Attributes

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

5 reviews

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.

5 FAQ

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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