Overview
Things
Story

About
Pinout
Syntax

Published April 19, 2022 © GPL3+

KY-026 Flame sensor tutorial

A tutorial for the KY-026 Flame sensor model

IntermediateProtip1,082

Things used in this project

Hardware components

Arduino UNO

wire

Breadboard (generic)

KY-026 Flame sensor

LED (generic)

Software apps and online services

Arduino IDE

Story

About

The project is about KY-026 flame sensor, it tells you if there is fire, it have Analog pin

so you can analogRead() it, and it have digital pin, so you can digitalRead()

it.

It have G must be connected to GND and + must be connected to VCC (V5).

Pinout

D0 Is the digital pin,

A0 Is the analog pin,

G Is GND,

+ Is VCC (V5).

Syntax

so you can take the analog value by this syntax :

int variable_name = analogRead(analogPin);

It will give you a number from 0-->1023 because it uses 10 bit while turnig from

A-->D.

and you can take the digital value by this syntax :

int variable_name = digitalRead(digitalPin);

Code

KY-026 Flame sensor

#define led 3 // define the LED pin
#define digitalPin 2 // KY-026 digital interface
int digitalVal; // digital readings
void setup()
{
  pinMode(led, OUTPUT);
  pinMode(digitalPin, INPUT);
  pinMode(digitalPin, INPUT_PULLUP);
}
void loop()
{
  // Read the digital pin
  digitalVal = digitalRead(digitalPin);
  if (digitalVal == HIGH) // if flame is detected then
  {
    digitalWrite(led, HIGH); // turn ON Arduino's LED
  }
  else
  {
    digitalWrite(led, LOW); // turn OFF Arduino's LED
  }
}