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Servo dev board

OpenServoCore·open-servo-core·hardware/boards/servo-dev-board-stm32f301/servo-dev-board.kicad_pcb

Servo dev board layout, top view — open source STM32 board by OpenServoCore
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About the Servo dev board

Servo dev board is an open source STM32 PCB design by OpenServoCore, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 51.5 × 26.5 mm, with 35 components from 20 distinct parts.

Its main chip is the STM32F301K8UX, from the STM32 family. Other key parts include the SSP7615-33DFR and DRV8231ADSG. By type, the board carries 11 capacitors, 7 resistors, 5 connectors, 3 ICs, 2 switches and 1 crystal.

It belongs with the robotics & motion and dev boards & breakouts designs in this gallery.

From the project

The goal of this project is to create an open servo controller board and firmware.

Projects link to shared libraries via sym-lib-table and fp-lib-table:

- Symbol library: ${KIPRJMOD}/../../shared.kicadsym - Footprint library: ${KIPRJMOD}/../../shared.pretty`

Symbols in shared.kicadsym` reference footprints using library prefix:

- Format: "shared:FOOTPRINTNAME" - Example: "shared:UQFN-20L3.0-W3.0-P0.40-BL-EP1.7"

Footprints in shared.pretty/ reference 3D models using relative paths:

Main components on the Servo dev board

SSP7615-33DFRSTM32F301K8UXDRV8231ADSG

Servo dev board bill of materials (BOM)

35 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SSP7615-33DFR
U2
1
STM32F301K8UX
STM32F301K8Ux
U3
1
DRV8231ADSG
U4
1
C13738
16MHz 9pF
Y1
1
C428495
USB_B_Micro
J1
1
CONN_01X05_MOUNTINGPIN
Conn_01x05_MountingPin
J2
2
CONN_01X04_MOUNTINGPIN
Conn_01x04_MountingPin
J3, J4
1
CONN_02X05_ODD_EVEN
Conn_02x05_Odd_Even
J5
2
12PF
12pF
CL1, CL2
2
CONN_01X08_PIN
Conn_01x08_Pin
H1, H2
2
SW_Push
SW1, SW2
1
C2286
RED
LED1
1
C76883
1kΩ@100Mhz
L1
5
0.1UF
0.1uF
C1, C2, C3, C6, C7
3
1UF
1uF
C4, C5, C10
1
4.7UF
4.7uF
C8
1
10NF
10nF
C9
1
22UF
22uF
C11
6
4K7
R1, R2, R3, R4, R5, R6
1
1K5
R7

Servo dev board design files

The KiCad project lives in the OpenServoCore/open-servo-core repository on GitHub; these links point at the commit this page was built from.

Servo dev board: common questions

What microcontroller does the Servo dev board use?

The Servo dev board is built around the STM32F301K8UX, from the STM32 family.

How big is the Servo dev board?

The Servo dev board measures 51.5 × 26.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Servo dev board?

35 components, from 20 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Servo dev board design files?

From the OpenServoCore/open-servo-core repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Servo dev board design in my own project?

Yes, under the terms of its Apache-2.0 license, which OpenServoCore chose for the repository.

Can I test firmware for the Servo dev board 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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