ESP32-DEV-CH340-C Symbol and foorprint

[Mahmood_AL-Rubaiai]

Hi, I am using and esp32 devkit for a project.
I want to design a PCB to mount it, but I cant find a model online for this specific board (ESP32-DEV-CH340-C)

ESP32 Dev Board CH340 - USB-C - Micro Robotics

does anyone know where I can find a ready to use model because it will save me a lot of time not to design the symbol and footprint from scratch.

[RaptorUK]

@Mahmood_AL-Rubaiai

does anyone know where I can find a ready to use model because it will save me a lot of time not to design the symbol and footprint from scratch.

Have you asked this question of the company you are buying this module from ?

[Mahmood_AL-Rubaiai]

I bought it of AliExpress, there are no information of the manufacturer, i tried to look in other websites but no luck

[hermit]

The board has 2x19pin extension headers,

GitHub - microrobotics/ESP32-DEV: ESP32-DEV Board with ESP-WROOM-32 and...

[RaptorUK]

I think the safest way will be to create your own symbol and footprint.

Perhaps you can start with something from here:

GitHub - espressif/kicad-libraries: KiCad libraries for Espressif SoCs,...

. . . and modify it to match what you have purchased. It’s only way you can be sure you have the correct symbol & footprint.

[Mahmood_AL-Rubaiai]

the one i have has 2x15pins, i think i can use two headers to represent the esp32 instead of the devkit itself

[Mahmood_AL-Rubaiai]

I think this is the best way too, i am just new to pcb designing and don’t want to spend time on the symbols and footprints, however i had an idea to use 15 pin headers to represent the esp32 board.

[hermit]

@RaptorUK

. . . and modify it to match what you have purchased. It’s only way you can be sure you have the correct symbol & footprint.

@Mahmood_AL-Rubaiai

the one i have has 2x15pins, i think i can use two headers to represent the esp32 instead of the devkit itself

I simply followed the link trail from what you posted. So definitely head @RaptorUK 's sage advice here.

[hermit]

@Mahmood_AL-Rubaiai

however i had an idea to use 15 pin headers to represent the esp32 board.

Remember, you aren’t modeling the dev board. You are making a board to mount it on. Just using the pin headers and is the correct solution.

[Mahmood_AL-Rubaiai]

@hermit

You are making a board to mount it on. Just using the pin headers and is the correct solution.

I think this is my best option for now, thank you both @hermit @RaptorUK for the input.

[jmk]

And maybe add a rectangle on a different layer to represent the overall dimensions of the module?

Your schematic is just a rectangle with 30 pins. The names of the pins are printed on the module. Make sure your schematic pin numbers match the pin names and the footprint pads.

[teletypeguy]

Advise one choosing components

When I do a module, I make two components: The socket and the actual module. The socket has the main schematic symbol with all the pins, and has a 3d model with the socket(s). If it is a single sip socket it is easy enough, if it has a couple of sip sockets I build it in freecad. The module symbol for the schematic is just a little box, and the footprint is also just a box (on user drawings layer, not on silk) the size of the module. The 3d model is the actual module, elevated in z to the l…

[BlackCoffee]

For any project that I actually build, I use my own-homemade models so I get reasonably accurate dim’s for enclosure’s and other related hardware. I don’t care about the unnecessary hardware on them…such as the Chips but, I do put some items on for more representative graphic…

These are my two ESP32’s (30-Pin and 38-Pin). I recently built some projects with them.

Added Footprints… and Symbol (don’t know how well Exported Symbol will be… Never exported one for posting… and not Dimensioned to actual device…)

ADDED: Symbol for ESP32-30 Pin

Step Models:
ESP32.zip (3.0 MB)

Footprints:
ESP32_Footprints.zip (5.3 KB)

Symbol (for 38-Pin ESP32):
esp32_38pin.kicad_sym (10.9 KB)

Symbol (for 30-Pin ESP32):
esp32_30pin.kicad_sym (9.9 KB)