Skip to main content
Ozone
Principal
October 21, 2025
Solved

small form factor STM32 boards ...

  • October 21, 2025
  • 1 reply
  • 418 views

Doing a short search, I did not find a board that conveniently fits my criteria for some future projects.
These criteria are the following :
  -  small form factor (not bigger than a Rasperry Pico, preferably smaller (Seed XIAO);
  -  MCU preferably ranging from C0, F0...F3, F40x, L0 or L1; (not an exclusive list)
  -  reasonable commercial availability in Europe;

I intend to use these board as a kind of sensor extension for Linux SBCs, with the Raspberry Pi Zero (II) as favourite. Thus the Pi Zero / Pi Pico format as upper size limit.

I can't specify more IO details yet, but the average peripherals of above mentioned MCU variants suffices for most purposes. But at least 8 or more IO lines should be available. Peak performance and low-power capabilities are not a criterium either.

If someone here knows such a board, I would welcome any suggestion.
Thanks !

Best answer by mƎALLEm

Hello,

Nucleo-32 format? 

mALLEm_0-1761046616059.png

Or STM32C0116-DK:

 

mALLEm_1-1761047804352.png

1 reply

mƎALLEm
mƎALLEmBest answer
Technical Moderator
October 21, 2025

Hello,

Nucleo-32 format? 

mALLEm_0-1761046616059.png

Or STM32C0116-DK:

 

mALLEm_1-1761047804352.png

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."
Ozone
OzoneAuthor
Principal
October 21, 2025

Thanks, I didn't notice that the Nucleo-32 format is that small !
I have a few discovery Nucleo-64 and Nucleo-144 boards, which are huge in comparison.
If I am not mistaken, this is the form factor of a DIL-40 package (like e.g. the Z80).

As an additional bonus, the Nucleo's have debug access and an onboard debugger, which many "Arduino" boards lack.

On a temporally related note, it took me a while to log in for an answer, as ST forced my to change my password.
A practice I am not at all happy about. But that is a topic for another thread ...

mƎALLEm
Technical Moderator
October 21, 2025

@Ozone wrote:

If I am not mistaken, this is the form factor of a DIL-40 package (like e.g. the Z80).


This is the real size on a bread board:

mALLEm_2-1761052373311.png

 

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."