meaningfulstring

Hi guys,

I need a circuit for a rev. counter that can transform this (+16/-20 V) input pulse to a logic high for a digital input.

https://preview.redd.it/zfv8tftt2q4f1.png?width=1688&format=png&auto=webp&s=9b6763e297a557b4e7315a45afd4fed30dfdc0ee

I came across this simple Zener + Schottky diode circuit, but I wonder if it would do the trick (btw, R1is required by the pulse generator circuit).

https://preview.redd.it/zafma6ru2q4f1.png?width=723&format=png&auto=webp&s=827c5cfb43d69bc6779377ecb0672a9de5ad0a1f

Any thoughts?

Thanks!

Hi guys, having been in Germany for over 8 years my wife and I have always managed to get by with our household activities. However, between having our first child and me taking a new job that requires frequent traveling, we are in dire need of help cleaning.

Looking online I've found (aside from Kleinanzeigen) putzperle.de, and wanted to ask if anyone has had any experience with them.

We plan on only taking help when we are both at home, but my wife is obviously very vulnerable right now and we are a bit scared of taking in strangers.

Any input would be more than welcome, thanks!