This sensor detects flame (otherwise wavelength) within the range of 760 nm – 1100 nm from the light source. This sensor can be easily damaged to high temperature. So this sensor can be placed at a certain distance from the flame. The flame detection can be done from a 100cm distance and the detection angle will be 600. The output of this sensor is an analog signal or digital signal. These sensors are used in fire fighting robots as a flame alarm.

The pin configuration of this sensor is shown below. It includes four pins which include the following. When this module works with a microcontroller unit then the pins are

  • Pin1 (VCC pin): Voltage supply rages from 3.3V to 5.3V
  • Pin2 (GND): This is a ground pin
  • Pin3 (AOUT): This is an analog output pin (MCU.IO)
  • Pin4 (DOUT): This is a digital output pin (MCU.IO)