Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Frequency	24GHz ISM Band
Detection Range	0.5m to 8m (Adjustable)
Connectivity	Bluetooth 5.0 LE
Interface Type	UART / GPIO
Supply Voltage	5V DC ±5%
Current Consumption	< 60mA (Active Mode)
Dimensions	25mm x 25mm x 3mm
Antenna Type	On-board PCB Antenna
Application Scenario	Smart Lighting, HVAC Control, Security
Package Contents	1x LD2410D-B Module, 1x Pin Header

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Great value, minor learning curve

The hardware quality is excellent for the price. It took me a little while to understand the UART protocol documentation, but once connected to my ESP32, it works flawlessly. Detection range is as advertised.

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for my smart home project

This sensor is incredibly sensitive and accurately detects even slight movements like breathing. The Bluetooth configuration via the app made setting up detection zones a breeze. Highly recommended for DIY automation.

Anonymous

Mar 26, 2026

Rating: 5/5

Excellent documentation support

The datasheet and example code provided by Hi-Link made integration straightforward. The module responds quickly to presence changes, making it ideal for automatic lighting control in hallways.

Anonymous

Mar 22, 2026

Rating: 5/5

Superior to PIR sensors

Finally switched from PIR to this radar module. The difference is night and day; it no longer turns off the lights when I'm sitting still reading. The ability to filter out static objects is a game changer.

Anonymous

Mar 13, 2026

Rating: 5/5

Compact and powerful

Impressed by how small this module is while delivering such robust performance. The 24GHz frequency penetrates thin materials well, allowing me to hide it behind a plastic cover without losing accuracy.

Anonymous

Mar 10, 2026

Rating: 4/5

Solid integration with Home Assistant

Works great with ESPHome and Home Assistant. The presence detection is very reliable. I deducted one star only because the default sensitivity settings needed some tweaking for my specific room layout.

5 FAQ

Q: How many targets can this sensor track simultaneously?

A: The LD2410D-B can detect and track multiple moving targets simultaneously within its field of view. The exact number depends on the complexity of the scene and the configured resolution, but it handles typical room occupancy very well.

Q: Is there a mobile app available to configure the sensitivity zones?

A: Yes, Hi-Link provides a dedicated Android and iOS app that connects via Bluetooth. You can use it to visualize the detection map, adjust sensitivity, and set static/dynamic target thresholds without writing code.

Q: What is the maximum baud rate supported for UART communication?

A: The module supports standard UART baud rates including 9600, 19200, 38400, 57600, and 115200 bps. The default factory setting is usually 115200 bps.

Q: Does this module work with 3.3V logic microcontrollers?

A: The module operates on 5V power, but the TX/RX GPIO pins are 3.3V tolerant. However, for stable communication with 3.3V MCUs like ESP32 or STM32, we recommend using a level shifter if your MCU is not 5V tolerant on input pins.

Q: Can this sensor detect people through a wooden door?

A: The LD2410D-B can detect motion through thin non-metallic materials like drywall or thin wood, but thick solid wood doors may significantly attenuate the signal. We recommend testing in your specific installation environment for best results.

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