Published June 5, 2018 © Apache-2.0

Arduino Modules - Flame Sensor

For DETECTING fire for about a small range of 3 feets

BeginnerFull instructions provided64,712

Things used in this project

Hardware components

Arduino UNO

SparkFun Sensor Kit

Software apps and online services

Arduino IDE

Story

Quick and simple start guide for using and exploring the Flame Sensor module with an Arduino.

Materials needed:

Flame Sensor (model with an analog out)

Male to Female jumper wires

An Arduino, any flavor.

Lighter or another flame source for testing.

Step 1: Getting to Know Your Flame Sensor:

Usage:These types of sensors are used for short range fire detection and can be used to monitor projects or as a safety precaution to cut devices off / on.

Range:I have found this unit is mostly accurate up to about 3 feet.

How it works:The flame sensor is very sensitive to IR wavelength at 760 nm ~ 1100 nm light.

Analog output (A0): Real-time output voltage signal on the thermal resistance.

Digital output (D0): When the temperature reaches a certain threshold, the output high and low signal threshold adjustable via potentiometer.

Pins:

VCC...... Positive voltage input: 5v for analog 3.3v for Digital.

A0.......... Analog output

D0......... Digital output

GND..... Ground

Step 2: Testing and Troubleshooting:

Testing: To test the Flame Sensor and ensure that it is working correctly connect the VCC to a 5v power source and GND. Move a flame source with in a foot of the front of the Ir sensor and the D0-LED should light up.

Troubleshooting:

If the D0-LED does not light up check the following:

Is the power source 5v?

Is the ground hooked up?

Is the flame with in 1 foot and in Line of Sight?

If none of the previous makes the D0-LED light up, your sensor may be defective.

Step 3: Wiring to an Arduino:

To wire the Flame Sensor to the Arduino simply connect the following as shown:

Flame sensor............... Arduino

VCC............................... 5v

GND...............................GND

A0.................................. Analog in 0

Step 4: Arduino Sketch Example:

The following code maps and reads the analog values given by the flame sensor (0-1024). The stock flame sensor will have the following reaction with this code:

If holding a flame within 1.5 feet in front of the sensor; "case 0" will be activated and " ** Close Fire ** " will be sent to the serial monitor. If holding a flame between 1.5 feet and 3 feet in front of the sensor; "case 1" will be activated and " **Distant Fire** " will be sent to the serial monitor. If no flame is detected in front of the sensor; "case 2" will be activated and " No Fire " will be sent to the serial monitor.

* To view the output, point a serial monitor such as Putty at your Arduino.

* This code is constantly updating in order to provide a real time feedback of the flame sensor.

Schematics

Code

CODE FOR FLAME SENSOR

// lowest and highest sensor readings:
const int sensorMin = 0;     // sensor minimum
const int sensorMax = 1024;  // sensor maximum

void setup() {
  // initialize serial communication @ 9600 baud:
  Serial.begin(9600);  
}
void loop() {
  // read the sensor on analog A0:
	int sensorReading = analogRead(A0);
  // map the sensor range (four options):
  // ex: 'long int map(long int, long int, long int, long int, long int)'
	int range = map(sensorReading, sensorMin, sensorMax, 0, 3);
  
  // range value:
  switch (range) {
  case 0:    // A fire closer than 1.5 feet away.
    Serial.println("** Close Fire **");
    break;
  case 1:    // A fire between 1-3 feet away.
    Serial.println("** Distant Fire **");
    break;
  case 2:    // No fire detected.
    Serial.println("No Fire");
    break;
  }
  delay(1);  // delay between reads
}

Credits

SURYATEJA

18 projects • 59 followers

Arduino Modules - Flame Sensor

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: Getting to Know Your Flame Sensor:

Step 2: Testing and Troubleshooting:

Step 3: Wiring to an Arduino:

Step 4: Arduino Sketch Example:

Custom parts and enclosures

CONNECTIONS

Schematics

CONNECTIONS

Code

CODE FOR FLAME SENSOR

Credits

SURYATEJA

Comments

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Arduino Modules - Flame Sensor

Arduino Modules - Flame Sensor

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: Getting to Know Your Flame Sensor:

Step 2: Testing and Troubleshooting:

Step 3: Wiring to an Arduino:

Step 4: Arduino Sketch Example:

Custom parts and enclosures

CONNECTIONS

Schematics

CONNECTIONS

Code

CODE FOR FLAME SENSOR

Credits

SURYATEJA

Comments

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