What do you think when you hear word "safety"? May be about a dog? A watchdog? Like this?

Who is a good boy!? No, not this dog. The watchdog, in uControllers, is a timer that gonna trigger, if uC is stuck, and restart uC. Why do we need it? So lets imagine, you are enjoying yours favorite vape flavor, something like hot chocolate or melone, doesn't meter, and e-cig got a glitch in program right in vaporizing proces. What gonna happen? So, the batteries could overheat and blow up, the cotton in atomizer could get in fire and e.t.c. So u understand. And exactly here on the scene comes the "Good boy", if the e-cig got a glitch, the reset gonna set all variables to default, and in default mode e-cig doesn't heat up the coil