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Actuator board

cvra·actuator-board

Actuator board layout, top view — open source STM32 board by cvra

About the Actuator board

Actuator board is an open source STM32 PCB design by cvra, published on GitHub under the Custom license license. It is a 4-layer board measuring 22 × 40 mm, with 52 components from 27 distinct parts.

Its main chip is the STM32F302K8U6, from the STM32 family. Other key parts include the MCP1703, MAX3051, MPRLS0015PA0000SA and DRV8847_TSSOP. By type, the board carries 20 capacitors, 10 connectors, 9 resistors, 6 ICs, 6 diodes and 1 crystal.

It belongs with the robotics & motion and sensors designs in this gallery.

From the project

PCB for controlling our robot's RC servo and vacuum pump actuators including sensor feedback.

- STM32F302K8U6 (64K Flash, 16K RAM) - IOs - 1 Digital input - 2 Analog input - 2 Servo PWM - 2 motor outputs for vacuum pump - CAN interface with two 4pin Molex PicoBlade for daisy chaining - Debug connector (7pin Molex PicoBlade) - SWD - UART

Generate the Bom in XML format from KiCAD, then:

Actuator board, from the project README
From the project README

Main components on the Actuator board

STM32F302K8U6MCP1703MAX3051MPRLS0015PA0000SADRV8847_TSSOP

Actuator board bill of materials (BOM)

52 components, 27 distinct parts.

QtyPartRefs
1
STM32F302K8U6
U1
1
MCP1703
U2
1
MAX3051
U3
2
MPRLS0015PA0000SA
U4, U5
1
DRV8847_TSSOP
U6
1
16MHz 10ppm
X1
1
SERVO DCDC 5V
J1
1
Conn_01x06
J2
1
Actuator1
J3
1
Actuator2
J4
1
SWD/DEBUG
J5
1
BATTERY
J6
2
CAN
J7, J8
2
Servo
J9, J10
1
LED
D1
1
SBR130S3-7
D2
4
STPS1L40ZFY
D3, D4, D5, D6
4
1uF
C1, C9, C10, C20
9
0.1uF
C2, C4, C5, C8, C11, C12, C14, C16 +1
1
10nF
C3
Show 7 more
QtyPartRefs
2
10pF
C6, C7
2
1nF
C13, C15
1
10uF
C17
1
22uF
C19
1
510
R1
5
10k
R2, R7, R8, R9, R10
3
330
R4, R5, R6

Actuator board design files

The KiCad project lives in the cvra/actuator-board repository on GitHub; these links point at the commit this page was built from.

Actuator board: common questions

What microcontroller does the Actuator board use?

The Actuator board is built around the STM32F302K8U6, from the STM32 family.

How big is the Actuator board?

The Actuator board measures 22 × 40 mm, has 4 copper layers and is 1 mm thick.

How many components are on the Actuator board?

52 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Actuator board design files?

From the cvra/actuator-board repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Actuator board design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the Actuator 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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