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Flame Sensor for Arduino

Flame Sensor for Arduino - This flame sensor can be added to you surveillance robot for additional detection of an ongoing fire. This module can be easily used as this only needs to be connected to Digital Pin, VCC and GND Pins to operate. This sensor needs 5v to operate. You can adjust its sensitivity/threshold by rotating the potentiometer.


  • High Photo Sensitivity
  • Fast Response Time
  • Sensitivity adjustable
  • Working voltage: 3.3v-5v
  • Detect range: 60 degrees
  • Digital/Analog output
  • On-board LM393 chip
  • Dimension of the board: 3.2cm x 1.4cm

Frequently Asked Questions

Question 1) How can I test the Arduino's flame sensor?

Answer 1) A flame sensor controls the amount of gas that enters your furnace and, if the furnace does not light, instantly closes the gas valve. Such a functioning principle is designed to avoid gas buildup or disastrous explosions. Place a lit match or a lit lighter in front of the flame sensor to check its functionality. The Flame Sensor produces HIGH output when things are normal. The sensor's output turns LOW if it discovers any fire. The buzzer is turned on when Arduino detects this low signal on one of its input pins.

Question 2) Which sensor does fire detection?

Answer 2) For both the detection and prevention of fire and the hazards of fire, MWIR infrared (IR) cameras are able to identify heat and, with specific algorithms, can also detect hotspots within a scene as well as flames. These cameras function both indoors and outdoors and can be used in total darkness.

Question 3) What does the flame sensor produce?

Answer 3) Based on the Infrared (IR) wavelength produced by the flame, the flame sensor determines whether there is fire or flame present. In the event that a flame is found, it outputs logic 1, otherwise, logic 0.

Question 4) What does an IR sensor look for?

Answer 4) A UV/IR flame detector is made up of UV and IR sensors that are attached to one another in a single device. UV sensors are sensitive to a variety of combustible fuels, including hydrocarbons, sulphur, hydrazine, and ammonia, and they operate by sensing the UV light released by the flame.

Flame Sensor for Arduino

Flame Sensor for Arduino

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