Analog Flame Sensor


This module can detect fire, it returns an analog value.

The range of the return value is 0-1023, a higher value means the sensor is closer to fire.


  • Voltage: 3.3V~5V

  • Type: Analog Sensor

  • Interface: 3Pin PH2.0

Wiring Diagram

This is an analog module, it can only use P0-P2.(Remove the buzzer jumper when P0 is in use.)

Robotbit Shield

Connect the sensor to Robotbit Shield’s 3Pin port.



Connect the sensor to Robotbit’s pin and 3V pin.


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This module can be used with Microbit and Meowbit.

Reading the flame value





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Load the Robotbit extension


Reading the flame value


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Reading the flame value