Flame Sensor Module 4 Pin

The Flame Sensor Module for Arduino (4-Pin) is a compact and reliable sensor designed to detect the presence of fire or flame using infrared light detection. It is sensitive to flame wavelengths in the 760–1100 nm range, making it suitable for detecting open flames such as candles, lighters, or small fires. The module provides both digital and analog outputs, allowing flexible integration with Arduino, ESP32, Raspberry Pi (via ADC), and other microcontroller platforms. An onboard comparator with adjustable sensitivity enables precise threshold tuning for different environments. This module is widely used in fire alarm systems, safety projects, robotics, and smart home applications. Easy to wire and operate, it is ideal for beginners, students, and professionals working on flame detection or fire monitoring projects.

Specifications :

• Sensor Type: Infrared Flame Sensor
• Detection Wavelength: 760–1100 nm
• Operating Voltage: 3.3V – 5V DC
• Interface: Analog Output (AO), Digital Output (DO)
• Pins: VCC, GND, AO, DO (4-Pin)
• Sensitivity Adjustment: Onboard Potentiometer
• Detection Distance: Up to ~80 cm (depends on flame size)
• Compatibility: Arduino, ESP32, microcontrollers