Noob asks for review

[gmc]

As Paul said use power symbols instead of labels. It will make things a lot easier to read.

For example:

Looks a lot easier to read like this:

And can be moved out of the way.

Using labels for power is confusing like for example around J6 where is 3.3V connected?

A few general rules to make the schematic easier to read:

• positive voltages point up and GND and negative point down.
• NPN transistors - orient the symbol so the arrow points down
• Don’t run wires through components. (U1)

Use non connected flags and run a ERC check.

The LED driver around Q1 does not make sense. With a bit of re-arranging it looks like this:

Top of R14 should be connected to some supply and not back to IO2?

[Daniele_Viti]

Thank you all, i’ll update the schematics and check everything, i resolved some ERC errors and now i’ll organize everything better, i’ll show you the result if you happen to be interested.

[RaptorUK]

@paulvdh

Source? (of that info).

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

[Daniele_Viti]

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

[paulvdh]

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.)

[Daniele_Viti]

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.

[RaptorUK]

@Daniele_Viti

What do you think?

I think this is a KiCad forum . . .

[Daniele_Viti]

You are right, i’m sorry

[Daniele_Viti]

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?

[RaptorUK]

Either . . .

Or . . .

Or . . .

S

[Daniele_Viti]

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

[Piotr]

@Daniele_Viti

It is called “Hierarchical Sheets” on my version,

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

[Daniele_Viti]

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)

[RaptorUK]

@Daniele_Viti

Version: 9.0.2-2.fc42, release build

Ah, my screen shots were from V8.0.9

[Docara]

How excactly is this about Kicad?

Come on Mods

[Daniele_Viti]

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?

[RaptorUK]

@Docara

Come on Mods

@RaptorUK

I think this is a KiCad forum . . .

Already pointed out . . .

[halachal]

Off-topic post closure

We are trying to keep this forum as useful to KiCad users as possible. This means focusing on KiCad related topics. There exists a continual danger of slipping to the subject of general electronics where people (hobbyists, newcomers) ask for help with basic electronics without any relevance to KiCad. These topics will be closed without hesitation. Nothing personal is intended, nor does it mean that the question or the topic isn’t useful or interesting. Chances of questions being answered can b…

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

[Piotr]

@Daniele_Viti

what is not about KiCad here?

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.

[jmk]

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

@Daniele_Viti

I’m looking for an advice on how to fix the mess i’ve made

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?