Name: Hi-Link HLK-LD2420 24GHz Radar Sensor Module - Human Static Presence Sensor - HLK-LD2420
SKU: 005895
Price: 4 EUR
Availability: InStock

Hi-Link HLK-LD2420 24GHz Radar Sensor Module - Human Static Presence Sensor

Availability: Directly available from warehouse in Eindhoven
SKU: 005895

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€4.00

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LD2420 is a highly sensitive radar module for human presence and motion. In addition, this sensor can also measure the distance to the motion. The sensor status can be read via the "OT2" pin or via the UART interface (OT1 (=TX) and RX, the pinout in the datasheet is outdated).

See the following page for an example with Home Assistant: ESPHome

Check the tab "Downloads" for more information and/or downloads.

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Datasheet: 005895_LD2420-Datasheet.pdf

Arduino IDE example: 005895_HLK-LD2420_ESP32_test.ino

Tags: Hi-Link HLK-LD2420 24GHz Radar Sensor Module - Human Static Presence Sensor , HLK-LD2420 , Motion

Specifications

General
Brand	Hi-Link
Manufacturer model/SKU	HLK-LD2420
Minimum operating temperature [°C]	-40
Maximum operating temperature [°C]	85
Features	Object detection sensor
General physical appearance
Main color	Blue
Weight [g]	2
Dimension X [mm]	20
Dimension Y [mm]	20
Mounting options	Pin headers
Form factor	Module (general)
General electrical properties
Minimum supply voltage [V DC]	3
Maximum supply voltage [V DC]	3.6
Minimum IO-pin input voltage [V]	3
Maximum IO-pin input voltage [V]	3.6
IO-pin output voltage [V]	Equal to supply voltage
Communication
Hardware interface(s)	UART Digital
Default baudrate	115200
Object detection sensor
Sensor (chip)	S3KM1110
Type	Radar
Detection type	Motion Distance Presence
Adjustable detection distance	Yes
Adjustable sensitivity	Yes
Minimum measuring range [cm]	0.2
Maximum measuring range [cm]	800 (beweging) 400 (aanwezigheid)
Smallest resolution [mm]	10
Accuracy [±mm]	350
Maximum detection angle [°]	120
Operating frequency [GHz]	24
Connectors
Power supply connector(s)	Pin header male (2.54mm)
IO-connector(s)	Pin header male (2.54mm)
Package contents
Package contents	1x Radar sensor