(SKU:RB-02S022)Flame Sensor

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Product overview

New far-infrared flame sensor can be used to detect fire or some other wavelength at 760 nm to 760 nm range of heat source, the detection Angle of 60 degrees, the near infrared wavelength at 940 nm, the maximum sensitivity. Sensor AD hoc M3 fixed mounting holes, adjust the direction and fixed is convenient and easy to use, the flame sensor in the fire-fighting robot game or search and rescue robot contest plays a very important role, it can be as a soccer robot eyes to find the fire or light sources, combined with extended board controller and sensor, it can be made available fire-fighting robot, robot soccer, etc.


  1. power supply voltage: 4.5~5.5V
  2. work environment: -25~+85℃
  3. Storage temperature: -30~+100 ℃
  4. Receive the wavelength: 760nm~1100nm
  5. Module size: 13.7mm×37.8mm
  6. module of weight: 2g

Method of use

Pin definition

  • S:output signal
  • +:(VCC)
  • -:(GND)

Connection diagram


Application of routine

Flame sensor probe working temperature is 25 degrees Celsius to 85 degrees Celsius, it is important to note that in the process of using flame sensor probe cannot too close to the distance from the flame, so as to avoid damage. For flame sensor below the measured data, a candle for the fire, the measured normal indoor fluorescent lamp environment:No fire, on the fluorescent lamp:0.35V-0.12V

  10cm:4.98V  		  20cm:4.88V
  30cm:4.72V            40cm:3.77V
  50cm:2.89V            60cm:2.34V
  70cm:1.92V            80cm:1.45V
  90cm:1.15V            100cm:0.96V
Here we use Arduino controller to do the test, the Arduino itself 10 AD sampling circuit, we connect the sensor to my Arduino A0 mouth of analog input.

sample code

void setup(){       
void loop(){       
   Serial.print("Flame Sensor Value:");

Application effect

Through simulation of the mouth 0 collection flame sensor signal, and then output to a computer via a serial port, we can see the results using serial debugging assistant software. We can according to the serial port to return to the analog voltage value, and to know our distance sensor to the obstacles ahead.

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