LM393 Comparator for Noobs (with test circuit)

[@nikolasgrande1912]

I had no idea you needed to pull the output up, very useful video

[@RSP13]

You were the only one to warn me about the open collector. Thanks!

[@adminwintrec2768]

Very clear presentation

[@jimedgar6789]

Good job, son. Open collector explanation well done.

[@jugnu361]

Thanks

[@Stephens8x6Workshop]

A good explanation, thank you :-)

[@kavindugilshan]

Life saver thank you so much .

[@arefmohammadzadeh8560]

informative...
thank you.

[@alexandr_84]

Здравствуйте.
На входы компаратора можно подавать напрямую плюс или минус питания, без резистора?

[@lifeofleoua6695]

I don't speak Russian but I'll try to answer your question using what I got from Google Translate.
No, the resistors are not needed for the inputs of the LM393. The only resistor that's needed is the pull-up resistor R7 at the output. Let me explain why I used the resistors on the inputs.
The LM393 compares the voltages at each input. Making the voltage dividers with the resistors on the (-) makes it so that you can choose what voltage turns the LED on or off. In real life, the potentiometer on the (+) side is usually a sensor that jumps between 2 voltages. By using the resistors on the (-) side, you can set a voltage in between those two voltages. That makes one of the sensor's states power the LED and the other state not power the LED.

[@alexandr_84]

@@lifeofleoua6695
Thank you

[@thepinkplant]

So much hands

[@georgeowen2083]

Two things one it’s very hard to hear you, second you need to get closer nobody can what you are talking about.