LD2410 mmWave radar

Lessons learned, and how to use it to detect static presence reliably using different still_energy values to signal on/true and off/false.

Writeup in progress

I have figured out a good way to get more reliable presence detection with the HLK LD2410 module.

This page will document my approach. Currently this page is a (very) early work (nearly empty) in progress.

Overview

 
NameLD2410
ManufacturerHiLink
DatasheetHLK-LD2410_manual_v1.02.pdf
Datasheet (B variant)HLK-LD2410B_manual_v1.04.pdf
Serial protocolHLK-LD2410_Serial_Communication_Protocol_v1.02.pdf
Serial protocol (B variant)HLK-LD2410B_manual_v1.04.pdf

Variants

There are several variants of the LD2410, one without BLE (preferable):

  • LD2410
  • LD2410B