Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	HLK-LD2410B-P
Detection Technology	24GHz mmWave Radar
Connectivity	Bluetooth 5.0 BLE
Max Detection Range	6 meters (static), 8 meters (moving)
Operating Voltage	5V DC via USB-C or GPIO
Interface Type	UART / Bluetooth
Beam Angle	±45 degrees horizontal, ±30 degrees vertical
Dimensions	39mm x 20mm x 4mm
Application Scenario	Smart Home Lighting, HVAC Control, Security
Package Contents	1x Sensor Module, 1x Antenna, 1x Pin Header

6 reviews

Anonymous

Mar 21, 2026

Rating: 4/5

Solid performance through walls

Impressed by the penetration capability. It can detect presence through thin drywall, which helps in my specific installation case. Just ensure you tune the sensitivity to avoid false positives from adjacent rooms.

Anonymous

Mar 17, 2026

Rating: 5/5

Perfect for Home Automation Projects

This sensor is incredibly sensitive. I integrated it with my ESP32 to control lights in my office, and it detects even tiny movements like typing on a keyboard. The Bluetooth configuration app makes setting detection zones very easy.

Anonymous

Mar 15, 2026

Rating: 5/5

Compact and powerful

Small form factor fits perfectly inside my custom 3D printed enclosures. Signal strength is good, and the antenna connection is secure. Highly recommend for IoT developers.

Anonymous

Mar 14, 2026

Rating: 5/5

Reliable presence detection

I've tested several radar modules, and this Hi-Link version is the most consistent. The ability to distinguish between moving and static targets is a game changer for smart lighting systems.

Anonymous

Mar 09, 2026

Rating: 4/5

Great value, minor learning curve

Works exactly as described. It took me a little while to understand the UART protocol documentation, but once configured, it's rock solid. Much better than passive infrared sensors for detecting stationary people.

Anonymous

Mar 05, 2026

Rating: 5/5

Best in class for the price

Arrived quickly and well-packaged. The included pin headers were a nice touch. Firmware updates via Bluetooth are seamless. This is now my go-to sensor for all new projects.

5 FAQ

Q: Can I use this directly with Arduino Uno?

A: Yes, you can connect it to an Arduino Uno using the UART pins (TX/RX). However, note that the module operates at 3.3V logic levels, so you may need a logic level converter if your board is strictly 5V.

Q: What is the maximum baud rate supported?

A: The default baud rate is 115200, but the module supports configurable rates up to 256000 bps for faster data throughput if your application requires it.

Q: What is the power consumption in standby mode?

A: The typical current consumption is approximately 45mA during active scanning. There isn't a deep sleep mode controlled internally; power management is typically handled by the host MCU.

Q: Does this module require an external antenna?

A: Yes, the HLK-LD2410B-P requires the included external antenna to be connected via the IPEX connector for proper operation. Do not operate the module without the antenna attached.

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

A: Yes, Hi-Link provides a dedicated Android and iOS app called 'HLK-LD2410' that connects via Bluetooth to visualize the radar output and adjust sensitivity gates and thresholds.

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