Comparator chip LM393. Detects a flame or a light source of a wavelength in the range of 760nm-1100 nm,  Detection angle about 60 degrees, it is sensitive to the flame spectrum.  Accuracy adjustable

Operating voltage 3.3V-5V  

Output 

*  DO digital switch outputs (0 and 1)      *  AO Analog voltage output

*  power indicator and digital switch output indicator

*  With a mounting screw hole     *  PCB size: 3.1cm x 1.5cm

 Note: Please keep a distance with flame, high temperature maybe burn out the sensor module.

Interface Description (4-wire)

1 VCC: 3.3V-5V voltage

2 GND: GND

3 DO: board digital output interface (0 and 1)

4 AO: board Analog output interface

  Support our scratch driver software, can be easy use in scratch

   Scratch driver software

ADC can use MCP3002, ADS1015, MCP3424 ,

    use GPIO 4 for Digital input

 1.broadcast "3002init"  &  "g4in" GPIO 4 as input  

 2.in Sensing --> Slider , you will see the

    "GPIO-4"  & "M3002-AD0" & "M3002AD1"  in the list