Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Model Number | LD2410B |
| Radar Frequency | 24GHz mmWave |
| Operating Voltage | 5V DC |
| Operating Current | Typically 75mA |
| Detection Range | 0.5m to 5m |
| Detection Angle | 120 Degrees |
| Communication Interface | UART TTL / Bluetooth |
| Configuration Method | Bluetooth Mobile App |
| Dimensions | 36 x 20 x 5 mm |
| Primary Application | Smart Home Presence Detection |
Anonymous
Mar 05, 2026
Rating: 4/5
Good but needs tuning
Works well overall. Had to spend some time adjusting the sensitivity gates in the app to avoid false positives from ceiling fans. Once tuned, it's solid.
Anonymous
Feb 23, 2026
Rating: 5/5
Very Sensitive
The sensitivity is impressive. It detects breathing movements which helps keep the lights on when I'm reading. Bluetooth configuration was straightforward.
Anonymous
Feb 12, 2026
Rating: 5/5
Great Upgrade from PIR
Finally a sensor that doesn't turn off the lights while I'm working at my computer. The micro-motion detection is a game changer for automation.
Anonymous
Jan 29, 2026
Rating: 5/5
Reliable Module
Been running this for three months without issues. The UART output is clean and easy to parse with an ESP32. Highly recommend for DIY projects.
Anonymous
Jan 29, 2026
Rating: 5/5
Perfect for Home Assistant
Integrated this into my smart home setup easily. The presence detection is much better than standard PIR sensors. It knows I'm sitting at my desk even when I'm not moving much.
Q: Can it detect presence through a thin wall?
A: No, mmWave radar signals cannot penetrate walls. It requires a line of sight within the detection angle.
Q: Is this compatible with Home Assistant?
A: Yes, this module is widely used with Home Assistant via ESPHome or native UART integration.
Q: What power supply do you recommend?
A: A stable 5V DC power supply capable of delivering at least 100mA is recommended for stable operation.
Q: Does the heartbeat feature measure BPM?
A: No, the heartbeat detection is used for presence confirmation via micro-motions, not for medical heart rate monitoring.
Q: How do I update the firmware?
A: Firmware updates and configuration are handled via the Bluetooth mobile app provided by the manufacturer.
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