

STM32 Breakout
Breadboard PCB for the STM32F042 MCU
- Size
- 15.2 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 22
- Pads
- 86
- Tracks, vias
- 231, 29
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Dec 2020
- Updated
- 18 Mar 2021
Overview
STM32 Breakout is an open-source printed circuit board by timmit99, from the timmit99/STM32F042-Breakout repository on GitHub. It is a 2-layer board of 15.2 × 33 mm with 19 parts on 22 nets, routed with 231 tracks and 29 vias.
Its parts include 4 capacitors, 4 resistors, 4 connectors, 2 ICs and 2 diodes. It belongs with the interfaces and adapters boards and the STM32 boards of this library.
README
README.mdSTM32F042 Breakout

The board has:
- STM32F042F6P6 MCU with internal oscillator
- USB port
- Reset button
- All GPIO pins broken out
- Silkscreen (kinda)
- Power and PB1 LED
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C3, C4 |
| 2 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R4 |
| 2 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R3 |
| 2 | Conn_01x12 | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | J3, J4 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
| 1 | AP2127K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | LOGO | STM32_Breakout:THeyMadeME | G*** |
| 1 | LOGO | TRA_KiCad_Footprints:VoronLogo_6pt5mm_silkScreen | G*** |
| 1 | STM32F042F6Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | SW_SPST | STM32_Breakout:2PinTactileButton | RST |
| 1 | USB_B_Micro | STM32_Breakout:Molex-105017-0001-USBMicroB | J1 |
Questions
How big is the STM32 Breakout PCB?
It measures 15.2 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the STM32 Breakout use?
19 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the STM32 Breakout KiCad files?
From the timmit99/STM32F042-Breakout repository on GitHub, at the commit this page was made from: the board is KiCad/STM32_Breakout.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the STM32 Breakout design in my own project?
Its repository states no licence, so its author keeps all rights: ask timmit99 before reusing the design.
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