Instructions

IDUINO for maker’s life
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This is a flame sensor module that can be used to detected whether a flame source exist
or not. It’s sensitive to IR wavelength at 760nm~1100nm. Usually, the detection angle is
about 60 degrees.
Specification
 Operation voltage: 5V for analog, 3.3V for digital
 Both digital and analog output pin
 Adjustable sensitive
 Detect IR wavelength: 760nm~1100nm
 Size: 45*15mm
 Weight: 3g
2.Pinout
Pin
Description
A0
Analog output pin, real-time output voltage
signal on thermal resistance
D0
Digital output pin, output Low or High
signal when the temperature reaches a
certain threshold
+
Power(5V for analog, 3.3V for digital)
G
Ground
3.Example
Here is an example for how to use both the analog pin(A0) and digital pin(D0), connect the
circuit as below, upload this sketch, open the Serial Monitor, you will see the real-time value
of the thermal resistance, and once the flame closing to it, the value will change. If the value
reaches a certain threshold, the D0 pin will output High signal meanwhile the LED13 turns
on. And threshold can be adjusted by potentiometer.