what am i missing? is this even possible?

[superwester]

so i need that a change in a voltage caused by a potentiometer to trigger a high logic level using an lm393.

i thought this could be achieved by "delaying" the signal of the potentiometer via a resistor and a capacitor in series connected to the inverting pin of the comp. (just trying with one input of the lm393 for now).[see schematic attached]

this isnt a solution right now. i cant find the right combination of resistance a capacitance to make this work, if they are too low  the change isnt big enough to trigger the lm393 and if it is too big the voltage drop across the resistor and capacitor makes it always on.

this analisis is all guessing because i dont have an oscilloscope to measure yet.

if this is fundamentally wrong or you have any tips to make this work or just another solution and leave this idea please let me know

thanks in advance...

W.

[superwester]

im such a dumb ass...

thank you!

[Fludo]

You will need some type of transistor or switch on the output. The LED is always on because it is receiving 5V from the supply at all times.