The HLK-LD6002C is a compact 60GHz millimeter-wave radar sensor module based on FMCW modulation, designed for detecting human presence and fall events in real-time. By integrating mmWave signal processing algorithms, this module provides accurate detection and alerts for single-person indoor environments, making it ideal for elderly care, home security, and smart building scenarios. Key Features FMCW 60GHz radar (58–62GHz) for high precision sensing Fall detection accuracy: 90% (typical) Detection range: ≤2 meters (recommended mounting height: 2.2–3.0m) Detection angle: ±60° horizontal / ±60° vertical Maximum detectable target: 1 person Low power: 3.3V typical, >1A current Compact size: 23 × 25 × 9 mm Supports UART ASCII output for easy MCU integration Operating temperature: -20°C to +85°C Applications Elderly care monitoring (bedroom, bathroom, toilet) Home security intrusion/fall detection Smart home automation systems Hospital and assisted living environments Contactless human presence detection in public or private spaces Technical Specifications Parameter Value Model HLK-LD6002C Radar Type FMCW millimeter wave Frequency Range 60GHz (58–62GHz) Transmit Power 12dBm Antenna Gain 4dBi Fall Detection Range ≤2 meters Fall Detection Accuracy 90% (typical) Voltage Supply 3.3V (typical), >1A Interface UART0, ASCII format Dimensions 23 × 25 × 9 mm Weight 2g Operating Temp -20°C ~ +85°C Material Polymeric composite Output Type Digital signal sensor Pin Pitch 2.0mm, 8-pin connector Pin Definitions Pin Name Function 1 3V3 Power input 3.3V 2 GND Ground 3 P19 GPIO19 (Boot) 4 TX2 GPIO20 5 AIO1 Analog input 6 SCL0 GPIO07 7 TX0 Serial port TX 8 RX0 Serial port RX Mounting & Operation Notes Recommended ceiling mount: 2.2–3.0 meters height, effective radius ≤2m Suitable for single-person, small-area indoor fall detection Power input must be 3.3V with current ≥1A, ripple < 50mV Default baud rate: 115200bps Ensure stable DCDC power source > 2MHz switching frequency if using converters Not suitable for outdoor or multi-person scenes without algorithm adaptation Package Includes 1 × HLK-LD6002C 60GHz Radar Module
