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Tafiti Ground Comms

tafiti-org·Subsytems·COMMS/Ground Terminal/Tafiti Ground Comms/Tafiti Ground Comms.kicad_pcb

Tafiti Ground Comms PCB layout, top view — open source STM32 board by tafiti-org

About the Tafiti Ground Comms PCB

Tafiti Ground Comms is an open source STM32 PCB design by tafiti-org, published on GitHub under the MIT license. It is a 4-layer board measuring 64.5 × 73.6 mm, with 64 components from 36 distinct parts.

Its main chip is the STM32H743VIT6, from the STM32 family. Other key parts include the AMS1117-3.3, Ai-Thinker-Ra-02 and CP2102N-Axx-xQFN24. By type, the board carries 27 capacitors, 14 resistors, 8 diodes, 5 ICs, 4 connectors and 2 crystals.

It belongs with the rf & radio designs in this gallery.

From the project

All the different subsystems

This is the repo containing contents of the Tafiti Communication System. This system is built under the sponsorship of the Kenya Space Agency.

(The above tasks should be done and marked as done beside the task)

To provide a communication channel to transfer data to and from the Tafiti Nano-satellite. The data to be transferred includes: - Image data - Housekeeping data - Commands

Main components on the Tafiti Ground Comms

STM32H743VIT6AMS1117-3.3Ai-Thinker-Ra-02CP2102N-Axx-xQFN24

Tafiti Ground Comms bill of materials (BOM)

64 components, 36 distinct parts.

QtyPartRefs
1
STM32H743VIT6
U1
1
AMS1117-3.3
U2
2
Ai-Thinker-Ra-02
U3, U4
1
CP2102N-Axx-xQFN24
U5
1
32.768KHz
Y1
1
16MHz
Y2
2
USB_B_Micro
J1, J2
1
Micro_SD_Card_Det
J3
1
Conn_01x08_Male
J4
1
R
1k1
1
SW_SPDT
SW1
1
SW_Push
SW2
4
LED
D1, D4, D7, D8
1
SP0504BAHT
D2
1
SP0503BAHT
D3
1
DIODE
D5
1
SP0502BAHT
D6
1
120R
FB1
2
15p
C1, C4
2
10p
C2, C7
Show 16 more
QtyPartRefs
1
4.7u
C3
7
100n
C5, C9, C10, C11, C12, C13, C17
1
2.2uF
C6
1
2.2uF
C8
2
10u
C14, C18
1
10n
C15
2
1u
C16, C19
2
22uF/16V
C20, C22
2
0.1uF
C21, C23
2
100n
C24, C27
2
4u7
C25, C26
4
1k
R1, R10, R13, R14
2
10k
R2, R3
6
47k
R4, R5, R6, R7, R8, R9
1
22k1
R11
1
47k5
R12

Tafiti Ground Comms design files

The KiCad project lives in the tafiti-org/Subsytems repository on GitHub; these links point at the commit this page was built from.

Tafiti Ground Comms: common questions

What microcontroller does the Tafiti Ground Comms use?

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

How big is the Tafiti Ground Comms PCB?

The Tafiti Ground Comms measures 64.5 × 73.6 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Tafiti Ground Comms?

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

Where can I download the Tafiti Ground Comms design files?

From the tafiti-org/Subsytems 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 Ground Comms design in my own project?

Yes, under the terms of its MIT license, which tafiti-org chose for the repository.

Can I test firmware for the Tafiti Ground 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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