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IR21GM Product Overview
Introduction
The IR21GM is a versatile electronic component that belongs to the category of infrared sensors. This entry provides a comprehensive overview of the IR21GM, including its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.
Basic Information Overview
- Category: Infrared Sensor
- Use: Detection of infrared radiation
- Characteristics: High sensitivity, low power consumption
- Package: Small form factor
- Essence: Detecting presence or absence of infrared radiation
- Packaging/Quantity: Typically available in reels of 1000 units
Specifications
- Operating Voltage: 3.3V - 5V
- Detection Range: 0.2m - 1.5m
- Output Type: Digital (TTL compatible)
- Response Time: <10ms
- Operating Temperature: -20°C to 70°C
- Dimensions: 5mm x 5mm x 2mm
Detailed Pin Configuration
- Pin 1 (VCC): Power supply input
- Pin 2 (GND): Ground connection
- Pin 3 (OUT): Digital output signal
Functional Features
- High Sensitivity: Capable of detecting even small changes in infrared radiation.
- Low Power Consumption: Ideal for battery-powered applications.
- Digital Output: Provides easy interfacing with microcontrollers and other digital circuits.
Advantages and Disadvantages
Advantages
- Reliable detection of infrared radiation
- Low power consumption
- Compact form factor
Disadvantages
- Limited detection range
- Susceptible to ambient infrared interference
Working Principles
The IR21GM operates based on the principle of detecting infrared radiation emitted by objects within its detection range. When an object is detected, the sensor outputs a digital signal indicating the presence of infrared radiation.
Detailed Application Field Plans
The IR21GM finds applications in various fields, including: 1. Proximity sensing in robotics and automation 2. Object detection in security systems 3. Presence detection in smart home devices 4. Hand gesture recognition in consumer electronics
Detailed and Complete Alternative Models
- IR25GM: Extended detection range variant
- IR18GM: Lower power consumption variant
- IR30GM: Higher precision variant
In conclusion, the IR21GM infrared sensor offers reliable detection of infrared radiation with low power consumption and a compact form factor. Its applications span across diverse fields, making it a valuable component in modern electronic systems.
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What is IR21GM?
- IR21GM is a type of infrared sensor module commonly used in technical solutions for detecting motion and proximity.
How does IR21GM work?
- The IR21GM emits infrared radiation and detects the reflection of this radiation off nearby objects, allowing it to sense motion and proximity.
What are the typical applications of IR21GM?
- IR21GM is often used in security systems, automatic lighting controls, robotics, and smart appliances for motion detection and object avoidance.
What is the operating voltage range of IR21GM?
- The operating voltage range of IR21GM is typically between 3.3V and 5V.
Can IR21GM be used outdoors?
- Yes, IR21GM can be used outdoors, but it may require additional weatherproofing or protection from environmental factors.
What is the detection range of IR21GM?
- The detection range of IR21GM varies depending on the specific model, but it typically ranges from a few centimeters to several meters.
Does IR21GM require any calibration?
- IR21GM modules are usually pre-calibrated and do not require user calibration, making them easy to integrate into technical solutions.
Can IR21GM detect multiple objects simultaneously?
- Yes, IR21GM can detect multiple objects within its detection range, making it suitable for applications requiring multi-object sensing.
What are the output signals of IR21GM?
- IR21GM typically provides digital output signals (such as high/low or on/off) based on the presence or absence of detected motion or proximity.
Are there any limitations to using IR21GM in certain environments?
- IR21GM may have limitations in environments with extreme temperature variations, direct sunlight exposure, or heavy dust or moisture, which could affect its performance.