2 open source boards using the STM32F103CBUx

Real designs built with the STM32F103CBUx, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.

The STM32F103CBUx in open source designs

The gallery holds 2 open source boards using the STM32F103CBUx from 2 GitHub repositories; a typical one measures about 43 × 28 mm and carries around 62 components.

50% are two-layer designs, the rest use four layers or more, and 50% carry an open source license.

The most starred is Blackmagic bmp22-clone by sergiomd4.

Microcontrollers on boards using the STM32F103CBUx

What boards using the STM32F103CBUx are built for

STM32F103CBUx: common questions

Where can I find a STM32F103CBUx reference design?

Each of the 2 boards on this page is a real design using the STM32F103CBUx. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.

Which microcontrollers do boards using the STM32F103CBUx use?

Most are built on STM32 (2).

How big is a typical board using the STM32F103CBUx?

The median is 43 × 28 mm, and 50% are two-layer designs.

What is the most popular open source board using the STM32F103CBUx?

By GitHub stars, Blackmagic bmp22-clone by sergiomd4, with 4 stars.

Can I simulate one of these boards using the STM32F103CBUx before building it?

Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.

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