HLK-LD2410B Human Presence Detection Radar Module

The HLK-LD2410B radar module is a human presence detection module with 24 GHz sensitivity developed by Hi-Link Electronics. Its working principle is to use continuous waves modulated with FMCW frequency to identify human targets in the set space. Along with radar signal processing and accurate human body measurement algorithms, this module detects human presence with high sensitivity and can identify the human body in moving and stationary states, as well as auxiliary information such as target distance can be calculated.

The farthest detection distance can reach 6 meters and the distance resolution is 0.75 meters. It can easily configure the range of detection distance, detection sensitivity at different distances and unmanned delay time, etc.

The inductive distance detection radar sensor module with human presence 24 GHz supports GPIO and UART ports as well as Bluetooth performance sensor module.

It has good environmental compatibility and the sensor performance is not affected by the surrounding environment such as temperature, brightness, humidity and light fluctuations.

Note: Bluetooth compatible function is on by default and can be turned off with serial protocol. If the compatible bluetooth is off and you can't use the serial port, you can continuously turn off the power within 2-3 seconds and then turn on the power more than 5 times to turn on the compatible bluetooth again. If compatible bluetooth is off and serial port can't be used, turn off and on more than 5 times within 2-3 seconds, then compatible bluetooth can be turned on again.

RX, receive serial

TX, serial transmission

OUT, high level sense output

GND, power ground

VCC, power supply input (5V)

Protection of life safety

Smart home appliances

Smart security

Light control

Industrial equipment

Output: switching converter

Measuring range: 0.75-6 meters

Output voltage: 3.3 volts

Detection angle: ± 60 degrees

Operating frequency band: 24 GHz to 24.25 GHz

Modulation method: FMCW

Interface: one GPIO, IO-level 3.3V, one UART

Power supply: 5 V DC, power supply capacity > 200 mA

Average working current: ~ 79 milliamps

Bandwidth: 250 MHz ISM (according to FCC and CE spectrum regulations)

Ambient temperature: -40 ~ +85 degrees Celsius