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Electronics => Microcontrollers => Topic started by: profdc9 on February 24, 2024, 03:38:24 am

Title: Customized Pi Pico board
Post by: profdc9 on February 24, 2024, 03:38:24 am

I designed my own Pi Pico board that has a nearly compatible pinout (except for 3V3EN) to the official Pi Pico PCB, but has customizations I wanted to make such as a different USB connector, bigger flash (16 MB), linear regulator, and easier resetting (no pulling the usb plug) for development.  I also did it to have an example of a Pi Pico project, and to have it be manufacturable at JLCPCB.  You can find it at:

https://www.github.com/profdc9/PicoAlt (https://www.github.com/profdc9/PicoAlt)

[attachimg=1]

Title: Re: Customized Pi Pico board
Post by: dobsonr741 on February 24, 2024, 05:48:01 am

The schematics is off on GitHub

Title: Re: Customized Pi Pico board
Post by: profdc9 on February 24, 2024, 04:06:31 pm

Sorry, the correct schematic is now there.   :P

Title: Re: Customized Pi Pico board
Post by: MarkT on February 25, 2024, 02:37:28 pm

Looks interesting - the linear reg and reset button are both useful I think.
I worry there's no copper area for the linear regulator to dissipate heat though - this is a 2-layer board I think, no hidden heatsinking internal planes?

Title: Re: Customized Pi Pico board
Post by: profdc9 on February 26, 2024, 03:25:12 am

I made almost the entire back side solid copper.  See the attached picture.

[attachimg=1]