface, which is used for MCU program burning and debugging.<\/span><\/p>\n

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J#PIN#<\/strong><\/span><\/p>\n<\/td>\n

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Name<\/strong><\/span><\/p>\n<\/td>\n

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Function<\/strong><\/span><\/p>\n<\/td>\n

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J1Pin1<\/span><\/p>\n<\/td>\n

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GND<\/span><\/p>\n<\/td>\n

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Grounding<\/span><\/p>\n<\/td>\n

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J1Pin2<\/span><\/p>\n<\/td>\n

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DIO<\/span><\/p>\n<\/td>\n

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SWDInterface Data Cable<\/span><\/p>\n<\/td>\n

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0 ~ 3.3V<\/span><\/p>\n<\/td>\n<\/tr>\n

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J1Pin3<\/span><\/p>\n<\/td>\n

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CLK<\/span><\/p>\n<\/td>\n

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SWDInterface clock line<\/span><\/p>\n<\/td>\n

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0 ~ 3.3V<\/span><\/p>\n<\/td>\n<\/tr>\n

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J1Pin4<\/span><\/p>\n<\/td>\n

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3V3<\/span><\/p>\n<\/td>\n

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Power input<\/span><\/p>\n<\/td>\n

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3.0 V ~ 3.6V\uff0cTyp.3.3V<\/span><\/p>\n<\/td>\n<\/tr>\n

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4.1 Dimension<\/strong><\/span><\/p>\n

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All units are mm. The plate thickness of the module is 1.2 mm with a tolerance of \u00b110%.<\/span><\/p>\n

<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

1. Product introduction HLK-LD2420 is a high-performance 24 GHz radar module with a send-and-receive antenna. Its human body sensing algorithm […]<\/p>\n","protected":false},"featured_media":354264,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[127],"product_tag":[],"class_list":["post-354263","product","type-product","status-publish","has-post-thumbnail","product_cat-elettronica-tech-sensori","desktop-align-left","tablet-align-left","mobile-align-center","first","instock","sale","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/product\/354263","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/comments?post=354263"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/media\/354264"}],"wp:attachment":[{"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/media?parent=354263"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/product_brand?post=354263"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/product_cat?post=354263"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/vitacomoda.it\/elettronica\/wp-json\/wp\/v2\/product_tag?post=354263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}