Published February 11, 2021 © GPL3+

Arduino Based Fire alarm using dot matrix display

In this article we interface Flame Sensor with Arduino and learn all the steps to build Fire Alarm System by using Arduino, flame sensor and

IntermediateFull instructions provided3 hours461

Arduino Based Fire alarm using dot matrix display

Things used in this project

Hardware components

Arduino UNO

LED Dot Matrix Display, Red

DFRobot Gravity: Analog Flame Sensor For Arduino

Hand tools and fabrication machines

10 Pc. Jumper Wire Kit, 5 cm Long

Breadboard, 170 Pin

Story

Fire Alarm Systems are very common in commercial building and factories, these devices usual contain a cluster of sensors that constantly monitors for any flame, gas or fire in the building and triggers an alarm if it detects any of these. One of the simplest way to detect fire is by using an IR Flame sensor, these sensors have an IR photodiode which is sensitive to IR light. Now, in the event of a fire, the fire will not only produce heat but will also emit IR rays, yes every burning flame will emit some level of IR light, this light is not visible to human eyes but our flame sensor can detect it and alert a microcontroller like Arduino that a fire has been detected.

https://www.dofbot.com/post/arduino-based-fire-alarm-using-dot-matrix-display

Code

Untitled file

#include <LedControl.h>   


const int numDevices = 1;      // number of MAX7219s used in this case 2

const long scrollDelay = 120;   // adjust scrolling speed

unsigned long bufferLong [14] = {0};  

LedControl lc=LedControl(12,11,10,numDevices);//DATA | CLK | CS/LOAD | number of matrices

const unsigned char scrollText[] PROGMEM ={"NO FIRE"};


const int buzzerPin = 8;

const int flamePin = 9;

int Flame = HIGH;



int theHeightTarget[8];

int theHeightCurrent[8];


int fireHeight = 0;

int sparkX = 0;

Credits

Ramesh

15 projects • 19 followers

Arduino Based Fire alarm using dot matrix display

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Schematics