LD2451 24GHz Vehicle Detection Radar zur Fahrzeugerfassung und Geschwindigkeitsmessung | Bis 100m Reichweite | FMCW | UART & GPIO | Integriertes Bluetooth-Setup

The LD2451 is a professional 24 GHz FMCW radar module designed for precise vehicle detection at both short and long distances. Using advanced radar signal processing and intelligent algorithms, the sensor reliably detects vehicles and measures speed, angle, direction, and distance. Detection results are output via UART or GPIO, making integration into various systems simple and flexible.

With a long detection range of up to 100 m, adjustable detection parameters, and built-in Bluetooth for configuration, the LD2451 is ideal for a wide range of outdoor and smart-traffic applications. The free HLKRadarTool app (iOS/Android) allows you to configure all parameters wirelessly and view live radar data in real time.

Highlights

• 24 GHz FMCW Radar: Highly reliable vehicle detection, unaffected by lighting or weather conditions.
• Long Detection Range: Up to 100 m, perfect for traffic systems, gates, parking automation, and outdoor monitoring.
• Flexible Configuration: Adjust detection distance, speed threshold, detection direction, alarm delay, and sensitivity to fit your application.
• Easy Integration: 5 V power supply, UART interface (default 115200 baud), and 3.3 V GPIO outputs.
• Bluetooth App Support: Configure parameters and monitor live target data directly from your smartphone.
• Outdoor-Ready: Wide operating temperature range and robust performance for industrial environments.

Typical Applications

• Smart traffic monitoring and vehicle detection
• Gate control and access automation
• Parking and garage automation systems
• Blind-spot detection and vehicle assistance systems
• Outdoor IoT and smart city projects

Technical Specifications

• Operating frequency: 24.00–24.25 GHz (ISM band)
• Modulation method: FMCW
• Detection distance: Up to 100 m (adjustable)
• Supply voltage: 5 V DC (>300 mA)
• Average operating current: approx. 107 mA
• Interfaces: UART + 2× GPIO (3.3 V level)
• Operating temperature: −40 °C to +85 °C
• Module dimensions: 70 mm × 35 mm