Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | HLK-LD2410B-P |
| Detection Technology | 24GHz MMW Radar |
| Connectivity | Bluetooth 5.0 BLE |
| Max Detection Range | Up to 6 meters |
| Operating Voltage | 5V DC |
| Interface Type | UART / GPIO |
| Dimensions | 38mm x 26mm x 3mm |
| Beam Angle | ±45 degrees horizontal |
| Application Scenario | Smart Home, Lighting Control |
| Package Contents | 1x Sensor Module, 1x Antenna |
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable presence detection
I replaced several PIR sensors with these. Unlike PIR, this actually detects when someone is sitting still reading a book. Highly recommended for bathroom lighting.
Anonymous
Mar 19, 2026
Rating: 4/5
Good range and accuracy
Works well up to the stated 6 meters. I noticed slight latency in reporting 'clear' status after leaving the room, but adjustable via the config tool.
Anonymous
Mar 17, 2026
Rating: 5/5
Best in class for 24GHz
The ability to distinguish between micro-movements like breathing and actual motion is a game changer. No more lights turning off while I'm working at my desk.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for smart home automation
This radar module works flawlessly with my ESP32 project. The Bluetooth configuration app makes setting detection zones incredibly easy compared to older models.
Anonymous
Mar 14, 2026
Rating: 4/5
Great sensitivity, minor setup learning curve
The heartbeat detection is impressive and eliminates false positives from moving curtains. Took me a moment to understand the UART protocol documentation, but it works great now.
Anonymous
Mar 12, 2026
Rating: 5/5
Excellent value for money
Genuine Hi-Link module as described. The build quality is solid, and the antenna connection is secure. Integration with Home Assistant was straightforward.
Q: What is the difference between this and the non-P version?
A: The '-P' suffix indicates this package includes the external PCB antenna. The core sensor functionality and firmware capabilities are identical to the standard LD2410B.
Q: Does this module require an external antenna?
A: Yes, the HLK-LD2410B-P comes with a separate PCB antenna that must be connected to the IPEX connector on the module for proper operation.
Q: Is this compatible with 3.3V logic microcontrollers?
A: The module operates on 5V input. While the RX pin is 5V tolerant, the TX pin outputs 5V logic, so a voltage divider is recommended when connecting to 3.3V MCUs like ESP8266.
Q: Can I configure the detection distance via Bluetooth?
A: Absolutely. You can use the official Hi-Link Android or iOS app to connect via BLE and adjust max distance, gating, and sensitivity settings wirelessly.
Q: Does it support multiple target tracking?
A: This specific model is optimized for single-target presence detection and heartbeat monitoring. For multi-target tracking, please consider our LD2450 series.
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