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Tafiti Onboard Comms

geraldombuthia·Nanosat-communication-system·COMMS/Onboard Terminal/Tafiti Onboard Comms/Tafiti Onboard Comms.kicad_pcb

Tafiti Onboard Comms PCB layout, top view — open source STM32 board by geraldombuthia

About the Tafiti Onboard Comms PCB

Tafiti Onboard Comms is an open source STM32 PCB design by geraldombuthia, published on GitHub. It is a 4-layer board measuring 90.2 × 96 mm, with 44 components from 24 distinct parts.

Its main chip is the STM32H743VIT6, from the STM32 family. Other key parts include the Ai-Thinker-Ra-02. By type, the board carries 21 capacitors, 10 resistors, 3 ICs, 3 connectors, 2 crystals and 2 switches.

It belongs with the iot & wireless designs in this gallery.

From the project

This is a communication system that I designed for a nanosatellite model. It involves an onboard communication system and a ground communication system. The main microcontroller used is an STM32H743 board and the communication protocols include UART, SPI, CAN and USB. Data storage using a microsd and wireless communication included

This is the PCB design of the Onboard communication system.

Main components on the Tafiti Onboard Comms

STM32H743VIT6Ai-Thinker-Ra-02

Tafiti Onboard Comms bill of materials (BOM)

44 components, 24 distinct parts.

QtyPartRefs
1
STM32H743VIT6
U1
2
Ai-Thinker-Ra-02
U2, U3
1
32.768KHz
Y1
1
16MHz
Y2
1
Micro_SD_Card_Det
J1
1
Conn_01x08_Male
J2
1
Conn_02x40_Top_Bottom
J3
1
SW_SPDT
SW1
1
SW_Push
SW2
2
LED
D1, D2
1
120R
FB1
2
22uF/16V
C1, C3
2
0.1uF
C2, C4
1
4.7u
C5
2
15p
C6, C9
2
10p
C7, C12
7
100n
C10, C14, C15, C16, C17, C18, C21
1
2.2uF
C11
1
2.2uF
C13
1
10n
C19
Show 4 more
QtyPartRefs
2
1u
C20, C22
2
1k
R1, R9
2
10k
R2, R10
6
47k
R3, R4, R5, R6, R7, R8

Tafiti Onboard Comms design files

The KiCad project lives in the geraldombuthia/Nanosat-communication-system repository on GitHub; these links point at the commit this page was built from.

Tafiti Onboard Comms: common questions

What microcontroller does the Tafiti Onboard Comms use?

The Tafiti Onboard Comms is built around the STM32H743VIT6, from the STM32 family.

How big is the Tafiti Onboard Comms PCB?

The Tafiti Onboard Comms measures 90.2 × 96 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Tafiti Onboard Comms?

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

Where can I download the Tafiti Onboard Comms design files?

From the geraldombuthia/Nanosat-communication-system repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Tafiti Onboard Comms design in my own project?

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

Can I test firmware for the Tafiti Onboard Comms 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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