1. Product introduction
HLK-LD2420 is a high-performance 24 GHz radar module with a send-and-receive antenna. Its human body sensing algorithm adopts millimeter-wave radar distance measurement technology and advanced proprietary signal processing technology of S3 series chips to achieve precise perception of movement, micro-movement and standing human body.
HLK-LD2420 is mainly used to detect whether there is movement or slight movement of the human body in the indoor scene perception area, and refresh the detection results in real time. It has a maximum sensing distance of 8 m for a moving human body. It can easily configure the sensing distance range, sensing sensitivity in different intervals and refresh time. It supports GPIO and UART interfaces, plug and play, and can be flexibly applied to different smart scenarios and terminal products. .
2. Product features and benefits
2.1 Features
l Equipped with single-chip intelligent millimeter wave sensor SoC and intelligent algorithm firmware
l Ultra-small module size: 20 mm × 20 mm
l Load the default human sensor configuration, plug and play
l 24 GHz ISM frequency band, certified by FCC, CE, and non-committee spectrum regulations
l 3.3 V power supply, support 3.0 V ~ 3.6 V wide voltage range
l Average operating current 50 mA
l The detection target is moving and micro-moving human body
l Real-time reporting of detection results
l Provide visualization tools to support the configuration of detection distance intervals, setting sensitivity and result reporting time between partitions
l Supports the division of sensing range, completely shielding any interference outside the range
l Short-range 0.2 m induction, no detection blind zone
l The longest distance of human motion sensing is 8 m
l Large detection angle, coverage reaches ±60°
l Support various installation methods such as ceiling hanging and wall hanging
Independent configuration of trigger and hold state, strong anti-interference ability
3. Application scenarios
4. Hardware Description
The picture below shows the front and back of the module. The module is equipped with 5 pin holes (factory does not come with pins) called J2 for power supply and communication; J1 is the SWD J1 is the SWD interface, which is used for MCU program burning and debugging.
|
J#PIN# |
Name |
Function |
Description |
|
J1Pin1 |
GND |
Grounding |
|
|
J1Pin2 |
DIO |
SWDInterface Data Cable |
0 ~ 3.3V |
|
J1Pin3 |
CLK |
SWDInterface clock line |
0 ~ 3.3V |
|
J1Pin4 |
3V3 |
Power input |
3.0 V ~ 3.6V，Typ.3.3V |
4.1 Dimension
All units are mm. The plate thickness of the module is 1.2 mm with a tolerance of ±10%.
Recensioni
Ancora non ci sono recensioni.