HardLabs

E nez

gberthou·e-nez·board/e-nez.kicad_pcb

E nez PCB layout, top view — open source STM32 board by gberthou

About the E nez PCB

E nez is an open source STM32 PCB design by gberthou, published on GitHub under the MIT license. It is a 4-layer board measuring 54.8 × 83.5 mm, with 104 components from 54 distinct parts.

Its main chip is the STM32C071CBT7, from the STM32 family. Other key parts include the LTC3440EMS#PBF, TCR2EF50,LM(CT, AD5270BRMZ-50, ADG1604BRUZ and OPA4387PWR. By type, the board carries 41 resistors, 39 capacitors, 14 ICs, 4 connectors, 3 diodes and 1 crystal.

From the project

Data acquisition platform | e-nez

Main components on the E nez

LTC3440EMS#PBFTCR2EF50,LM(CTAD5270BRMZ-50ADG1604BRUZSTM32C071CBT7OPA4387PWRPCM1863QDBTRQ1OPA2387DRMPX5050GPMCP1725-3302E/SNTLV9062IDR

E nez bill of materials (BOM)

104 components, 54 distinct parts.

QtyPartRefs
1
LTC3440EMS#PBF
IC1
1
TCR2EF50,LM(CT
TCR2EF50,LM_CT
IC2
1
AD5270BRMZ-50
IC3
3
ADG1604BRUZ
IC4, IC6, IC7
1
STM32C071CBT7
U1
1
OPA4387PWR
U2
1
PCM1863QDBTRQ1
U3
2
OPA2387DR
U4, U8
1
MPX5050GP
U5
1
MCP1725-3302E/SN
U6
1
TLV9062IDR
U9
1
ABL-12.288MHz-B1U
Y1
1
USB4085-GF-A_REVA4
J1
1
FTSH-105-01-L-D
FTSH-105-01-L-D-007-K
J2
1
UART
J3
1
HTST-103-04-F-D-RA
J4
1
L101011MS02Q
S1
2
HLMP-K150
D1, D2
1
BAT54SDW
D3
1
10u
L1
Show 34 more
QtyPartRefs
5
1u
C1, C22, C25, C28, C34
2
10n
C2, C20
1
1u
C3
1
10u
C4
14
100n
C5, C7, C14, C15, C21, C24, C26, C30 +6
2
470p
C6, C36
2
4.7u
C8, C18
2
26p; 08055A270FAT2A
C9, C10
5
10u
C11, C12, C13, C29, C32
1
2.2u
C16
1
22u
C19
2
1n
C23, C27
1
100n
C31
1
10k
R1
1
20k
R2
3
35k
R3, R13, R21
1
383k
R4
1
117k
R5
2
1.6k
R6, R7
4
100R
R8, R16, R17, R18
4
10k
R9, R14, R33, R40
2
15k
R10, R26
2
60k
R11, R19
1
25k
R12
1
1k
R15
1
30k
R20
1
40k
R22
4
5k
R23, R25, R28, R34
2
5.1k
R24, R29
1
20k
R27
4
33R
R30, R31, R41, R42
1
3.3k
R35
2
4.7k
R36, R39
2
2k
R37, R38

E nez design files

The KiCad project lives in the gberthou/e-nez repository on GitHub; these links point at the commit this page was built from.

E nez: common questions

What microcontroller does the E nez use?

The E nez is built around the STM32C071CBT7, from the STM32 family.

How big is the E nez PCB?

The E nez measures 54.8 × 83.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the E nez?

104 components, from 54 distinct parts. The full bill of materials is listed on this page.

Where can I download the E nez design files?

From the gberthou/e-nez repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the E nez design in my own project?

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

Can I test firmware for the E nez 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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