Generic HFS-DC06 5.8GHz Microwave Motion Sensor Module - 5V DC, High-Level Output

The module requires a strictly stable and regulated 5V DC power supply. While the minimum quiescent current is 22.4mA, a supply capable of delivering more than 30mA is recommended to ensure reliable operation and prevent erratic triggering. Voltage fluctuations or insufficient current can cause continuous false triggers.

The module includes onboard potentiometers for adjustment. Turning the sensitivity preset clockwise increases the detection range and sensitivity, while turning it counterclockwise decreases them. A separate timing potentiometer controls the duration the output signal remains high after motion is detected. Fine-tune these for your specific installation environment.

Yes, mounting is critical for performance. Avoid installing the module directly adjacent to large metal surfaces or inside a fully enclosed metal enclosure, as this will reflect and attenuate the 5.8GHz signal, severely degrading or completely disabling detection capability. For best results, mount it facing the detection area with a clear, non-metallic field of view.

The module provides a high-level digital output signal (typically 3.3V or 5V, matching the supply). This TTL-compatible signal can be connected directly to a digital input pin on microcontrollers like Arduino, ESP32, or Raspberry Pi. The pin goes high when motion is detected and returns low after the adjustable delay period.

The 5.8GHz RF signal can penetrate non-metallic, non-conductive materials like drywall, plastic, or glass to a limited degree, allowing for concealed installation in some scenarios. However, the sensing range and reliability will be reduced. It cannot penetrate metal or conductive materials. Always test in the final intended location and adjust sensitivity accordingly.