HardLabs

MotorCAN

chairlesengi·MotorCAN·MotorCAN/MotorCAN.kicad_pcb

MotorCAN PCB layout, top view — open source STM32 board by chairlesengi

About the MotorCAN PCB

MotorCAN is an open source STM32 PCB design by chairlesengi, published on GitHub under the MIT license. It is a 4-layer board measuring 60 × 60 mm, with 65 components from 31 distinct parts.

Its main chip is the STM32G431CBT6, from the STM32 family. Other key parts include the DRV8316CRRGFR, SN65HVD230DR and MT6816CT-AKD-R. By type, the board carries 29 capacitors, 14 resistors, 8 connectors, 4 ICs, 3 modules and 3 diodes.

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

From the project

CANBus based FOC motor driver board designed for drone gimbal motors

Features: - STM32G431 processor core for SimpleFOC software and CAN communication - 3.3V CAN communication for easy logic level support - Runs on 20-26V DC - Integrated magnetic absolute encoder (MT6816CT) - Handles up to ~3A of motor current

This driver is designed to be a fully integrated solution that mounts to the back of a gimbal motor with a diametrically magnetized magnet. For that reason, it includes an absoulute magnetic encoder and leverages the current sensing capabilities of the DRV8316C driver to maintain a continous measurement of the position of the rotor of the motor and its…

Main components on the MotorCAN

STM32G431CBT6DRV8316CRRGFRSN65HVD230DRMT6816CT-AKD-R

MotorCAN bill of materials (BOM)

65 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32G431CBT6
ST(意法半导体)
U1
1
DRV8316CRRGFR
TI(德州仪器)
U2
1
SN65HVD230DR
TI(德州仪器)
U3
1
MT6816CT-AKD-R
MagnTek(麦歌恩)
U4
1
A
M1
1
B
M2
1
C
M3
1
2N7002
Q1
1
XL7EL89CKI-111YLC-24M
YXC(扬兴晶振)
X1
4
ZX-SH1.0-3PWT
Megastar(兆星)
CN1, CN4, CN5, CN6
2
WAFER-GH1.25-4PWB
XUNPU(讯普)
CN2, CN3
1
PWR IN
J2
1
PWR OUT
J3
1
4.7V Zener
D1
1
PESD2CANFD24V-K
PAKER(派克微)
D2
1
26V
D3
1
600@100MHz
FB1
1
47UH
47uH
L1
2
10PF
10pF
C1, C2
10
10UF
10uF
C3, C4, C5, C6, C7, C8, C9, C10 +2
Show 11 more
QtyPartRefs
8
100NF
100nF
C13, C16, C20, C21, C22, C23, C27, C28
3
1UF
1uF
C14, C24, C25
1
47NF
47nF
C15
3
1NF
1nF
C17, C18, C19
1
22UF
22uF
C26
1
100UF
100uF
C29
1
120
R1
3
100K
100k
R2, R7, R12
1
22K
22k
R3
4
100
R4, R5, R6, R8
5
10K
10k
R9, R10, R11, R13, R14

MotorCAN design files

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

MotorCAN: common questions

What microcontroller does the MotorCAN use?

The MotorCAN is built around the STM32G431CBT6, from the STM32 family.

How big is the MotorCAN PCB?

The MotorCAN measures 60 × 60 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the MotorCAN?

65 components, from 31 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 MotorCAN design files?

From the chairlesengi/MotorCAN 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 MotorCAN design in my own project?

Yes, under the terms of its MIT license, which chairlesengi chose for the repository.

Can I test firmware for the MotorCAN 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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