HardLabs

Motor-2

mkramar·dizzyrobot·Schamatic/Motor - 2/motor-2.kicad_pcb

Motor-2 PCB layout, top view — open source STM32 board by mkramar

About the Motor-2 PCB

Motor-2 is an open source STM32 PCB design by mkramar, published on GitHub. It is a 2-layer board measuring 45 × 45 mm, with 64 components from 44 distinct parts.

Its main chip is the STM32F031G6U6, from the STM32 family. Other key parts include the LM2678-3.3V, LM2678-12V, MA700, LM5019 and AUIRS20302. By type, the board carries 15 resistors, 13 capacitors, 11 connectors, 7 transistors, 7 diodes and 6 ICs.

Main components on the Motor-2

LM2678-3.3VLM2678-12VMA700LM5019STM32F031G6U6AUIRS20302

Motor-2 bill of materials (BOM)

64 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM2678-3.3V
MAX17502
U1
1
LM2678-12V
LTC2876
U2
1
MA700
U3
1
LM5019
U4
1
STM32F031G6U6
U5
1
AUIRS20302
U6
3
PSMN3R3-40YS
Q1, Q3, Q5
3
PSMN3R3-40YS
Q2, Q4, Q6
1
NTR5103N
Q7
1
8MhZ
Y1
1
CONN_02X05
J1
3
MOUNT
J2, J4, J5
1
RS485
J3
1
CONN_02X05
+BAT
J6
1
CONN_02X10
MOUNT
J7
1
GND
J9
1
V
J11
1
U
J12
1
W
J13
2
B3U-1000P
SW1, SW2
Show 24 more
QtyPartRefs
3
LED_Small
D1, D2, D7
3
D_Small
D3, D5, D6
1
D
D4
1
15UH
15uH
L1
1
33UH
220uH
L2
4
1uF
C1, C4, C5, C9
1
2uF
C3
1
0.1UF
1uF
C6
2
0.01UF
0.1uF
C7, C8
1
0.01uF
C10
1
4.7uF
C11
1
100UF
3300pF
C12
1
100UF
22uF
C13
1
0.1uF
C14
2
390
R1, R2
4
10
R3, R5, R7, R8
1
10K
10
R4
1
30K
10
R6
1
100K
R9
1
237K
R10
2
10K
R11, R13
1
230K
R12
1
1Ohm
R14
1
10K
390
R15

Motor-2 design files

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

Motor-2: common questions

What microcontroller does the Motor-2 use?

The Motor-2 is built around the STM32F031G6U6, from the STM32 family.

How big is the Motor-2 PCB?

The Motor-2 measures 45 × 45 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Motor-2?

64 components, from 44 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 Motor-2 design files?

From the mkramar/dizzyrobot repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Motor-2 design in my own project?

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

Can I test firmware for the Motor-2 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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