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A flame sensor is a device designed to detect the presence of flames or fire, making it useful for safety systems and automation applications. Here’s an overview of its features, types, and applications:

Key Features

• Sensitivity: Designed to detect specific wavelengths of light emitted by flames (typically in the infrared or ultraviolet spectrum).
• Output Type: Can provide analog or digital signals; often outputs a high signal when a flame is detected.
• Fast Response Time: Quickly detects flames to trigger alarms or safety mechanisms.

Types of Flame Sensors

1. Infrared (IR) Flame Sensors: Detect infrared radiation emitted by flames. Commonly used in industrial applications.
2. Ultraviolet (UV) Flame Sensors: Detect UV light produced by flames, effective for certain types of fires but can be affected by sunlight.
3. Combination Sensors: Use both IR and UV detection for increased reliability.

Wiring

To connect a flame sensor (such as an IR sensor) to a microcontroller (like an Arduino):

1. Power Connections:

   • VCC: Connect to a power source (usually 5V).
   • GND: Connect to ground.

2. Output:

   • Signal Pin: Connect the output pin to a digital input pin on the microcontroller.