Heat Flame Sensor
Heat Flame Sensor Module
Fire Detection Safety Monitoring Fast Response
The Flame Sensor Module (often called a Heat Flame Sensor) is an electronic sensor designed to detect fire or flame sources by sensing infrared light emitted by flames. It is commonly used in fire detection systems, safety alarms, robotics, and industrial monitoring applications.
Flames emit strong infrared radiation in the 7601100 nm wavelength range, which the sensor detects to identify the presence of fire.
Infographic Overview
Basic Specifications
Feature | Details |
Operating Voltage | 3.3V 5V |
Detection Wavelength | 760 1100 nm |
Detection Distance | |
Detection Angle | ~60 |
Output Type | Analog (A0) & Digital (D0) |
Main Components
Component | Description |
Flame Detection Sensor | Detects infrared radiation from flames |
Comparator IC (LM393) | Converts analog signal to digital output |
Sensitivity Potentiometer | Adjusts detection sensitivity |
Indicator LEDs | Shows power and detection status |
Output Pins | Connect to microcontroller |
Pin Configuration
Pin | Function | |
VCC | Power supply (3.3V 5V) | Analog output (flame intensity) |
D0 | Digital output (fire detection signal) |
>A0
Working Principle
The sensor detects infrared radiation emitted by flames.
Step-by-Step Operation
1 Fire or flame emits infrared radiation.2 The flame sensor detects the IR light.3 The signal is converted into an electrical voltage.4 The module processes the signal using the LM393 comparator.5 If the signal exceeds the threshold, the digital output becomes HIGH or LOW (depending on module configuration).
Sensor Module Layout
Flame Sensor Module IR Flame Detector VCC GND A0 D0
Common Applications
Fire alarm systems Industrial fire monitoring Fire-fighting robots Home safety systems Early fire detection devices
Compatible Microcontrollers
The flame sensor works easily with:
Arduino Uno
ESP32
Arduino Nano
Raspberry Pi
Advantages
Fast flame detection response Adjustable sensitivity Both analog and digital outputs Easy integration with microcontrollers Low power consumption
Limitations
May detect other strong infrared sources Limited detection range Performance affected by sunlight or bright light
Example Project Idea
Fire Detection Alarm System
Components
Flame sensor module
Arduino Uno
Buzzer
LED indicator
Working
Sensor detects flame Microcontroller receives signal Buzzer ala