HardLabs

OBC v1

Migsster·StormSat-CubeSat·hardware/OBC/OBC_v1.kicad_pcb

OBC v1 PCB layout, top view — open source ESP32 board by Migsster

About the OBC v1 PCB

OBC v1 is an open source ESP32 PCB design by Migsster, published on GitHub. It is a 2-layer board measuring 85 × 85 mm, with 6 components from 6 distinct parts.

Its main chip is the ESP32-CAM, from the ESP32 family. Other key parts include the YAAJ_WeAct_BlackPill_Part_Like_SWD_Breakout. By type, the board carries 2 ICs and 1 connector.

It belongs with the rf & radio, sensors and science & space designs in this gallery.

From the project

1U CubeSat avionics prototype with custom OBC/EPS/Payload PCBs, STM32 embedded firmware, LoRa TT&C, GNSS and Python mission analysis.

STM32F411 · 3 custom PCBs · Embedded C · SPI/I²C/UART · LoRa TT&C · GNSS · IMU · FATFS · ESP32-CAM · Python

StormSat was my final-year Aerospace Engineering team project: a functional 1U CubeSat engineering prototype built around three custom PCBs — OBC, EPS and Payload — with onboard sensing, navigation, data logging, imaging, LoRa telemetry/telecommand and ground-side mission analysis.

OBC v1, from the project README
From the project README

Main components on the OBC v1

YAAJ_WeAct_BlackPill_Part_Like_SWD_BreakoutESP32-CAM

OBC v1 bill of materials (BOM)

6 components, 6 distinct parts.

QtyPartRefs
1
YAAJ_WeAct_BlackPill_Part_Like_SWD_Breakout
U1
1
ESP32-CAM
U2
1
Conn_02x20_Odd_Even
J1
1
Conn_01x04_Pin
debugger1
1
~
sdcard_module1
1
Conn_01x03_Pin
serial_com1

OBC v1 design files

The KiCad project lives in the Migsster/StormSat-CubeSat 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 ESP32-CAM, from the ESP32 family.

How big is the OBC v1 PCB?

The OBC v1 measures 85 × 85 mm, has 2 copper layers and is 1.600198 mm thick.

How many components are on the OBC v1?

6 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the OBC v1 design files?

From the Migsster/StormSat-CubeSat repository on GitHub, which has the KiCad layout and the schematic; 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 Migsster. 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 ESP32 firmware against it before you order a PCB.

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