Microcontroller
About the Microcontroller PCB
Microcontroller is an open source STM32 PCB design by ad-astra-et-ultra, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 47.5 × 33.6 mm, with 24 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 12 capacitors, 4 connectors, 2 ICs, 2 resistors, 1 crystal and 1 switch.
From the project
A general-purpose microcontroller PCB design for various applications.
Main components on the Microcontroller
Microcontroller bill of materials (BOM)
24 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | STM32F103C8T6 | LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 3 | Conn_01x04_Male | PinHeader_1x04_P2.54mm_Vertical | J1, J2, J3 |
| 1 | USB_B_Micro | USB_Micro-B_Wuerth_629105150521 | J4 |
| 1 | SW_SPDT | SW_SPDT_PCM12 | SW1 |
| 1 | blue | LED_0603_1608Metric | D1 |
| 1 | 120R | L_0603_1608Metric | FB1 |
| 2 | 22u | C_0805_2012Metric | C1, C2 |
| 1 | 10p | C_0603_1608Metric | C3 |
| 5 | 100n | C_0402_1005Metric | C4, C6, C8, C9, C10 |
| 1 | 10p | C_0402_1005Metric | C7 |
| 1 | 10n | C_0402_1005Metric | C11 |
| 2 | 1u | C_0402_1005Metric | C12, C13 |
| 1 | 1k5 | R_0402_1005Metric | R1 |
| 1 | 10k | R_0402_1005Metric | R2 |
Microcontroller design files
The KiCad project lives in the ad-astra-et-ultra/Microcontroller-PCB repository on GitHub; these links point at the commit this page was built from.
- LayoutbluePill.kicad_pcb
- SchematicbluePill.kicad_sch
Microcontroller: common questions
What microcontroller does the Microcontroller use?
The Microcontroller is built around the STM32F103C8T6, from the STM32 family.
How big is the Microcontroller PCB?
The Microcontroller measures 47.5 × 33.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Microcontroller?
24 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the Microcontroller design files?
From the ad-astra-et-ultra/Microcontroller-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Microcontroller design in my own project?
Yes, under the terms of its Apache-2.0 license, which ad-astra-et-ultra chose for the repository.
Can I test firmware for the Microcontroller 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.
Similar boards
STM32LumenPnP Motherboard
opulo-inc
149 × 95 mm296 parts4LCC-BY-SA-4.03.7k
STM32AxxSolder
AxxAxx
39 × 82.5 mm122 parts2LGPL-3.01.7k
STM32LibreVNA
jankae
122 × 98 mm592 parts6LGPL-3.01.6k
STM32AIOC
skuep
21 × 31.5 mm47 parts2LMIT1.4k
STM32Ferris
pierrechevalier83
208.8 × 86.8 mm102 parts2LSHL-2.11.3k
STM32176 pin board
rusefi
61.8 × 73.2 mm76 parts2LGPL-3.01.2k