Stm32f103-dev board
ajmalpro11·stm32f103-dev-board
About the Stm32f103-dev board
Stm32f103-dev board is an open source STM32 PCB design by ajmalpro11, published on GitHub under the MIT license. It is a 2-layer board measuring 42 × 35.5 mm, with 28 components from 16 distinct parts.
Its main chip is the STM32F103C8T6, from the STM32 family. Other key parts include the AMS1117-3.3. By type, the board carries 13 capacitors, 5 resistors, 4 connectors, 2 ICs, 1 crystal and 1 switch.
It belongs with the dev boards & breakouts and wearables designs in this gallery.
From the project
A complete, manufacturable 2-layer PCB for an STM32F103C8T6 microcontroller with USB, on-board 3.3 V regulation, crystal oscillator, SWD debug, and broken-out GPIO/UART/I²C headers. Designed from scratch in KiCad — from schematic capture through DRC-clean routing to a full, fab-r
A complete, manufacturable 2-layer PCB for an STM32F103C8T6 microcontroller with USB, on-board 3.3 V regulation, crystal oscillator, SWD debug, and broken-out GPIO/UART/I²C headers. Designed from scratch in KiCad — from schematic capture through DRC-clean routing to a full, fab-ready manufacturing package (Gerbers, drill, BOM, and pick-and-place).
The STM32 "Blue Pill" / "Black Pill" family is a popular, low-cost way to move from Arduino-style modules toward professional embedded hardware. This project recreates that concept as a fully custom PCB to learn the complete hardware design…

Main components on the Stm32f103-dev board
Stm32f103-dev board bill of materials (BOM)
28 components, 16 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | STM32F103C8T6 | LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | 16MHZ 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | USB_B_Micro | USB_Micro-B_Wuerth_629105150521 | J1 |
| 3 | CONN_01X04_PIN Conn_01x04_Pin | PinHeader_1x04_P2.54mm_Vertical | J2, J3, J4 |
| 1 | SW_SPDT | SW_SPDT_PCM12 | SW1 |
| 1 | RED | LED_0603_1608Metric | D1 |
| 1 | FerriteBead | L_0603_1608Metric | FB1 |
| 2 | 22U 22u | C_0805_2012Metric | C1, C2 |
| 1 | 10U 10u | C_0603_1608Metric | C3 |
| 5 | 100N 100n | C_0402_1005Metric | C4, C5, C6, C7, C11 |
| 1 | 10N 10n | C_0402_1005Metric | C8 |
| 2 | 1u | C_0402_1005Metric | C9, C10 |
| 2 | 10P 10p | C_0402_1005Metric | C12, C13 |
| 4 | 1K5 1k5 | R_0402_1005Metric | R1, R3, R4, R5 |
| 1 | 10K 10k | R_0402_1005Metric | R2 |
Stm32f103-dev board design files
The KiCad project lives in the ajmalpro11/stm32f103-dev-board repository on GitHub; these links point at the commit this page was built from.
- LayoutSTM32.kicad_pcb
- SchematicSTM32.kicad_sch
- BOMmanufacturing/bom/STM32_PCB_Bom.csv
Stm32f103-dev board: common questions
What microcontroller does the Stm32f103-dev board use?
The Stm32f103-dev board is built around the STM32F103C8T6, from the STM32 family.
How big is the Stm32f103-dev board?
The Stm32f103-dev board measures 42 × 35.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Stm32f103-dev board?
28 components, from 16 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 Stm32f103-dev board design files?
From the ajmalpro11/stm32f103-dev-board 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 Stm32f103-dev board design in my own project?
Yes, under the terms of its MIT license, which ajmalpro11 chose for the repository.
Can I test firmware for the Stm32f103-dev board 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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