The Hi-Link LD2451 is a high-sensitivity 24 GHz FMCW (Frequency-Modulated Continuous Wave) radar module designed for mobile vehicle sensing applications. It can detect and track vehicles at distances of up to 100 meters, providing real-time measurements of distance, angle, and speed. Optimized for outdoor use, the LD2451 features a detection angle of ±20°, making it suitable for traffic monitoring, vehicle counting, and motion detection systems.
Features / Specs
- Manufacturer: Hi-Link
- Model: LD2451
- Radar Chip:: SKYRELAY RC2412
- Frequency Band: 24 – 24.25GHz (Complies with FCC and CE Certification Standards)
- Sweep Bandwidth: 200MHz (Complies with FCC and CE Certification Standards)
- Modulation: FMCW (Frequency Modulated Continuous Wave)
- Sensing Distance: Up to 100 Meters
- Sensing Angle: ± 20°
- Target Application: Outdoor Vehicle Target Detection
- Detection Speed Range: 0 ~ 120km/h
- Operating Voltage Range: 5VDC (> 300mA)
- Output and Logic Level Voltage: 3.3VDC
- Operating Current (Average): ~107mA
- Operating Temperature Range: ~(-40°C to +85°C)
- Communication Protocol: UART (Default Baud Rate = 115200 / 1 Stop bit / No Parity bit)
- Header Pin Pitch: 2.54mm
- Dimensions: ~(70mm x 35mm)
Pin Description
- VIN-> Supply Voltage (5VDC)
- GND-> Ground
- OT1-> GPIO1 – Indicator Pin (See datasheet for details)
- TX-> UART TX Pin
- RX-> UART RX Pin
- OT2-> GPIO2