4 layers40 × 23 mm
4 layers30 × 30 mm
Devboard
Outdatedcandy92/TinySTM32TinySTM32 is a small 30mmx30mm devboard that features a STM32F103T8U6. It has two programmable buttons and LEDs on board, and 18 pins broken out.
- Size
- 30 × 30 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 37
- Nets
- 39
- Pads
- 145
- Tracks, vias
- 266, 50
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 May 2026
- Updated
- 11 May 2026
Overview
Devboard is an open-source printed circuit board by Outdatedcandy92, from the Outdatedcandy92/TinySTM32 repository on GitHub, published under the MIT licence. It is a 4-layer board of 30 × 30 mm with 37 parts on 39 nets, routed with 266 tracks and 50 vias.
Its parts include 11 capacitors, 7 resistors, 4 diodes, 4 connectors and 4 switches. It belongs with the microcontroller boards boards and the STM32 boards of this library.
README
README.mdTinySTM32
TinySTM32 is a small 30mmx30mm devboard that features a STM32F103T8U6. It has two programmable buttons and LEDs on board, and 18 pins broken out.
Hardware
Schematic
PCB
3D PCB
Case
The case uses M2 screws to mount the PCB.
License
This project is licensed under the CERN Open Hardware Licence Version 2 Weakly Reciprocal (CERN OHL W)
Parts
37| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C6, C11 |
| 5 | 10K | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R6, R7 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C7, C8 |
| 4 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3, D4 |
| 4 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2, H3, H4 |
| 3 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J2, J3, J4 |
| 2 | 15pF | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 1 | 8Mhz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | BOOT | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW2 |
| 1 | BTN1 | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW3 |
| 1 | BTN2 | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW4 |
| 1 | RESET | easyeda2kicad:SW-SMD_L3.9-W3.0-P4.45 | SW1 |
| 1 | STM32F103T8Ux | Package_DFN_QFN:QFN-36-1EP_6x6mm_P0.5mm_EP4.1x4.1mm | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | easyeda2kicad:USB-C-SMD_TYPE-C-16PIN-2MD-073 | J1 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U1 |
Questions
How big is the Devboard PCB?
It measures 30 × 30 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Devboard use?
37 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 Devboard KiCad files?
From the Outdatedcandy92/TinySTM32 repository on GitHub, at the commit this page was made from: the board is kicad/Devboard.kicad_pcb and its schematic kicad/Devboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Devboard design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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