Description
Reviews
| 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 |
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.
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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