LD2410C 24GHz Human Presence Radar Sensor

📡 24GHz mmWave radar for human presence detection
🧍 Detects both motion and stationary presence (micro-movements)
🎯 Adjustable sensing range & sensitivity
📐 Wide coverage angle for room-level monitoring
🚪 Ideal for smart lighting, occupancy automation, security
🔌 Low power operation for always-on applications
🛠️ Easy integration via UART configuration & tuning
📦 Compact module suitable for embedded/IoT projects

SKU: Ek1935 Categories: PIR / IR and Optical Sensor, Sensors Tags: PIR / IR and Optical Sensor, Sensors

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Description

LD2410C 24GHz Human Presence Radar Sensor is a high-sensitivity mmWave radar module designed to detect human presence, motion, and micro-movement (like breathing) through advanced 24GHz radar sensing. Unlike PIR sensors, the LD2410C can detect stationary people and provides more reliable occupancy sensing in smart environments.

Key Features

24GHz mmWave radar for presence + motion detection
Detects moving and stationary human presence (micro-motion capable)
Works in darkness and is less affected by temperature than PIR sensors
Adjustable detection parameters (distance/sensitivity) via configuration tools (model-dependent)
Stable performance for smart home occupancy and automation triggers
Compact module size for easy integration into devices and enclosures

Applications

Smart home occupancy sensors (lights, AC, automation scenes)
Smart switches, wall sensors, and room presence detectors
Energy-saving systems in offices and meeting rooms
Security systems and human detection alarms
Smart hotel rooms and building automation

Used In

Home Assistant / ESPHome presence projects (via MCU like ESP32/ESP8266)
Smart lighting controllers and motion + occupancy nodes
IoT gateways and embedded automation products

Package Includes

1× LD2410C 24GHz Human Presence Radar Sensor Module

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Pin Connections

1 Table

Pin Connections Table 1

Board	Sensor Pin	Connection
LD2410C	VCC/GND/RX/TX	5V / GND / board TX pin / board RX pin

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LD2410C 24GHz Human Presence Radar Sensor

7 Examples • C/C++ | Boards: Arduino Uno, Arduino Nano, Arduino Mega, ESP32, ESP8266, STM32, Raspberry Pi Pico

Wrap

LD2410C 24GHz Human Presence Radar Sensor - Arduino Uno

LD2410C 24GHz Human Presence Radar Sensor - Arduino Nano

LD2410C 24GHz Human Presence Radar Sensor - Arduino Mega

LD2410C 24GHz Human Presence Radar Sensor - ESP32

LD2410C 24GHz Human Presence Radar Sensor - ESP8266

LD2410C 24GHz Human Presence Radar Sensor - STM32

LD2410C 24GHz Human Presence Radar Sensor - Raspberry Pi Pico

📄 File: ld2410c_24ghz_human_presence_radar_sensor_-_arduino_uno.inoArduino Uno

772 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=2, TX=3 on Arduino Uno (module TX -> board RX). This also has a simple OUT pin for basic presence if you don't need the full UART protocol/library.

6#include <SoftwareSerial.h>

7SoftwareSerial RADAR_SERIAL(2, 3);

9#include <ld2410.h>

10ld2410 radar;

12void setup() {

13 Serial.begin(115200);

14 RADAR_SERIAL.begin(256000);

15 radar.begin(RADAR_SERIAL);

16}

18void loop() {

19 radar.read();

20 if (radar.isConnected()) {

21 if (radar.presenceDetected()) {

22 Serial.print("Presence detected, distance: ");

23 Serial.print(radar.movingTargetDistance() > 0 ? radar.movingTargetDistance() : radar.stationaryTargetDistance());

24 Serial.println(" cm");

25 } else {

26 Serial.println("No presence");

27 }

28 }

29}

📄 File: ld2410c_24ghz_human_presence_radar_sensor_-_arduino_nano.inoArduino Nano

773 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=2, TX=3 on Arduino Nano (module TX -> board RX). This also has a simple OUT pin for basic presence if you don't need the full UART protocol/library.

6#include <SoftwareSerial.h>

7SoftwareSerial RADAR_SERIAL(2, 3);

9#include <ld2410.h>

10ld2410 radar;

12void setup() {

13 Serial.begin(115200);

14 RADAR_SERIAL.begin(256000);

15 radar.begin(RADAR_SERIAL);

16}

18void loop() {

19 radar.read();

20 if (radar.isConnected()) {

21 if (radar.presenceDetected()) {

22 Serial.print("Presence detected, distance: ");

23 Serial.print(radar.movingTargetDistance() > 0 ? radar.movingTargetDistance() : radar.stationaryTargetDistance());

24 Serial.println(" cm");

25 } else {

26 Serial.println("No presence");

27 }

28 }

29}

📄 File: ld2410c_24ghz_human_presence_radar_sensor_-_arduino_mega.inoArduino Mega

741 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=19, TX=18 on Arduino Mega (module TX -> board RX). This also has a simple OUT pin for basic presence if you don't need the full UART protocol/library.

6#define RADAR_SERIAL Serial1

8#include <ld2410.h>

9ld2410 radar;

11void setup() {

12 Serial.begin(115200);

13 RADAR_SERIAL.begin(256000);

14 radar.begin(RADAR_SERIAL);

15}

17void loop() {

18 radar.read();

19 if (radar.isConnected()) {

20 if (radar.presenceDetected()) {

21 Serial.print("Presence detected, distance: ");

22 Serial.print(radar.movingTargetDistance() > 0 ? radar.movingTargetDistance() : radar.stationaryTargetDistance());

23 Serial.println(" cm");

24 } else {

25 Serial.println("No presence");

26 }

27 }

28}

📄 File: ld2410c_24ghz_human_presence_radar_sensor_-_esp32.inoESP32

734 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=16, TX=17 on ESP32 (module TX -> board RX). This also has a simple OUT pin for basic presence if you don't need the full UART protocol/library.

6#define RADAR_SERIAL Serial1

8#include <ld2410.h>

9ld2410 radar;

11void setup() {

12 Serial.begin(115200);

13 RADAR_SERIAL.begin(256000);

14 radar.begin(RADAR_SERIAL);

15}

17void loop() {

18 radar.read();

19 if (radar.isConnected()) {

20 if (radar.presenceDetected()) {

21 Serial.print("Presence detected, distance: ");

22 Serial.print(radar.movingTargetDistance() > 0 ? radar.movingTargetDistance() : radar.stationaryTargetDistance());

23 Serial.println(" cm");

24 } else {

25 Serial.println("No presence");

26 }

27 }

28}

📄 File: ld2410c_24ghz_human_presence_radar_sensor_-_esp8266.inoESP8266

772 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=D7, TX=D8 on ESP8266 (module TX -> board RX). This also has a simple OUT pin for basic presence if you don't need the full UART protocol/library.

6#include <SoftwareSerial.h>

7SoftwareSerial RADAR_SERIAL(D7, D8);

9#include <ld2410.h>

10ld2410 radar;

12void setup() {

13 Serial.begin(115200);

14 RADAR_SERIAL.begin(256000);

15 radar.begin(RADAR_SERIAL);

16}

18void loop() {

19 radar.read();

20 if (radar.isConnected()) {

21 if (radar.presenceDetected()) {

22 Serial.print("Presence detected, distance: ");

23 Serial.print(radar.movingTargetDistance() > 0 ? radar.movingTargetDistance() : radar.stationaryTargetDistance());

24 Serial.println(" cm");

25 } else {

26 Serial.println("No presence");

27 }

28 }

29}

📄 File: ld2410c_24ghz_human_presence_radar_sensor_-_stm32.inoSTM32

737 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=PA10, TX=PA9 on STM32 (module TX -> board RX). This also has a simple OUT pin for basic presence if you don't need the full UART protocol/library.

6#define RADAR_SERIAL Serial1

8#include <ld2410.h>

9ld2410 radar;

11void setup() {

12 Serial.begin(115200);

13 RADAR_SERIAL.begin(256000);

14 radar.begin(RADAR_SERIAL);

15}

17void loop() {

18 radar.read();

19 if (radar.isConnected()) {

20 if (radar.presenceDetected()) {

21 Serial.print("Presence detected, distance: ");

22 Serial.print(radar.movingTargetDistance() > 0 ? radar.movingTargetDistance() : radar.stationaryTargetDistance());

23 Serial.println(" cm");

24 } else {

25 Serial.println("No presence");

26 }

27 }

28}

📄 File: ld2410c_24ghz_human_presence_radar_sensor_-_raspberry_pi_pico.inoRaspberry Pi Pico

744 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// RX=1, TX=0 on Raspberry Pi Pico (module TX -> board RX). This also has a simple OUT pin for basic presence if you don't need the full UART protocol/library.

6#define RADAR_SERIAL Serial1

8#include <ld2410.h>

9ld2410 radar;

11void setup() {

12 Serial.begin(115200);

13 RADAR_SERIAL.begin(256000);

14 radar.begin(RADAR_SERIAL);

15}

17void loop() {

18 radar.read();

19 if (radar.isConnected()) {

20 if (radar.presenceDetected()) {

21 Serial.print("Presence detected, distance: ");

22 Serial.print(radar.movingTargetDistance() > 0 ? radar.movingTargetDistance() : radar.stationaryTargetDistance());

23 Serial.println(" cm");

24 } else {

25 Serial.println("No presence");

26 }

27 }

28}

Project Notes:

UART mmWave presence/distance radar. Also has a simple OUT pin for basic presence-only use without the full protocol.

Required Libraries:

ld2410 (ncmreynolds)GitHub

Specification

WeightWeight	6 g
Dimensions	3,5 × 3 × 0,4 cm
Product Name	LD2410C 24GHz Human Presence Radar Sensor
Sensing Technology	24GHz Microwave Radar
Detection Type	Human Presence & Motion
Operating Frequency	24 GHz
Operating Voltage	5V
Output Interface	UART
Detection Range	Up to 6 m
Presence Detection	Static & Moving Targets
Detection Angle	Wide Coverage
Response Time	Real-Time
Power Consumption	Low Power
Application	Smart Home, Occupancy Detection, Lighting Control, Security Systems

Customer Reviews

220,00 EGP