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  4. MH-SR602 Mini PIR Motion Sensor Module – Ultra Compact Passive Infrared Detector
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मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
MH-SR602 Mini PIR Motion Sensor Module – Ultra Compact Passive Infrared Detector

MH-SR602 Mini PIR Motion Sensor Module – Ultra Compact Passive Infrared Detector

ParameterDetailed Specification
ModelMH-SR602
Operating Voltage3.3V to 5V DC
Sensing DistanceUp to 5 Meters (Optimal 0-3.5M)
Output TypeHigh/Low Level Digital Signal (3.3V Logic)
Delay TimeFixed ~2.5 Seconds (Adjustable via SMD resistor)
Sensing Angle< 100 Degrees
Quiescent Current~20µA (Ultra-low power)
Dimensions13.5mm x 10mm (excluding lens)
                                 Price

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₹ 80.51 ₹ 80.51
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बारकोड: 146414561

Product Description

Maximize efficiency in your space-constrained projects with the MH-SR602 Mini Motion Sensor. This is one of the smallest Passive Infrared (PIR) sensors available, designed to detect human or animal movement by sensing changes in infrared radiation. At Robogears, we recommend the MH-SR602 for battery-operated IoT devices due to its incredibly low current draw and compact circular lens. Unlike larger PIR modules, this mini version fits perfectly into sleek 3D-printed enclosures and smart home switches. Whether you are building an automated under-cabinet light or a hidden security trigger at your Pimpri workshop, the MH-SR602 provides reliable "high-sensitivity" detection with a simplified 3-pin interface.

Detailed Key Features

  • Ultra-Miniature Form Factor: Features a tiny hemispherical Fresnel lens, making it nearly invisible when mounted in walls or device panels.

  • Low Power Consumption: With a quiescent current of only 20µA, it is the ideal choice for long-term battery-powered applications.

  • Wide Voltage Range: Operates seamlessly on both 3.3V and 5V power rails, ensuring compatibility with Arduino, ESP8266, and Raspberry Pi.

  • Stable Digital Output: Provides a clean 3.3V High signal upon detection, eliminating the need for complex analog filtering in your code.

  • Automatic Reset: After the delay time expires, the sensor automatically resets to Low, ready to detect the next movement.


All Technical Details

  • Pin Definition:

    • VCC: Positive Power (3.3V - 5V).

    • GND: Negative Power.

    • OUT: Digital Output (3.3V High when motion is detected).

  • High Sensitivity: Capable of detecting minute movements within its 100-degree cone.

  • Durability: Solid-state sensing with no moving parts, ensuring a long operational life in indoor environments.

  • Applications: Smart LED controllers, automatic door openers, intruder alarms, and "human-present" detection for kiosks.

Prototyping & Engineering Tips (Robogears Exclusive)

  • The "Warm-Up" Period: At our Pimpri facility, we’ve observed that the MH-SR602 requires a "settling time" of about 30 to 60 seconds after power-up. During this time, the output might trigger randomly; simply ignore these initial pulses in your code using a delay() or a timer.

  • Delay Adjustment: The default delay is approximately 2.5 seconds. If your project requires a longer hold time, you can replace the on-board SMD resistor (labeled 'R9' on most boards) with a higher value, or handle the delay logic within your microcontroller software.

  • Lens Alignment: PIR sensors are most sensitive to motion across the field of view rather than motion directly toward the sensor. Position the module so that the expected path of movement crosses the sensor's "vision."

  • Interference Shielding: Avoid placing the sensor near heat sources (like radiators or incandescent bulbs) or in direct sunlight, as these can cause false triggers due to rapid IR changes.

Package Includes

  • 1 x MH-SR602 Mini Motion Sensor Detector Module

Image Disclaimer

Product images are shown for illustrative purposes only. The color of the PCB (typically Green or Blue) or the specific marking on the lens may vary between batches, but the MH-SR602 ultra-low power motion detection performance remains as described.

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