The Hi-Link LD2410S is a compact, low-power radar module designed for reliable, always-on human presence detection. Unlike traditional PIR sensors, it can detect both moving and stationary people, making it ideal for applications where accurate occupancy detection is critical. With very low current consumption, the LD2410S is well suited to energy-efficient smart lighting, security systems, and automation projects that require continuous monitoring without excessive power draw. It can detect presence through non-metallic materials such as plastic or glass, allowing discreet integration into enclosures and finished products.
Features / Specs
- Manufacturer: Hi-Link
- Model: LD2410S
- mmWave Sensor Chip: Iclegend ICL1112
- Frequency Band: 24 – 24.25GHz (Complies with FCC and CE Certification Standards)
- Modulation: FMCW (Frequency Modulated Continuous Wave)
- Max Sensing Distance (Wall Mounted 1.5m High): Moving Target Detection = 10 Meters / Stationary Target Detection = 4 Meters
- Min Sensing Distance: 0.2 Meters
- Sensing Angle: ± 60°
- Operating Voltage Range: 3.0 – 3.6VDC
- Output and Logic Level Voltage: 3.3VDC
- Operating Current (Typical): 120μA
- Data Refresh Rate: 1 – 60 seconds (Configurable)
- Interfaces: UART (Default Baud Rate = 115200) / GPIO
- Operating Temperature Range: ~(-40°C to +85°C)
- Header Pin Pitch: 2.54mm
- Dimensions: ~(20mm x 20mm)
Pin Description
- 3V3-> Supply Voltage (3.0 – 3.6VDC)
- GND-> Ground
- OT1-> UART TX Pin
- RX-> UART RX Pin
- OT2-> IO Pin (Used to report detection status – see datasheet)