--- product_id: 588120301 title: "EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime..." brand: "ec buying" price: "€ 14.44" currency: EUR in_stock: null reviews_count: 8 category: "Ec Buying" url: https://www.desertcart.fr/products/588120301-ec-buying-ld2420-radar-sensor-module-24ghz-ism-human-body store_origin: FR region: France --- # 3.3V low power, 50mA 8m max sensing distance 24GHz radar frequency EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime... **Brand:** ec buying **Price:** € 14.44 **Availability:** ❌ Out of Stock ## Summary > 📡 Stay ahead of the curve with radar precision that senses what others miss! ## Quick Answers - **What is this?** EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime... by ec buying - **How much does it cost?** € 14.44 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/588120301-ec-buying-ld2420-radar-sensor-module-24ghz-ism-human-body) ## Best For - ec buying enthusiasts ## Why This Product - Trusted ec buying brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Real-Time Motion Refresh:** Instantly updates detection results, keeping your smart systems reactive and always in the know. - • **Compact & Energy Efficient:** Lightweight silicon design with ultra-low 3.3V power consumption, ideal for continuous operation in modern smart devices. - • **Customizable Sensing Range:** Easily adjust detection distance and sensitivity to fit any indoor space, ensuring no movement goes unnoticed. - • **Plug & Play Smart Integration:** Seamlessly connects via GPIO and UART interfaces, perfect for AIoT and smart home setups without hassle. - • **Precision Micromotion Detection:** Detects even the slightest human micro-movements with ±0.5m accuracy for smarter, responsive environments. ## Overview The LD2420 Radar Sensor Module is a cutting-edge 24GHz millimeter wave radar designed for indoor human motion detection up to 8 meters. Featuring advanced proprietary signal processing, it accurately senses micro and macro human movements with ±0.5m precision. Its low power 3.3V operation and flexible GPIO/UART interfaces make it a perfect fit for AIoT smart home applications, delivering real-time motion updates in a compact, surface-mount form factor. ## Description Buy EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millimeter Wave Radar Sensor Module AIOT Smart Home 8M 3.3V 50A: Radar Detectors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Works with esphome and home assistant - I've used two of these and they work well with home assistant and esphome. The recognized movement at a fair distance, say 30ft. Lots of different options to play with in the settings. Review: Don't trust the description for this LD2420 - First - if you want to know how to hook this up and get started quickly, search for ld2420 on esphome's site. Not only will you get access to the code to see an example, but there's a very nice module page that describes all the CORRECT hookups, in English without any false/misleading information. The problem with this unit is, simply put, that two different versions exist with the same look and feel and depending on what version, the hookup is very different. The original/old version (= v1.5.3) version. This means OT1 is the TX and not OT2 and the baud rate on this unit is only 115200 - not the weird 256000 for the old version. I've found no way to tell which version the unit is by looking at it. Only once you ARE connected can you query the firmware version, and then know how to hook up the wires, and well - you get it. It's a mess. Once hooked up to an old ESP32 using TX2/RX2 for basic uart functionality I finally got the results I wanted, the unit was working. Until then I spent days talking with the vendor - who was VERY responsive but only offered a full Chinese language only documentation. Nothing for the country they sold this in. For this reason I would suggest finding another vendor - but at least you know and with the external documentation like that on esphome.io you'll make this work. This site covers the parameters fine. To understand how this unit works under the covers, you seem to have to learn chinglish as you auto-translate documents in Chinese. ## Features - HLK-LD2420 is a high-performance 24 GHz one transmitter, one receiver radar module - Its human body sensing algorithm adopts millimeter wave radar distance measurement technology and advanced proprietary signal processing technology of the S3 series chip, achieving precise perception of motion, micro motion, and standing human bodies. - HLK-LD2420 is mainly used to perceive whether there is movement or micro movement of the human body in the indoor scene perception area, and to refresh the detection results in real-time. - It has a maximum sensing distance of 8m for the moving human body, and can easily configure the sensing distance range, sensing sensitivity in different intervals, and refresh time - Supports GPIO and UART interfaces, plug and play, and flexibly applies to different intelligent scenarios and terminal products. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CLCTT2YV | | Best Sellers Rank | #239 in Radar Detectors | | Brand | EC Buying | | Current Rating | 50 Milliamps | | Date First Available | October 19, 2023 | | Item Weight | 0.176 ounces | | Item model number | LD2420 | | Manufacturer | EC Buying | | Material | Silicon | | Maximum Supply Voltage | 3.6 Volts (DC) | | Measurement Accuracy | ±0.5 meters | | Mounting Type | Surface Mount | | Output Type | Digital | | Package Dimensions | 6.89 x 4.72 x 0.67 inches | | Sensing Distance | 8 Meters | | Specific Uses For Product | Indoor human motion detection | | Style | Modern | | Upper Temperature Rating | 97 Degrees Fahrenheit | ## Product Details - **Brand:** EC Buying - **Current Rating:** 50 Milliamps - **Item Weight:** 0.01 Kilograms - **Material:** Silicon - **Style:** Modern ## Images ![EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millime... - Image 1](https://m.media-amazon.com/images/I/51w-sMG1jJL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works with esphome and home assistant *by S***S on January 18, 2025* I've used two of these and they work well with home assistant and esphome. The recognized movement at a fair distance, say 30ft. Lots of different options to play with in the settings. ### ⭐⭐⭐⭐ Don't trust the description for this LD2420 *by P***N on December 9, 2023* First - if you want to know how to hook this up and get started quickly, search for ld2420 on esphome's site. Not only will you get access to the code to see an example, but there's a very nice module page that describes all the CORRECT hookups, in English without any false/misleading information. The problem with this unit is, simply put, that two different versions exist with the same look and feel and depending on what version, the hookup is very different. The original/old version (< v1.5.3) is most likely what you'll find when googling and it will absolutely NOT work - wrong baud rate and wrong TX pins. The unit I got was the newer (>= v1.5.3) version. This means OT1 is the TX and not OT2 and the baud rate on this unit is only 115200 - not the weird 256000 for the old version. I've found no way to tell which version the unit is by looking at it. Only once you ARE connected can you query the firmware version, and then know how to hook up the wires, and well - you get it. It's a mess. Once hooked up to an old ESP32 using TX2/RX2 for basic uart functionality I finally got the results I wanted, the unit was working. Until then I spent days talking with the vendor - who was VERY responsive but only offered a full Chinese language only documentation. Nothing for the country they sold this in. For this reason I would suggest finding another vendor - but at least you know and with the external documentation like that on esphome.io you'll make this work. This site covers the parameters fine. To understand how this unit works under the covers, you seem to have to learn chinglish as you auto-translate documents in Chinese. ### ⭐⭐⭐ Great component but hard to find english calibration software *by N***Y on November 26, 2025* Worked perfect in my project, but it was hard to find an english version of the software for it. ## Frequently Bought Together - EC Buying LD2420 Radar Sensor Module 24GHz ISM Human Body Micromotion Millimeter Wave Radar Sensor Module AIOT Smart Home 8M 3.3V 50A - EC Buying LD2410C Sensor Module HLK-LD2410 Human Presence Radar Sensor Module LD2410 Millimeter Wave Radar Sensor Module Non Contact 24GHz ISM Band Serial Port IO Level Output - EC Buying LD2412 Human Presence Sensor Module 24G Wide-Angle Millimeter Wave Radar Detection Module 75° 9M Radar Sensor Module --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fr/products/588120301-ec-buying-ld2420-radar-sensor-module-24ghz-ism-human-body](https://www.desertcart.fr/products/588120301-ec-buying-ld2420-radar-sensor-module-24ghz-ism-human-body) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-04-23*