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Floppy board 3.0

FloppyO1·Floppy_Boards·Floppy Board/Floppy Board 3/Floppy Board v3.1/Floppy Board v3.1.kicad_pcb

Floppy board 3.0 layout, top view — open source STM32 board by FloppyO1

About the Floppy board 3.0

Floppy board 3.0 is an open source STM32 PCB design by FloppyO1, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 20.5 × 41.2 mm, with 33 components from 23 distinct parts.

Its main chip is the STM32G03XXXXX, from the STM32 family. Other key parts include the AT24C32, H7233-1 and CH340N. By type, the board carries 9 capacitors, 7 resistors, 5 diodes, 4 ICs, 3 jumpers and 2 connectors.

It belongs with the dev boards & breakouts designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

Floppy Boards are a series of breakout boards for rapid prototyping which I developed as an alternative of Arduino.

The third version of the Floppy Board, this board has incorporated all possible improvements regarding the interface between the Floppy Board and the computer. In this version, it excels over the others in the following aspects:

- The last upgrade includes a USB-C port, allowing you to power our projects and load firmware directly without the need for an ST-Link. - Additionally, the board has been further downsized, featuring two holes on each side when inserted into a breadboard! - I've added a pin where you can access the incoming 5V voltage from the USB , enabling you to power external…

Floppy board 3.0, from the project README
From the project README

Main components on the Floppy board 3.0

STM32G03XXXXXAT24C32H7233-1CH340N

Floppy board 3.0 bill of materials (BOM)

33 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32G03XXXXX
STM32G03xxxxx
U1
1
AT24C32
U2
1
H7233-1
U3
1
CH340N
U4
1
USB-C_304A-ACP16X
J2
1
I/0 DX
J4
1
500MA
500mA
F1
1
SDA_JP
JP1
1
SCL_JP
JP2
1
WP_JP
JP3
1
RESET_B
SW1
1
BOOT0/U_BUTT
SW2
2
SD103AW
D1, D5
1
USER_LED
D2
1
SD103AW
D3
1
3V3_POWER_LED
D4
1
4.7UF
4.7uF
C1
5
100NF
100nF
C2, C3, C6, C8, C9
2
1UF
1uF
C4, C5
1
10UF
10uF
C7
Show 3 more
QtyPartRefs
1
10K
10k
R1
4
5.1K
5.1k
R2, R3, R6, R7
2
1k
R4, R5

Floppy board 3.0 design files

The KiCad project lives in the FloppyO1/Floppy_Boards repository on GitHub; these links point at the commit this page was built from.

Floppy board 3.0: common questions

What microcontroller does the Floppy board 3.0 use?

The Floppy board 3.0 is built around the STM32G03XXXXX, from the STM32 family.

How big is the Floppy board 3.0?

The Floppy board 3.0 measures 20.5 × 41.2 mm, has 2 copper layers and is 1 mm thick.

How many components are on the Floppy board 3.0?

33 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Floppy board 3.0 design files?

From the FloppyO1/Floppy_Boards repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Floppy board 3.0 design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which FloppyO1 chose for the repository.

Can I test firmware for the Floppy board 3.0 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.

More boards in Floppy_Boards

Earlier revisions in the repo: Floppy Board v3.0

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