The MikroE Flame Click Board™ is a fire detection solution sensitive only to the infrared radiation from an open flame. This fire detector Click Board™ features a PT334-6B NPN silicon phototransistor covered in black epoxy. Being an infrared sensor, once properly calibrated, it can be used in a range of applications where you need to detect the presence of a high-heat source. Proper calibration can be done using the onboard potentiometer that allows the user to set up the exact detection threshold. When the threshold level is attained, the module sends an interrupt to the target board's MCU through the MikroBUS INT pin. Otherwise, the sensor can also output a continuous analogue signal through the MikroBUS AN pin.
Based on a highly sensitive phototransistor, the Flame Click Board™ has a faster reaction time than smoke or heat sensors and thus makes for a good choice for electric fuse boxes, motor boxes, cameras, etc. It is designed to use either a 3.3V or 5V power supply.