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Hex minidrive

csiz·hex-single-motor-mini-drive·circuits-v0.2/hex-minidrive.kicad_pcb

Hex minidrive PCB layout, top view — open source STM32 board by csiz
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About the Hex minidrive PCB

Hex minidrive is an open source STM32 PCB design by csiz, published on GitHub under the MIT license. It is a 4-layer board measuring 29 × 51 mm, with 94 components from 33 distinct parts.

Its main chip is the C431633, from the STM32 family. Other key parts include the C2969807, C191884, C20416138 and C2058366. By type, the board carries 35 capacitors, 34 resistors, 8 transistors, 6 ICs, 3 inductors and 2 diodes.

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

From the project

FOC driver for a single BLDC motor.

Brushless motor driver for mini gear motors and servos. This driver focuses on fine force control using field oriented control (FOC). The motor can be commanded to move to track position, velocity, and/or force. The driver will maintain the current wave exactly 90 degrees out of phase to the EMF wave for maximum efficieny. Position is tracked via hall sensors, EMF feedback and I2C rotary sensors.

Hex minidrive, from the project README
From the project README

Main components on the Hex minidrive

C431633C2969807C191884C20416138C2058366

Hex minidrive bill of materials (BOM)

94 components, 33 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C431633
~
ST(意法半导体)
U1
1
C2969807
~
ST(意法半导体)
U3
1
C191884
~
TI(德州仪器)
U4
2
C20416138
~
EG(屹晶微)
U5, U6
1
C2058366
~
TI(德州仪器)
U8
4
C315567
~
AOS
Q1, Q3, Q5, Q7
4
C541711
~
AOS
Q2, Q4, Q6, Q8
1
16MHZ
16MHz
YXC(扬兴晶振)
X1
2
C2856796
~
XUNPU(讯普)
FPC2, FPC3
1
C2856803
~
XUNPU(讯普)
FPC4
1
C393939
~
SHOU HAN(首韩)
USB1
1
C965840
~
XINGLIGHT(成兴光)
LED1
1
C8598
~
CJ(江苏长电/长晶)
D1
1
C32677
~
PROTEK
D2
1
15UH
15uH
cjiang(长江微电)
L1
1
10UH
10uH
Sunlord(顺络)
L2
1
300mΩ
Sunlord(顺络)
L3
11
100NF
100nF
YAGEO(国巨)
C1, C2, C13, C24, C25, C26, C27, C501 +3
8
10UF
10uF
SAMSUNG(三星)
C3, C10, C11, C14, C15, C16, C17, C18
2
22UF
22uF
SAMSUNG(三星)
C4, C5
Show 13 more
QtyPartRefs
1
100PF
100pF
SAMSUNG(三星)
C6
4
1UF
1uF
SAMSUNG(三星)
C7, C8, C12, C803
2
10NF
10nF
FH(风华)
C9, C34
2
15PF
15pF
SAMSUNG(三星)
C20, C21
5
1NF
1nF
SAMSUNG(三星)
C30, C101, C201, C301, C401
4
10mΩ
FOJAN(富捷)
R1, R2, R3, R4
6
100kΩ
UNI-ROYAL(厚声)
R5, R17, R103, R203, R303, R403
1
13kΩ
UNI-ROYAL(厚声)
R6
1
49.9Ω
UNI-ROYAL(厚声)
R10
6
5.1kΩ
UNI-ROYAL(厚声)
R11, R12, R104, R204, R304, R404
3
10kΩ
UNI-ROYAL(厚声)
R18, R801, R802
3
1.5kΩ
UNI-ROYAL(厚声)
R21, R22, R23
10
10Ω
UNI-ROYAL(厚声)
R101, R102, R201, R202, R301, R302, R401, R402 +2

Hex minidrive design files

The KiCad project lives in the csiz/hex-single-motor-mini-drive repository on GitHub; these links point at the commit this page was built from.

Hex minidrive: common questions

What microcontroller does the Hex minidrive use?

The Hex minidrive is built around the C431633, from the STM32 family.

How big is the Hex minidrive PCB?

The Hex minidrive measures 29 × 51 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Hex minidrive?

94 components, from 33 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 Hex minidrive design files?

From the csiz/hex-single-motor-mini-drive 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 Hex minidrive design in my own project?

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

Can I test firmware for the Hex minidrive 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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