Your cart is empty.
Your cart is empty.Product Description
EC Buying also focuses on providing customers with comprehensive services.
We have a professional sales team, which can provide customers with timely and accurate product consultation, and after-sales service.
We always put customers at the center, and strive to create greater value for customers.
EC Buying, are always committed to innovation and breakthroughs in the field of electronic components, providing electronic component products to global customers with a professional, focused, and focused attitude.
We have a wide range of product lines, covering various electronic components such as module, development board, resistors, capacitors, diodes, transistors, integrated circuits, etc., meeting the needs of different industries and fields.
- Equipped with single chip intelligent millimeter wave sensor SoC
and intelligent algorithm firmware
- Ultra small module size: 20mm x 20mm
- Load default human sensing configuration, plug and play
- The 24GHz ISM frequency band can be accessed through FCC CE,
- Non Commission Spectrum Regulation Certification
- 3.3V power supply, supporting a wide voltage range of 3.0V to 3.6V
- Average working current 50 mA
- The detection target is a moving or micro moving human body Real-time reporting of detection results provide visualization tools to support configuration of detection distance intervals, sensitivity settings between
- partitions, and result reporting time
- Supports sensing range division and completely shields any interference outside the range
- Proximity 0.2m induction, no detection area
- The longest distance for human motion sensing is 8 meters
Sparky
Reviewed in the United States on February 1, 2025
I bought several for a project and they work perfectly. The software was tricky to track down but I found everything I need. Google is your friend.
Scott S
Reviewed in the United States 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.
A. B.
Reviewed in the United States on June 9, 2024
A wide variety of 24Ghz proximity sensors are available from this and other sellers here, and it can be tricky to pick which one you want to work with. For me, the biggest criteria is the connector, because a lot of them unexpectedly have a weird pitch that doesn't match usual breadboard wiring. This sensor is less capable than some, but it's also delightfully small and affordable, with a five pin connector that's relatively straightforward..... relatively. As another reviewer helpfully stated, there are multiple versions of this sensor and pinouts vary. ESPHome's site is indeed a useful resource, and another useful bit of knowledge is that the OEM for this module is a major vendor called Hi-Link that has their own web presence. Searching for the full part number HLK-LD2420 should take you right to the product page there with a bit more information, including sensing distances/patterns to expect with it.The actual sensor module is great, but as with so many products like this, documentation leaves a lot to be desired. It would be nice to see the vendor provide at least one accurate datasheet in the product listing here, but at least information is out there if you go digging.
Kyle
Reviewed in the United States on June 27, 2024
This LD2420 Radar Sensor Module is a fascinating piece of technology for anyone interested in incorporating advanced motion detection into their projects. The 24GHz millimeter-wave radar technology is incredibly sensitive, able to detect even the slightest movements, making it ideal for smart home applications like presence detection, security systems, or even touchless interfaces. The 8-meter range provides ample coverage for most indoor environments, and the 3.3V operating voltage makes it compatible with a wide range of microcontrollers. I've been experimenting with this sensor for a smart lighting project, and it's been working flawlessly, accurately detecting motion and triggering the lights as intended.
P. Larsen
Reviewed in the United States 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) 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.
Recommended Products