Adafruit AMG8833 - how to trigger alarm??

Guys i need your help urgently please . just a simple question. i made a thermal camera using adafruit AMG8833 as the heat sensor and teensy 3.2 as the microcontroller. what do i need to add in the codes if i wanna trigger a buzzer if a temperature of 37 celcius and above is detected? im using the small piezo buzzer that has pins instead of wire. the one that you can stick it straight away on the breadboard. it has two pins

ThermalCamera_Fast_2.ino (19.9 KB)

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