Base
cuspaceflight·m3-avionics·m3base/base.kicad_pcb
About the Base PCB
Base is an open source STM32 PCB design by cuspaceflight, published on GitHub. It is a 2-layer board measuring 40 × 33 mm, with 45 components from 26 distinct parts.
Its main chip is the STM32F405RxTx, from the STM32 family. Other key parts include the MCP2562. By type, the board carries 13 capacitors, 12 connectors, 12 diodes, 5 resistors, 2 ICs and 1 crystal.
From the project
Martlet 3 Avionics
This repository contains all the avionics for Martlet 3, including system design, documentation, schematics, PCBs, and firmware.
Main components on the Base
Base bill of materials (BOM)
45 components, 26 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32F405RxTx | LQFP-64 | IC1 |
| 1 | MCP2562 | DFN-8-EP-MICROCHIP | IC2 |
| 1 | 26MHz | XTAL-20x16 | Y1 |
| 1 | WEST TOP | TFML-110-02-L-D | J1 |
| 1 | EAST TOP | TFML-110-02-L-D | J2 |
| 1 | PYRO1 | B02B-PASK | J5 |
| 1 | PYRO3 | B02B-PASK | J6 |
| 1 | ARM | B02B-PASK | J7 |
| 1 | PYRO2 | B02B-PASK | J8 |
| 1 | PYRO4 | B02B-PASK | J9 |
| 1 | PWR | B02B-PASK | J10 |
| 1 | CHG | B02B-PASK | J11 |
| 1 | CAM | B02B-PASK | J12 |
| 1 | USB | B04B-PASK | J13 |
| 1 | SWD_TC | TC2030-NL | P1 |
| 12 | ESD_DIODE | 0402 | D1, D2, D3, D4, D5, D6, D7, D8 +4 |
| 7 | 100n | 0603-L | C1, C7, C8, C11, C12, C13, C16 |
| 2 | 10p | 0603-L | C2, C3 |
| 2 | 2u2 | 0603-L | C4, C5 |
| 1 | 1u | 0603-L | C6 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 4u7 | 0603-L | C15 |
| 1 | 100R | 0603-L | R1 |
| 1 | 4K7 | 0603-L | R2 |
| 1 | 10K | 0603-L | R3 |
| 1 | 1K | 0603-L | R4 |
| 1 | 120R | 0603-L | R5 |
Base design files
The KiCad project lives in the cuspaceflight/m3-avionics repository on GitHub; these links point at the commit this page was built from.
Base: common questions
What microcontroller does the Base use?
The Base is built around the STM32F405RxTx, from the STM32 family.
How big is the Base PCB?
The Base measures 40 × 33 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Base?
45 components, from 26 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 Base design files?
From the cuspaceflight/m3-avionics repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Base design in my own project?
The repository has no license, so all rights stay with cuspaceflight. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Base 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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