HardLabs

Net bmp

elagil·net-bmp·hardware/net-bmp/net-bmp.kicad_pcb

Net bmp PCB layout, top view — open source STM32 board by elagil

About the Net bmp PCB

Net bmp is an open source STM32 PCB design by elagil, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 33.5 × 66.8 mm, with 94 components from 34 distinct parts.

Its main chip is the C28730, from the STM32 family. Other key parts include the C730237, C621425, C7519, C6186 and C546283. By type, the board carries 35 resistors, 34 capacitors, 9 ICs, 6 connectors, 4 diodes and 2 transistors.

It belongs with the usb & debug tools designs in this gallery.

From the project

An Ethernet-connected SWD/JTAG debug adapter (blackmagic probe)

An Ethernet-connected SWD/JTAG debug adapter, based on the blackmagic probe.

Net bmp, from the project README
From the project README

Main components on the Net bmp

C28730C730237C621425C7519C6186C546283

Net bmp bill of materials (BOM)

94 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C28730
STM32F407VETx
U1
4
C730237
74LVC2T45DC
U2, U3, U4, U5
1
C621425
LAN8742A
U6
1
C7519
USBLC6-2SC6
U7
1
C6186
AMS1117-3.3
U8
1
C546283
74AVC9112
U9
2
C2759893
DMG1024UV-7
Q1, Q2
1
C254223
SG-5032CCN
X2
1
~
DBG
J1
1
~
Micro SD
J2
1
C963413
USB_C_Receptacle_USB2.0
J4
1
~
TGT
J5
1
C2972785
BMDU
J6
1
C12074
HR911105A
J7
1
C318884
SW_SPST
SW1
1
C72041
Blue
D1
1
C72043
Green
D2
1
C72038
Yellow
D3
1
C2286
Red
D4
2
C1002
FerriteBead
FB1, FB2
Show 14 more
QtyPartRefs
23
C1525
100n
C1, C2, C3, C4, C5, C6, C7, C8 +15
2
C23630
2.2u
C9, C10
1
C1523
1n
C19
1
C52923
1u
C20
5
C19702
10u
C26, C28, C29, C30, C31
1
C1532
22n
C27
1
C15195
10n
C34
12
C25744
10k
R1, R2, R7, R14, R15, R16, R17, R18 +4
6
C25104
330
R3, R4, R5, R6, R27, R28
8
C25105
33
R8, R9, R10, R11, R12, R13, R29, R30
1
C25867
1.5k
R20
1
C25752
12k
R22
4
C25120
49.9
R23, R24, R25, R26
3
C25905
5.1k
R33, R34, R36

Net bmp design files

The KiCad project lives in the elagil/net-bmp repository on GitHub; these links point at the commit this page was built from.

Net bmp: common questions

What microcontroller does the Net bmp use?

The Net bmp is built around the C28730, from the STM32 family.

How big is the Net bmp PCB?

The Net bmp measures 33.5 × 66.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Net bmp?

94 components, from 34 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 Net bmp design files?

From the elagil/net-bmp 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 Net bmp design in my own project?

Yes, under the terms of its GPL-3.0 license, which elagil chose for the repository.

Can I test firmware for the Net bmp 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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