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LD2410C Human Presence Sensor

John O'Sullivan edited this page Aug 1, 2026 · 4 revisions

LD2410 Detector Family

The LD2410C is part of the LD2410 family developed by Hi-Link (HLK), which offers several radar-based sensors tailored for different presence-detection scenarios.

The LD2410 family has three members:

LD2410 – Original version with basic UART interface. LD2410B – An improved version with Bluetooth built in. LD2410C – Enhanced model combining UART and Bluetooth with more stable firmware and better configuration options. The original LD2410 and its successor, the LD2410B, laid the groundwork for the technology. A key physical difference in the LD2410C is its use of a standard 2.54mm pin pitch, a welcome change for hobbyists who often found the 1.27mm pitch of the earlier models challenging to work with on standard breadboards and perfboards.

All three models are equipped with UART communication capabilities, allowing them to interface with a host computer or microcontroller. Additionally, the LD2410B and LD2410C models feature Bluetooth connectivity, complemented by Hi-Link’s HLKRadar app, available for both Android and iOS devices.

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  • Power Supply 5 VDS

  • TX – UART Transmit

  • RX – UART Receive

  • OUT – Digital Output

  • GND – Ground

  • VCC – 5 to 12 VDC

Human Presence Sensor Module FMCW 24GHz HLK-LD2410 Heartbeat Detection Sensor Intelligent Millimeter Wave Radar Sensing

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Reference

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