Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Radar Frequency | 24GHz ISM Band |
| Detection Range | 0.5m to 5m Adjustable |
| Field of View | 120 Degrees |
| Operating Voltage | 3.3V to 5V DC |
| Communication Interface | UART TTL / Bluetooth |
| Output Signal | GPIO Digital High/Low |
| Static Presence Detection | Supported (Breathing Motion) |
| Module Dimensions | 20mm x 20mm x 2mm |
| Operating Temperature | -20°C to 60°C |
| Compatibility | ESPHome, Home Assistant, Arduino |
Anonymous
Apr 09, 2026
Rating: 5/5
Perfect for Smart Lighting
This sensor works flawlessly with my ESP32 setup. It detects when I am sitting still at my desk, which my old PIR sensor could not do. Highly recommended for automation.
Anonymous
Apr 01, 2026
Rating: 4/5
Good sensitivity but needs tuning
The hardware is solid and detection is accurate. However, you need to spend some time configuring the sensitivity gates to avoid false positives from fans or curtains.
Anonymous
Mar 26, 2026
Rating: 3/5
Documentation could be better
The module works as advertised, but the setup guide was a bit vague regarding the Bluetooth configuration app. Had to search forums for the right steps.
Anonymous
Mar 02, 2026
Rating: 5/5
Excellent mmWave Module
Much better than standard motion sensors. It picks up breathing presence reliably. The UART interface makes integration straightforward for custom projects.
Anonymous
Feb 07, 2026
Rating: 5/5
Solves the lights off issue
Finally, my bathroom lights stay on while I am reading. The static presence detection is a game changer for smart home comfort. Fast shipping too.
Q: Does this work with 5V Arduino boards?
A: Yes, the module supports an input voltage range of 3.3V to 5V DC, so it is compatible with most 5V Arduino boards.
Q: Is Bluetooth available on all models listed?
A: Bluetooth configuration is available on the LD2410B and LD2410C variants. The LD2401 and LD2402 typically use UART only.
Q: What is the maximum detection distance?
A: The maximum detection range is approximately 5 meters, but this can be adjusted via the configuration software to suit your room size.
Q: Can it detect breathing while sleeping?
A: Yes, the 24GHz mmWave technology is sensitive enough to detect micro-movements such as breathing within the configured range.
Q: Can I mount this behind a plastic cover?
A: Yes, the radar signal can penetrate non-metallic materials like plastic or drywall, allowing for concealed installation.
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