HardLabs

Downlink

hpvdt·typhoon_electronics·telemetry/hardware/downlink_board_version2/downlink_board.kicad_pcb

Downlink PCB layout, top view — open source STM32 board by hpvdt

About the Downlink PCB

Downlink is an open source STM32 PCB design by hpvdt, published on GitHub. It is a 2-layer board measuring 65 × 56 mm, with 51 components from 28 distinct parts.

Its main chip is the TPS563208DDCR, from the STM32 family. Other key parts include the AZ1117-3.3, STM32F103C8Tx and nRF24L01. By type, the board carries 16 resistors, 15 capacitors, 5 connectors, 4 ICs, 4 diodes and 3 switches.

From the project

Folder for each of the boards designed for a given project, even if there is only one board for a given project. Once a board is put into manufacture any revisions should go into a new folder/project so that the design data for all boards is easily accessible for troubleshooting

Folder for each of the boards designed for a given project, even if there is only one board for a given project. Once a board is put into manufacture any revisions should go into a new folder/project so that the design data for all boards is easily accessible for troubleshooting without needing to dig through revision history.

The .gitignore file is configured for KiCad projects (as of 2023-12-06).

Main components on the Downlink

AZ1117-3.3TPS563208DDCRSTM32F103C8TxnRF24L01

Downlink bill of materials (BOM)

51 components, 28 distinct parts.

QtyPartRefs
1
AZ1117-3.3
U1
1
TPS563208DDCR
U2
1
STM32F103C8Tx
U3
1
nRF24L01
U4
1
8M
Y1
1
USB_C_Receptacle_USB2.0
J1
1
SCREEN
J2
1
GPIO
J3
1
PROGRAM
J4
1
Conn_ST_STDC14
J6
1
USB_PWR
JP1
1
BOOT0
JP2
1
RPi_{ON}
SW1
1
RPi_{OFF}
SW2
1
MCU_{RST}
SW3
4
LED
D1, D2, D3, D4
1
3u3
L1
3
10u
C1, C2, C14
6
100n
C3, C8, C9, C10, C11, C13
3
22u
C4, C6, C7
Show 8 more
QtyPartRefs
1
100n
C5
1
10n
C12
1
1u
C15
2
5.1k
R1, R2
2
22
R3, R4
6
10k
R5, R7, R9, R13, R14, R16
2
54k9
R6, R15
4
330
R8, R10, R11, R12

Downlink design files

The KiCad project lives in the hpvdt/typhoon_electronics repository on GitHub; these links point at the commit this page was built from.

Downlink: common questions

What microcontroller does the Downlink use?

The Downlink is built around the TPS563208DDCR, from the STM32 family.

How big is the Downlink PCB?

The Downlink measures 65 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Downlink?

51 components, from 28 distinct parts. The full bill of materials is listed on this page.

Where can I download the Downlink design files?

From the hpvdt/typhoon_electronics repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Downlink design in my own project?

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

Can I test firmware for the Downlink 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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