proximity inductive npn no

[Hans21]

Is this correct?

[joglz8]

There are some issues.

1) There is no common voltage between the esp32 and the 24V circuit, so the esp is floating.

2) The proxes will apply too much voltage to the GPIO. Once you have a common voltage reference you then need to divide the prox output voltage down to esp input levels.

[MicroController]

The second sensor's connections are messed up.

[MicroController]

1) There is no common voltage between the esp32 and the 24V circuit, so the esp is floating.

Nope. IN- and OUT- of the LM2596 are directly connected.

2) The proxes will apply too much voltage to the GPIO. Once you have a common voltage reference you then need to divide the prox output voltage down to esp input levels.

Nope. The SIG output is passive (open collector (NPN) towards VO).