HardLabs

OBC&COMMS subsystem

nanosatlab·pocat-hw·pq_obc_comms/pq_obc_comms/pq_obc_comms.kicad_pcb

OBC&COMMS subsystem PCB layout, top view — open source STM32 board by nanosatlab
Simulate this board

About the OBC&COMMS subsystem PCB

OBC&COMMS subsystem is an open source STM32 PCB design by nanosatlab, published on GitHub. It is a 4-layer board measuring 40 × 40 mm, with 65 components from 36 distinct parts.

Its main chip is the STM32L476RGTx, from the STM32 family. Other key parts include the SX1262IMLTRT, BD2232G-GTR and BGS12PL6E6327XTSA1. By type, the board carries 33 capacitors, 7 ICs, 7 resistors, 6 inductors, 5 connectors and 3 crystals.

It belongs with the rf & radio, power & battery and sensors designs in this gallery.

From the project

IEEE PocketQubes

Hardware repository for the IEEE GRSS PocketQube built at the NanoSat Lab (UPC).

It holds the complete electrical and mechanical design of the satellite: KiCad projects for every PCB in the stack, the SolidWorks/STEP assembly of the full spacecraft, the deployment mechanisms, and the ground/mechanical support equipment used to integrate and test it.

This repository contains design data only — there is nothing to build or run. Flight and ground software live elsewhere, as does the PL3 payload hardware (nanosatlab/pocat-rfi-5g).

Main components on the OBC&COMMS subsystem

STM32L476RGTxSX1262IMLTRTBD2232G-GTRBGS12PL6E6327XTSA1

OBC&COMMS subsystem bill of materials (BOM)

65 components, 36 distinct parts.

QtyPartRefs
1
STM32L476RGTx
U1
1
SX1262IMLTRT
U2
4
BD2232G-GTR
U3, U4, U6, U7
1
BGS12PL6E6327XTSA1
U5
1
ECS-120-18-33-JEM-TR3
X1
1
FA-128_32.0000MF20X-K5
X2
1
ABS09-32.768KHZ-7-T
X3
4
Conn_01x10
J1, J2, J3, J4
1
U.FL
J6
1
Silkscreen_Annotation
Annotation1
1
CoaxialSwitch_Testpoint
TP1
2
type="D" model="RBS1LAM40ATR" lib=""
D1, D2
1
47nH
L1
1
2.5nH
L3
1
4.7nH
L4
1
9.1nH
L5
1
15nH
L6
1
15uH
L7
1
47nF
C1
1
47pF
C2
Show 16 more
QtyPartRefs
8
100nF
C3, C18, C32, C33, C34, C35, C36, C42
3
3.3pF
C4, C9, C10
1
5.6pF
C5
2
39pF
C6, C8
1
2.2pF
C7
1
2.4pF
C11
1
1.8pF
C12
6
1uF
C13, C16, C37, C43, C44, C45
2
1nF
C14, C15
1
470nF
C17
1
4.7uF
C31
2
10pF
C38, C39
2
20pF
C40, C41
4
4.7k
R1, R2, R7, R8
2
100R
R3, R4
1
10k
R6

OBC&COMMS subsystem design files

The KiCad project lives in the nanosatlab/pocat-hw repository on GitHub; these links point at the commit this page was built from.

OBC&COMMS subsystem: common questions

What microcontroller does the OBC&COMMS subsystem use?

The OBC&COMMS subsystem is built around the STM32L476RGTx, from the STM32 family.

How big is the OBC&COMMS subsystem PCB?

The OBC&COMMS subsystem measures 40 × 40 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the OBC&COMMS subsystem?

65 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the OBC&COMMS subsystem design files?

From the nanosatlab/pocat-hw 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&COMMS subsystem design in my own project?

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

Can I test firmware for the OBC&COMMS subsystem 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 pocat-hw

Similar boards