/diy/ - Do It Yourself

>>1793780
>a Schmitt trigger is a specific two-transistor circuit topology, not just a generic word for "comparator with hysteresis"
Well wikipedia says otherwise:
>From Wikipedia, the free encyclopedia
>In electronics, a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier
Regardless of what's actually correct, "schmitt trigger" referring to such a comparator configuration is what I was taught and seems to be rather commonly used.

As for whether pic related actually works as a schmitt trigger, I'll have to build the circuit on one of those tiny breadboards I've got somewhere around here. It looks like it will work, but whether or not it actually latches is something I've no clue about. I'd ditch the LED and probably R4 and R6 too, and shove another base-emitter junction somewhere to measure current and discriminate between the two states.
I'll look into that appnote thanks.