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Rotunda base

brainsmoke·rotunda·pcb/base/rotunda_base.kicad_pcb

Rotunda base PCB layout, top view — open source STM32 board by brainsmoke

About the Rotunda base PCB

Rotunda base is an open source STM32 PCB design by brainsmoke, published on GitHub. It is a 2-layer board measuring 24.7 × 25.8 mm, with 16 components from 6 distinct parts.

Its main chip is the STM32F030F4, from the STM32 family. By type, the board carries 11 connectors, 2 capacitors, 1 IC, 1 battery holder and 1 resistor.

From the project

charlieplexed PCB polyhedron

Rotunda base, from the project README
From the project README

Main components on the Rotunda base

STM32F030F4

Rotunda base bill of materials (BOM)

16 components, 6 distinct parts.

QtyPartRefs
1
STM32F030F4
IC1
10
CONN_01X01
P1, P2, P3, P4, P5, P6, P7, P8 +2
1
CONN_01X05
P11
1
Battery_Cell
BT1
2
C
C1, C2
1
10k
R1

Rotunda base design files

The KiCad project lives in the brainsmoke/rotunda repository on GitHub; these links point at the commit this page was built from.

Rotunda base: common questions

What microcontroller does the Rotunda base use?

The Rotunda base is built around the STM32F030F4, from the STM32 family.

How big is the Rotunda base PCB?

The Rotunda base measures 24.7 × 25.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rotunda base?

16 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rotunda base design files?

From the brainsmoke/rotunda repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Rotunda base design in my own project?

The repository has no license, so all rights stay with brainsmoke. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Rotunda base without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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