Flame sensor is connected to digital pin 4 of Arduino.
#Flame sensor proteus library code
In this part of the code we are going to define pins for Flame sensor, LED and buzzer which are connected to Arduino. The code is split into small meaningful chunks and explained below. The complete Arduino code for this project is given at the end of this article. Fire Alarm System using AVR Microcontroller.Arduino Uno checks the logic level on the output pin of the sensor and performs further tasks such as activating the buzzer and LED, sending an alert message.Īlso, check our other fire alarm projects: It gives logic 1 as output if flame is detected, otherwise it gives logic 0 as output. The flame sensor detects the presence of fire or flame based on the Infrared (IR) wavelength emitted by the flame. The table below shows the technical specification of Arduino Uno. Arduino Uno supports Serial, I2C, SPI communication for communicating with other devices. It operates at the clock frequency of 16MHz. Arduino Uno has 32KB of flash memory, 2KB of SRAM and 1KB of EEPROM. It has 14 digital pins (out of which 6 pins can be used as PWM outputs), 6 analog inputs, on board voltage regulators etc. Arduino Uno (any Arduino board can be used)Īrduino Uno is a open source microcontroller board based on ATmega328p microcontroller.Logic low on output indicates absence of flame or fire.īelow is the Pin Description of Flame sensor Module: Logic high on the output indicates presence of flame or fire. Working voltage is between 3.3v and 5v DC, with a digital output. The sensitivity can be adjusted by varying the on board potentiometer. Flame sensor module consists of a photodiode (IR receiver), resistor, capacitor, potentiometer, and LM393 comparator in an integrated circuit. It can detect infrared light with a wavelength ranging from 700nm to 1000nm and its detection angle is about 60°. It is based on the YG1006 sensor which is a high speed and high sensitive NPN silicon phototransistor. In this project we are using an IR based flame sensor.
Then we use an Op-Amp to check for change in voltage across the IR Receiver, so that if a fire is detected the output pin (DO) will give 0V(LOW) and if the is no fire the output pin will be 5V(HIGH).
When fire burns it emits a small amount of Infra-red light, this light will be received by the Photodiode (IR receiver) on the sensor module. Some of them are: Ultraviolet detector, near IR array detector, infrared (IR) detector, Infrared thermal cameras, UV/IR detector etc. There are different types of flame detection methods.
Responses to a detected flame depend on the installation, but can include sounding an alarm, deactivating a fuel line (such as a propane or a natural gas line), and activating a fire suppression system. Flame sensor used here is an IR based flame sensor.Ī flame detector is a sensor designed to detect and respond to the presence of a flame or fire.
Arduino reads the signal and provides alert by turning on buzzer and LED. It is used to detect fire and provide HIGH signal upon the detection. Flame sensor module has photodiode to detect the light and op-amp to control the sensitivity. In this article we interface Flame Sensor with Arduino and learn all the steps to build Fire Alarm System by using Arduino and flame sensor.
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