ET-S06

LD2410C mmWave Presence Carrier

Name: LD2410C mmWave Presence Carrier
Brand: ElectroTrical
SKU: ET-S06
Price: 15.00 AED
Availability: OutOfStock

24 GHz human-presence radar carrier, level-shifted UART

AED 15.00

Out of stock

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Download datasheet (PDF)

Overview Key features Specifications Performance Pinout

Overview

24 GHz human-presence radar carrier, level-shifted UART

The ET-S06 is built around the Hi-Link HLK-LD2410C (24GHz FMCW, presence + motion, up to ~5m), bought separately. It connects over UART 256000 baud 8N1 + OUT GPIO and is powered from 5V only (5.0–5.5V) on VIN.

Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.

Good for

Room occupancy for lighting and HVAC
Detecting people who sit still
Smart-home automations

Key features

What makes it different

Module

Hi-Link HLK-LD2410C (24GHz FMCW, presence + motion, up to ~5m), bought separately

Interface

UART 256000 baud 8N1 + OUT GPIO

Supply

5V only (5.0–5.5V) on VIN

Logic

3.3V (default) or 5V via JP2

Open documentation

Schematic, BOM and layout notes published for every board.

Breadboard friendly

Standard 2.54 mm pitch and M2.5 mounting holes.

Specifications

Technical specifications

Device
Module	Hi-Link HLK-LD2410C (24GHz FMCW, presence + motion, up to ~5m), bought separately
Interface	UART 256000 baud 8N1 + OUT GPIO
Supply	5V only (5.0–5.5V) on VIN
Logic	3.3V (default) or 5V via JP2

Board
Size	38.1 × 25.4 mm
Mounting	4 × M2.5 holes, 2.54 mm from each corner
Connectors	6-pin 2.54 mm header
Revision	Rev B

Software
Libraries	ESPHome `ld2410` component (Home Assistant), Arduino `ld2410` libraries, Hi-Link app over Bluetooth

Solder jumpers
JP1 (default Closed)	Cut to turn off the power LED
JP2 (default A–C bridged (3V3))	Cut A–C and bridge B–C for 5V-logic hosts (Arduino Uno)

Performance

Detection range by gate size

Maximum configurable range8 distance gates × gate size, per the Hi-Link LD2410C protocol. Reliable presence detection is about 5 m in practice.

0.75 m gates (default)6 m

0.2 m gates (fine)1.6 m

Pinout

Pin map and connections

Pin	Name	Type	Function
1	`5V`	Power	5.0–5.5V input. Not 12V (LDO limit)
2	`GND`	Ground	Ground
3	`TX`	UART	Module data out → host RX
4	`RX`	UART	Host TX → module data in
5	`OUT`	Power	High = presence
6	`3V3`	Power	Low-side reference out, up to ~200mA spare

I²C pull-ups (10 kΩ) are on the board; cut JP2 to remove them.

Mechanical

Dimensions and what's in the box

Board 38.1 × 25.4 mm with M2.5 holes — Top view · 38.1 × 25.4 mm

In the box

1 × ET-S06 LD2410C mmWave Presence Carrier (assembled)
1 × 6-pin 2.54 mm male header, unsoldered

Getting started

Wire the header: 5V, GND, TX, RX, OUT, 3V3
Libraries: ESPHome ld2410 component (Home Assistant), Arduino ld2410 libraries, Hi-Link app over Bluetooth

Compare

Which presence sensor?

	LD2410C mmWave Presence Carrier (this board)This board	ET-S34 AM312 Mini PIR Carrier	ET-S36 AMG8833 Grid-EYE Thermal Sensor	ET-S35 MLX90640 Thermal Camera (110°)
What it does	24 GHz human-presence radar carrier, level-shifted UART	Mini PIR motion carrier with activity LED	8×8 thermal array for presence detection	32×24 pixel thermal camera over I²C
Interface	UART 256000 baud 8N1 + OUT GPIO	—	I²C 0x68 / 0x69 (JP3), 400kHz	I²C 0x33 (EEPROM-programmable), up to 1MHz
Best for	Room occupancy for lighting and HVAC	Motion-activated lighting	Presence detection without a camera	Thermal imaging for electronics
Price	15 AED	12 AED	139 AED	229 AED

Downloads

Documents and design files

PDFET-S06 schematicRev B

STEP3D modelComing soon

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