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MainFlightComputer

RockSat-X·RSXVT2026·pcb/MainFlightComputer.kicad_pcb

MainFlightComputer PCB layout, top view — open source STM32 board by RockSat-X

About the MainFlightComputer PCB

MainFlightComputer is an open source STM32 PCB design by RockSat-X, published on GitHub under the MIT license. It is a 4-layer board measuring 66 × 60 mm, with 55 components from 24 distinct parts.

Its main chip is the STM32H533VET6, from the STM32 family. Other key parts include the LIS2MDL and LSM6DSV32X. By type, the board carries 19 capacitors, 16 resistors, 8 test points, 3 ICs, 3 connectors and 2 switches.

From the project

Our experiment aims to evaluate the use of optical navigation with Commercial-off-the-Shelf (COTS) products for use in spaceflight applications. To conduct the experiment, an autonomous attitude determination and control system (ADCS) employing an optical navigation system (ONS)

Our experiment aims to evaluate the use of optical navigation with Commercial-off-the-Shelf (COTS) products for use in spaceflight applications. To conduct the experiment, an autonomous attitude determination and control system (ADCS) employing an optical navigation system (ONS) will be designed to control a 1U CubeSat, codenamed Commercial Optical Navigation Satellite (CONSat).

MainFlightComputer, from the project README
From the project README

Main components on the MainFlightComputer

STM32H533VET6LIS2MDLLSM6DSV32X

MainFlightComputer bill of materials (BOM)

55 components, 24 distinct parts.

QtyPartRefs
1
STM32H533VET6
U1
1
LIS2MDL
U2
1
LSM6DSV32X
U3
1
~
J1
1
0472192001
J2
1
Debug
J3
1
AST1109MLTRQ
BZ1
1
Jumper_3_Bridged12
JP2
2
B3U-1000P
SW1, SW2
8
TestPoint
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8
1
150141M173100
D1
1
GREEN
D6
12
100n
C1, C2, C3, C6, C7, C9, C11, C12 +4
2
2u2
C4, C8
1
4u7
C5
1
220n
C10
1
10u
C15
1
10n
C17
1
1u
C19
3
2K
R1, R2, R3
Show 4 more
QtyPartRefs
10
10k
R4, R5, R6, R7, R8, R9, R12, R14 +2
1
1K
R10
1
100
R11
1
47k
R13

MainFlightComputer design files

The KiCad project lives in the RockSat-X/RSXVT2026 repository on GitHub; these links point at the commit this page was built from.

MainFlightComputer: common questions

What microcontroller does the MainFlightComputer use?

The MainFlightComputer is built around the STM32H533VET6, from the STM32 family.

How big is the MainFlightComputer PCB?

The MainFlightComputer measures 66 × 60 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the MainFlightComputer?

55 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the MainFlightComputer design files?

From the RockSat-X/RSXVT2026 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MainFlightComputer design in my own project?

Yes, under the terms of its MIT license, which RockSat-X chose for the repository.

Can I test firmware for the MainFlightComputer 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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