Noob asks for review

Maybe its the non lead free version I found . . .

Sorry i don’t understand, which SVR component should i use?

What is an SVR?

I do not believe in obsolescence for the LM2596 any time soon. Some specific variants may go out of production, but there are plenty of others left. Mouser (as indicated by Raptor) sells them from both Ti and Onsemi. On LCSC, you see them from TWGMC, UMW, HGSEMI, GR, HANCHIP and probably more, but I stopped scrolling down the list. (The list is 182 items long.)

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There is this other thing i figured out, the ESP32-WROOM-32D Obsolescence in 2031, which yes, is very far away but still they do not recommend it’s usage in new designs…
They instead lean toward the new version which is this it seems: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf

What do you think?
The new version costs a lot more than the old one but still… they are both so cheap that will be like counting sand grains in a beach.

I think this is a KiCad forum . . .

You are right, i’m sorry

Upon Schematic re-organization i stumbled upon the available space in a single Schematic sheet, i cannot find the Place > Add Sheet button, is it normal?

Either . . .

image

Or . . .

image

Or . . .

S

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It is called “Hierarchical Sheets” on my version, for some reason, didn’t noticed because of that.

We don’t know what version you use, know we?

Application: KiCad Schematic Editor x86_64 on x86_64

Version: 9.0.2-2.fc42, release build

Libraries:
wxWidgets 3.2.8
FreeType 2.13.3
HarfBuzz 10.4.0
FontConfig 2.16.0
libcurl/8.11.1 OpenSSL/3.2.4 zlib/1.3.1.zlib-ng brotli/1.1.0 libidn2/2.3.8 libpsl/0.21.5 libssh/0.11.1/openssl/zlib nghttp2/1.64.0 OpenLDAP/2.6.9

Platform: Fedora Linux 42 (Workstation Edition), 64 bit, Little endian, wxGTK, X11, gnome, wayland
OpenGL: AMD, AMD Radeon Graphics (radeonsi, renoir, ACO, DRM 3.61, 6.14.9-300.fc42.x86_64), 4.6 (Compatibility Profile) Mesa 25.0.7

Build Info:
Date: May 16 2025 00:00:00
wxWidgets: 3.2.8 (wchar_t,wx containers) GTK+ 3.24
Boost: 1.83.0
OCC: 7.8.1
Curl: 8.11.1
ngspice: 44.2
Compiler: GCC 15.1.1 with C++ ABI 1020
KICAD_IPC_API=ON

Locale:
Lang: en_US
Enc: UTF-8
Num: 1,234.5
Encoded кΩ丈: D0BACEA9E4B888 (sys), D0BACEA9E4B888 (utf8)

Ah, my screen shots were from V8.0.9 :wink:

How excactly is this about Kicad?

Come on Mods

Sorry,
what is not about KiCad here? I’m asking for help on how to clean a schematic using KiCad and how to add more sheets to my KiCad project.
I don’t think there is a problem here, also i hope this thread will be useful to other people, maybe they will learn from here how to make better use of KiCad like i’m doing thanks to the kind people answering me here, don’t you think?
Just sharing free and open source knowledge and information here, isn’t it the main purpose of a public forum?

Already pointed out . . . :wink:

Your original post was asking for a general design review with no kicad-specific questions.

It is easier to say what was KiCad related. The only was: “How to add Sheet?”.
KiCad related = I_know_what_I want && I_don’t_know_how_to_do_it_with_KiCad.

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There have been a number of Kicad specific details given to help:

There have also been a number of non Kicad schematic drawing suggestions given as well as off topic IC comments.

I’d give this topic a pass, as the OP is not asking for design suggestions only about the actual schematic drawing.

Compare to the below, a little down the forum page, which has nothing to do with Kicad:

Designed a power converter circuit. Wanted to see if I missed anything?

Just use buses and hierarhical sheets. You can even write block diagrams and parts of documentation directly in KiCad sheets.

IMHO LM2596 is still “popular” between DIY and small projects because of Chinese made gazillion LM2596 clones who are sold for pennies alone or inside DIY oriented DC conversion modules. There are a lot of newer Buck DC-DC converters now - smaller and more efficient. Also ultra low drop LDOs.

Not for nothing, but you might want to check this out:

Similar to what you are trying to do – schematic layout is OK but does seem to have a better buck converter topology; not sure that will work for you though (12v vs 24v).

-Tom