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Elec Poulpe 2d

pollen-robotics·elec_Poulpe_2d

Elec Poulpe 2d PCB layout, top view — open source STM32 board by pollen-robotics
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About the Elec Poulpe 2d PCB

Elec Poulpe 2d is an open source STM32 PCB design by pollen-robotics, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 59 × 73 mm, with 194 components from 49 distinct parts.

Its main chip is the STM32H742/3VxTx, from the STM32 family. Other key parts include the LAN9252, 24LC32, BMI088, TMC4671 and MAX3280E. By type, the board carries 87 capacitors, 56 resistors, 16 connectors, 14 ICs, 13 diodes and 4 inductors.

From the project

Dual Motor Control Board for Reachy 2

"Poulpe2d" is build from "Poulpe" as it aims on driving Orbita 2 Dofs. It is paireds with boards "Ventouse2d" that drive 2 BLDC Motors.

Elec Poulpe 2d, from the project README
From the project README

Main components on the Elec Poulpe 2d

LAN925224LC32BMI088STM32H742/3VxTxTMC4671MAX3280ELTC4332

Elec Poulpe 2d bill of materials (BOM)

194 components, 49 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LAN9252
U1
1
24LC32
U2
1
BMI088
U3
1
STM32H742/3VxTx
U4
2
TMC4671
U5, U7
6
MAX3280E
U6, U8, U11, U12, U13, U14
2
LTC4332
U9, U10
3
25MHz
X1, X2, X3
2
Pico5
J1, J2
1
Pico4
J5
1
DNP - pico3
J6
1
Pico6
J7
2
SlimStack Receptacle
J8, J12
2
Pico 2
J9, J13
1
Pico 2
J10
2
pico6
J11, J14
2
Pico8
J15, J19
2
Trinamic_RTMI
J16, J20
1
PT61020EL
TR1
6
Green
D1, D4, D5, D6, D8, D12
Show 29 more
QtyPartRefs
2
Yellow
D2, D3
1
Red
D7
4
Dual TVS Diode
D9, D10, D11, D13
4
FB
L1, L2, L3, L4
56
100n 6V3
C1, C2, C3, C4, C5, C10, C11, C12 +48
2
22n 50V
C6, C7
2
1000pF 2kV
C8, C9
3
10u 6V3
C15, C16, C17
1
470p 6V3
C18
1
10n 6V3
C23
2
4.7uF 6V3
C26, C72
2
1uF 6V3
C27, C73
2
2.2u 6V3
C29, C30
4
4.7u 6V3
C52, C53, C69, C70
2
470n 6V3
C54, C71
10
100p
C76, C77, C78, C79, C80, C81, C82, C83 +2
8
49R9
R1, R2, R3, R4, R7, R8, R9, R10
6
10k
R5, R16, R18, R31, R36, R40
1
12.1k - 1%
R6
2
3k3
R11, R12
2
75R
R13, R14
5
1k
R15, R17, R19, R35, R39
5
4k7
R24, R25, R26, R37, R41
4
620R
R27, R28, R45, R47
2
120R
R29, R44
3
100k
R30, R34, R38
2
470R
R32, R33
2
1K
R42, R43
14
0R
R46, R49, R50, R51, R52, R53, R54, R55 +6

Elec Poulpe 2d design files

The KiCad project lives in the pollen-robotics/elec_Poulpe_2d repository on GitHub; these links point at the commit this page was built from.

Elec Poulpe 2d: common questions

What microcontroller does the Elec Poulpe 2d use?

The Elec Poulpe 2d is built around the STM32H742/3VxTx, from the STM32 family.

How big is the Elec Poulpe 2d PCB?

The Elec Poulpe 2d measures 59 × 73 mm, has 4 copper layers and is 1.566 mm thick.

How many components are on the Elec Poulpe 2d?

194 components, from 49 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 Elec Poulpe 2d design files?

From the pollen-robotics/elec_Poulpe_2d 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 Elec Poulpe 2d design in my own project?

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

Can I test firmware for the Elec Poulpe 2d 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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