HW-1005 Human Detect Sensor PIR Sensor Module with 5cm Cable

Introduction of PIR Sensor Module

Advanced Features of HW-1005 Infrared Sensor Module

Cutting-Edge Technology:

• The HW-1005 sensor module is built on digital infrared technology, offering advanced features for automatic control products. It boasts high sensitivity, exceptional anti-interference capabilities, and robust stability, making it a reliable choice for a variety of automatic sensor circuit systems.

Versatile Applications:

• This sensor module, known for its PIR sensor, human detector, and human motion sensor functionalities, is widely used in diverse applications. From toys and digital photo frames to security intrusion detection, occupancy sensing, network cameras, private alarms, car burglar alarms, and even TV and refrigerator air conditioning systems, the HW-1005 sensor module proves to be a versatile solution.

Keywords for Product Recognition:

• The HW-1005 sensor module is associated with keywords such as LED switch, home automation, and smart home technology. These keywords highlight the module's capabilities in enhancing automation and control systems for a more intelligent and efficient living environment.

Features of PIR Sensor Module

1. digital signal circuit processing.

2. Two-way differential Very high impedance sensor input.

3. Special built-in infrared sensor second-order Butterworth bandpass filter, shielding other frequency input interference.

4. Power supply rejection ratio is high, anti-radio frequency interference.

5. With sensitivity, timing time, light sensor Schmitt REL output.

6. Low voltage, low power consumption, start working instantly.

7. Automatic induction: people into its sensing range is output high, people leave the sensor range is automatically delayed high, the output low.

8.When the probe receives a pyroelectric infrared signal that exceeds the trigger threshold inside the probe, a count pulse is generated internally. When the probe receives this again

Like the signal, it will be considered to receive a second pulse, once within 4 seconds after receiving two pulses, the probe will produce an alarm signal, while REL pin has a high level trigger. In addition, as long as the received signal amplitude exceeds the trigger threshold of more than 5 times, then only need a pulse can trigger REL output. The following figure shows an example of a trigger logic diagram. For multiple triggers, the hold time of the output REL is timed from the last valid pulse.

Technical Parameters of PIR Sensor Module

Application of detection circuit diagram of PIR Sensor Module

Precautions of PIR Sensor Module

Guidelines for Optimal Usage of HW-1005 Pyroelectric Infrared Sensor Module

Detection Considerations:

• The HW-1005 sensor module is specifically designed to detect infrared variations, primarily from human body heat sources. It is important to note that the sensor may not effectively detect heat sources other than the human body or temperature changes caused by non-human sources.

Challenges and Solutions:

• When using the HW-1005 sensor module, consider the following scenarios:

• Detection of small animals entering the range.

• Exposure to far-infrared sources like the sun, car headlights, or incandescent lamps.

• Drastic temperature changes within the detection range due to external factors such as warm air from cooling devices or water vapor from humidifiers.

• Difficulty in detecting heat sources obstructed by materials like glass or propylene.

• Limited detection capability for stationary or fast-moving heat sources.

Expansion of Detection Area:

• In environments with significant temperature variations (around 20°C or more), the detection area may extend beyond the specified range.

Additional Usage Guidelines:

• To ensure optimal performance and reliability of the HW-1005 sensor module, adhere to the following guidelines:

• Avoid dirt accumulation on the sensor window.

• Handle the lens made of polyethylene with care to prevent deformation or damage.

• Prevent static electricity discharge above ±200V to avoid potential damage.

• Follow proper soldering guidelines to prevent performance degradation.

• Refrain from cleaning the sensor to prevent fluid intrusion and potential performance deterioration.

Commonly used lens selection table: