HardLabs

Shoulder

kristblo·TTK4900_Masteroppgave·PCBs/shoulder/shoulder.kicad_pcb

Shoulder PCB layout, top view — open source STM32 board by kristblo

About the Shoulder PCB

Shoulder is an open source STM32 PCB design by kristblo, published on GitHub. It is a 4-layer board measuring 88 × 88 mm, with 85 components from 47 distinct parts.

Its main chip is the STM32F303RETx, from the STM32 family. Other key parts include the LSM6DSMTR, TJA1057GT/3J and LM317_TO-220. By type, the board carries 23 resistors, 22 capacitors, 8 diodes, 5 ICs, 3 connectors and 2 jumpers.

From the project

Masteroppgave v24

Main components on the Shoulder

STM32F303RETxLSM6DSMTRTJA1057GT/3JLM317_TO-220

Shoulder bill of materials (BOM)

85 components, 47 distinct parts.

QtyPartRefs
1
STM32F303RETx
U1
1
LSM6DSMTR
U2
1
TJA1057GT/3J
U3
2
LM317_TO-220
U4, U5
1
Q_NIGBT_CGE
Q1_RLY_CTRL1
1
USB_B_Micro
J1
1
Conn_01x07
J2
1
Conn_01x03
J3
1
BOOTMODE
BOOT1
1
120Ohm
CAN_TRM1
1
USBLC6-2P6
CR1
1
330muF
C_MTR1
1
220muF
C_MTR2
2
Conn_02x05_Odd_Even
ENC1, ENC2
2
Jumper_2_Open
JP1, JP2
1
RELAY
JV-3S-KT1
2
705430001
MTR1, MTR2
2
DRV8251ADDAR
MTR_DRV1, MTR_DRV2
2
Conn_01x04
PWR_CAN_IN1, PWR_CAN_OUT1
1
Conn_01x03
RLY_CTL_DBG1
Show 27 more
QtyPartRefs
1
0,386k
RV1
1
0,706k
RV2
1
Conn_01x05
SRL_FLASH1
1
RESET
SW1
1
Conn_01x02
UART1
1
ABL-16.000MHZ-B2
XTAL1
4
IN4005
D1, D2, D3, D4
1
LED_3V3
D5
1
LED_5V
D6
1
LED
D7
1
D_Zener
D8
13
100nF
C1, C2, C3, C4, C5, C8, C9, C14 +5
2
20pF
C6, C7
4
10muF
C10, C11, C12, C13
1
4.7muF
C16
1
1muF
C17
1
10nF
C18
1
82k
R1
2
510Ohm
R1_IPROPI1, R2_IPROPI1
1
33k
R2
1
1k5
R3
2
10k
R4, R5
1
340Ohm
R6
1
10kOhm
R7
2
240Ohm
R8, R9
2
1k5
R10, R11
10
40kOhm
R12, R13, R14, R15, R16, R17, R18, R19 +2

Shoulder design files

The KiCad project lives in the kristblo/TTK4900_Masteroppgave repository on GitHub; these links point at the commit this page was built from.

Shoulder: common questions

What microcontroller does the Shoulder use?

The Shoulder is built around the STM32F303RETx, from the STM32 family.

How big is the Shoulder PCB?

The Shoulder measures 88 × 88 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Shoulder?

85 components, from 47 distinct parts. The full bill of materials is listed on this page.

Where can I download the Shoulder design files?

From the kristblo/TTK4900_Masteroppgave repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Shoulder design in my own project?

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

Can I test firmware for the Shoulder 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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