HB100 Microwave Motion Sensor Module

HB100 Microwave Motion Sensor Module is a high-sensitivity X-Band Doppler transceiver designed for non-contact movement detection in various automated systems. This module utilizes a microwave frequency of 10.525 GHz to detect moving objects by measuring the frequency shift in the reflected signal. Furthermore, unlike traditional PIR sensors that rely on heat signatures, the HB100 can penetrate thin walls, glass, and plastic enclosures to monitor activity from a concealed position. Consequently, this technology provides superior performance in harsh environments where temperature fluctuations or dust might trigger false alarms in optical sensors. Therefore, you can integrate this module into security systems, automatic doors, and industrial automation projects to achieve reliable and discreet motion sensing.

Key Features:

• X-Band Doppler Technology: Operates at 10.525 GHz, providing high accuracy and a broad detection range compared to ultrasonic or infrared alternatives.
• Non-Contact Detection: Detects motion through non-metallic materials, allowing for hidden installation and protection against vandalism.
• Low Power Consumption: Supports pulsed operation modes to minimize current draw, making it suitable for battery-powered or energy-efficient devices.
• Environmental Resilience: Maintains consistent performance regardless of ambient temperature, humidity, or airflow variations.
• Compact Form Factor: Features a flat, lightweight PCB design that easily fits into small sensor housings or light fixtures.

Technical Specifications:

• Operating Frequency: 10.525 GHz (±3 MHz)
• Operating Voltage: 5 V_DC (±0.25 V)
• Current Consumption: 30 mA typical (40 mA maximum)
• Output Power (EIRP): 12 dBm to 15 dBm
• Detection Distance: ≈ 20 meters (Depending on amplification and target size)
• Beam Pattern: 36° (Vertical) and 72° (Horizontal)
• Second Harmonic Emission: < −10 dBm

Mechanical Specifications:

• Antenna Type: Integrated Microstrip Patch Antenna
• Housing Compatibility: Designed for mounting behind plastic or ceramic radomes.
• Vibration Resistance: Robust solid-state construction with no moving parts.
• Lead Material: Gold-plated or tinned pads for reliable soldering.

Dimensions:

• Length: ≈ 37 mm
• Width: ≈ 45 mm
• Height: ≈ 8 mm
• Weight: ≈ 8 g

Pinout and Wiring:

• VCC: Connect to a stable +5 V_DC power source.
• GND: Connect to the common ground of your circuit.
• IF (Intermediate Frequency): Provides the raw Doppler shift signal. However, this output is very low (microvolts) and requires an external operational amplifier (Op-Amp) circuit before a microcontroller can read it.
• Wiring Note: Keep power supply leads short and use decoupling capacitors to minimize noise interference on the sensitive IF output.

Datasheet Reference:

• Download HB100 Microwave Motion Sensor Datasheet

Commonly Used in:

• Security Alarms: Serving as the primary motion detector for indoor and outdoor perimeter protection.
• Intelligent Lighting: Controlling street lights or hallway illumination based on pedestrian or vehicle presence.
• Automatic Door Openers: Triggering door mechanisms in commercial buildings and shopping malls.

Applications:

• Speed Measurement: Estimating the velocity of moving objects using the Doppler shift principle.
• Occupancy Sensing: Managing HVAC systems in smart buildings to save energy when rooms are empty.
• Industrial Safety: Detecting human presence near hazardous machinery to prevent accidents.

Equivalent Models:

• RCWL-0516: A lower-cost, smaller microwave sensor module, although it provides less range and a binary output instead of raw IF.
• GH100: A functionally identical 10 GHz microwave sensor often used as a direct alternative in similar footprints.
• CDM324: A 24 GHz microwave sensor that offers a more compact size and higher frequency resolution for precision tasks.

Package Includes:

• 1 x HB100 Microwave Motion Sensor Module (10.525GHz)