Hi-Link HLK-LD016 5.8GHz Motion Detection Radar Sensor Module

The module typically operates at a common logic voltage of 3.3V or 5V (specifics should be confirmed from the official datasheet). Its key feature is ultra-low power consumption, drawing approximately 20mA during operation, making it suitable for battery-powered applications.

The HLK-LD016 features user-configurable parameters. Sensing distance, trigger delay time (hold-on duration after detection), and ambient light sensitivity are typically adjusted via external resistor configurations or through dedicated configuration pins. Refer to the manufacturer's application notes for the specific adjustment method.

As a basic Doppler radar sensor, the HLK-LD016 detects motion based on movement and reflectivity. It is not inherently capable of sophisticated target classification (like human vs. pet). Its sensitivity and detection zone can be tuned, but it will generally trigger for any moving object within its adjusted range that meets the signal threshold.

The module typically provides a simple digital output signal (high/low) that toggles upon motion detection. This output can be directly connected to a digital input pin on microcontrollers like Arduino, ESP32, or Raspberry Pi GPIO for easy integration into automated control logic and IoT projects.