HardLabs

Obc v1

harmalkar·satellite-prototype·obc-v1/obc-v1.kicad_pcb

Obc v1 PCB layout, top view — open source STM32 board by harmalkar

About the Obc v1 PCB

Obc v1 is an open source STM32 PCB design by harmalkar, published on GitHub. It is a 4-layer board measuring 61 × 45.1 mm, with 29 components from 21 distinct parts.

Its main chip is the STM32L041F6Px, from the STM32 family. Other key parts include the W25Q32JVSS, AP1117-33, MS5607-02BA and LSM6DS3. By type, the board carries 9 capacitors, 6 resistors, 5 ICs, 4 connectors, 3 diodes and 1 crystal.

It belongs with the sensors and rf & radio designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

Open-source hardware and software for a satellite with a custom on-board computer to interface over I2C, SPI, and UART with a flash chip, IMU, barometer, camera, and thermal sensors. Built to fit within a 1U form factor.

Main components on the Obc v1

W25Q32JVSSSTM32L041F6PxAP1117-33MS5607-02BALSM6DS3

Obc v1 bill of materials (BOM)

29 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
W25Q32JVSS
U1
1
STM32L041F6Px
U2
1
AP1117-33
U3
1
MS5607-02BA
U4
1
LSM6DS3
U5
1
ASE-xxxMHz
X1
1
Conn_01x03
J1
1
Conn_01x04
J2
1
Conn_01x08
J3
1
Screw_Terminal_01x02
J4
1
SW_Push
SW1
1
Red
D1
1
Green
D2
1
Blue
D3
2
10u
C1, C5
6
100n
C2, C3, C4, C7, C8, C9
1
100u
C6
1
10k
R1
2
220
R2, R3
1
60
R4
Show 1 more
QtyPartRefs
2
4.7k
R5, R6

Obc v1 design files

The KiCad project lives in the harmalkar/satellite-prototype repository on GitHub; these links point at the commit this page was built from.

Obc v1: common questions

What microcontroller does the Obc v1 use?

The Obc v1 is built around the STM32L041F6Px, from the STM32 family.

How big is the Obc v1 PCB?

The Obc v1 measures 61 × 45.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Obc v1?

29 components, from 21 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 Obc v1 design files?

From the harmalkar/satellite-prototype repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Obc v1 design in my own project?

The repository has no license, so all rights stay with harmalkar. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Obc v1 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.

More boards in satellite-prototype

Earlier revisions in the repo: obc

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