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

Hi-Link HLK-LD2420 24GHz Radar Sensor Module - Human Static Presence Sensor
New 2-4 Weeks
Hi-Link HLK-LD2420 24GHz Radar Sensor Module - Human Static Presence Sensor
  • Availability: 2-4 Weeks
  • SKU: 005895
€4.00
Ex Tax: €3.31

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sensor status can be read via the "OT2" pin or via the UART interface (OT1 (=TX) and RX, the pinout in the datasheet is outdated).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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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

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