2 layers290.1 × 130 mm
2 layers61 × 38.5 mm
Custom STM32G071 development board designed in KiCad with USB-C, UART, SPI, I2C, GPIO expansion and SWD programming interface.
- Size
- 61 × 38.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 46
- Pads
- 107
- Tracks, vias
- 242, 24
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 31 Aug 2026
- Updated
- 31 Aug 2026
Overview
Stm32 pcb is an open-source printed circuit board by darshanvs17, from the darshanvs17/STM32G071-Development-Board repository on GitHub. It is a 2-layer board of 61 × 38.5 mm with 17 parts on 46 nets, routed with 242 tracks and 24 vias.
It is built around the AMS1117-3.3. Its parts include 6 connectors, 4 resistors, 3 capacitors, 2 ICs and 1 diode. It belongs with the interfaces and adapters and microcontroller boards boards and the STM32 boards of this library.
Main components
1README
README.mdSTM32G071 Custom Development Board
A custom 2-layer STM32G071 development board designed from scratch in KiCad.
The board is designed as a compact embedded-systems development platform with USB-C power, SWD programming/debugging, UART, SPI, I2C and GPIO expansion interfaces.
🚀 Features
- STM32G071 microcontroller
- USB Type-C connector
- 5V to 3.3V regulated power supply
- SWD programming/debugging interface
- UART interface
- SPI interface
- I2C interface
- GPIO expansion header
- User push button
- Status LED
- On-board decoupling capacitors
- 2-layer PCB
- ERC checked
- DRC checked
- 3D PCB visualization
🧠 Microcontroller
MCU: STM32G071
The STM32G071 is an ARM Cortex-M0+ based microcontroller suitable for embedded control, communication and peripheral-interface applications.
The board exposes several MCU peripherals through dedicated headers, making it useful for firmware development and hardware experimentation.
🔌 Interfaces
| Interface | Purpose |
|---|---|
| USB-C | Power input |
| SWD | Programming & debugging |
| UART | Serial communication |
| SPI | High-speed peripheral communication |
| I2C | Sensor/peripheral communication |
| GPIO | General-purpose expansion |
⚡ Power
The board accepts power through the USB-C connector.
Power path
USB-C 5V
│
▼
AMS1117-3.3
│
▼
3.3V Rail
│
└── STM32G071 + peripheralsParts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | 100nf | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | GPIO EXPANSION | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J3 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | STM32G071KBTxN | Package_QFP:LQFP-32_7x7mm_P0.8mm | U2 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_TL3305A | SW1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | i2c | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | spi | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J6 |
| 1 | swd header | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | uart | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J5 |
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Questions
How big is the Stm32 pcb PCB?
It measures 61 × 38.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Stm32 pcb use?
17 parts, built around the AMS1117-3.3. 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 pcb KiCad files?
From the darshanvs17/STM32G071-Development-Board repository on GitHub, at the commit this page was made from: the board is stm32_pcb.kicad_pcb and its schematic stm32_pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stm32 pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask darshanvs17 before reusing the design.