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HI-LINK

Hi-Link LD1125H 24GHz Breathing Detection Radar Sensor

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AI Summary
RADAR Sensors for everyday users

The Hi-Link LD1125H 24GHz Breathing Detection Radar Sensor by HI-LINK is a mid-range radar sensors designed for everyday users. It features Item Type: Sensor Module and Model No. / Name: HLK LD112SH.

₹1,879
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Total: ₹1,879
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 16 Aug30 Aug
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Quick Specs

Item Type: Sensor Module
Model No. / Name: HLK LD112SH
Frequency: 23.5G-24.5GHz
Modulation Method: FMCW
Detection Distance (mm): > 4m static detection, > 8m moving detection
Power Supply Voltage (V): 3.3-5V

Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: robu-1802852Category: RADAR Sensors

About This Product

The Hi-Link LD1125H 24GHz Breathing Detection Radar Sensor by HI-LINK is a mid-range radar sensors designed for everyday users. It delivers reliable performance at an accessible price.

Key Specifications

  • Item Type: Sensor Module
  • Model No. / Name: HLK LD112SH
  • Frequency: 23.5G-24.5GHz — smooth, flicker-free operation
  • Modulation Method: FMCW
  • Detection Distance (mm): > 4m static detection, > 8m moving detection
  • Power Supply Voltage (V): 3.3-5V — works with standard household power
  • AC Current(A): 80mA
  • Shipping Weight: 0.03 kg

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Hi-Link 24G millimeter Wave Human Presence Detection Radar sensor module LD1125H breathing induction ranging detector is a high-sensitivity 24GHz millimeter-wave human presence detection radar module. The main feature of this module is to judge the existence of the human body by detecting and accumulating tiny movements such as human respiration. Therefore, the detection of human presence is more accurate than traditional mobile detection radars. Not easy to miss. 24G millimeter-wave human presence detection radar sensor module LD1125H breathing induction ranging detector

Applications:

  1. In security devices
  2. In-home automation
  3. In Industrial devices

Features:

  1. Frequency is 24GHz millimeter-wave.
  2. Application Human presence detection.
  3. Technology Radar sensing.
  4. Mode Breathing induction ranging.
  5. Range: Defined detection range.
  6. Precision: Accurate ranging.
  7. Compact Design: The module is compact.
  8. Radar Sensitivity: High sensitivity.
  9. Power Consumption: Low power usage.
  10. Output serial level: 3.3V
  11. Detection cycle: adaptive
  12. Antenna half power angle: horizontal ±22°, vertical ±24°
  13. Data format: Serial port ASCII output

Applications:

  1. In security devices
  2. In-home automation
  3. In Industrial devices

Package Includes:

Hi-Link 24G millimeter Wave Human Presence Detection Radar sensor module LD1125H breathing induction ranging detector

Setup Guide

1
Identify the pins
Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.
2
Wire to your microcontroller
Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
Calibrate if needed
Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.