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ΜEFI rev2

Churrosoft·OpenEFI-PCB·µEFI_rev2/µEFI_rev2.kicad_pcb

ΜEFI rev2 PCB layout, top view — open source STM32 board by Churrosoft

About the ΜEFI rev2 PCB

ΜEFI rev2 is an open source STM32 PCB design by Churrosoft, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 99.9 × 99.3 mm, with 151 components from 58 distinct parts.

Its main chip is the MCZ33810EK, from the STM32 family. Other key parts include the SensorsV2, STM32F407VGTx, MIC2940A-3.3WU, MIC2940A-5.0WT and LT4363IMS. By type, the board carries 52 resistors, 39 capacitors, 21 ICs, 14 diodes, 10 transistors and 10 jumpers.

From the project

Coleccion de PCB y planos recomendados para montar una OpenEFI

si quieres usar otra placa basada en Arduino (Uno, Mega,DUE,etc), puedes hacerlo, pero los pcb no te serviran y capaz tengas que modificar ligeramente el codigo y el mapeo de los pines, proximamente agregare mas pcb ademas de mejorar los existentes

This source is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE.

Main components on the ΜEFI rev2

MCZ33810EKSensorsV2STM32F407VGTxMIC2940A-3.3WUMIC2940A-5.0WTLT4363IMS25LCxxxTJA1042T3118TPL7407LAPWRPaP_Driver_v1LM321MAX9926UAEE+

ΜEFI rev2 bill of materials (BOM)

151 components, 58 distinct parts.

QtyPartRefs
1
MCZ33810EK
U1
8
SensorsV2
U2, U8, U9, U10, U11, U12, U13, U14
1
STM32F407VGTx
U3
1
MIC2940A-3.3WU
U4
1
MIC2940A-5.0WT
U5
1
LT4363IMS
U6
1
25LCxxx
U7
1
TJA1042T3118
U15
2
TPL7407LAPWR
U20, U22
1
PaP_Driver_v1
U23
2
LM321
U27, U31
1
MAX9926UAEE+
U36
4
ISL9V5045S3ST
Q1, Q2, Q3, Q4
3
SS8050
Q5, Q8, Q9
3
IRF540N
Q6, Q7, Q10
1
25MHz
Y1
1
USB_B
J1
1
Tag connect
J2
1
36638-0002
J3
5
SolderJumper_2_Open
JP1, JP2, JP3, JP23, JP24
Show 38 more
QtyPartRefs
5
Jumper_NC_Small
JP11, JP15, JP17, JP18, JP19
1
SW_Push
SW1
9
LED
D1, D5, D6, D7, D8, D9, D10, D12 +1
2
1N4148
D2, D3
1
SMAJ58CA
D4
2
DZ2S033X0L
D14, D18
2
15pF
C2, C3
9
100nF
C5, C9, C10, C11, C12, C13, C14, C15 +1
1
1uF
C6
2
2.2uF
C7, C8
1
4.7uF
C16
5
10pF
C18, C19, C20, C21, C22
8
10nF
C23, C24, C25, C26, C27, C28, C29, C30
1
47nF
C33
1
4.7nF
C34
1
0.1uF
C36
2
240pF
C49, C51
6
0.01uF
C52, C53, C54, C55, C56, C57
2
R_Small
R1, R28
3
10k
R2, R108, R109
11
R_Small
R3, R4, R5, R24, R25, R26, R27, R29 +3
2
100R
R6, R7
1
0.02R
R8
4
4.02k
R9, R10, R11, R12
4
36K
R13, R14, R15, R16
1
10K 1/10W
R17
3
10R 1/10W
R18, R20, R33
1
1M 1/10W
R19
1
0.01R
R21
1
57.6K 1/10W
R22
1
4.99K 1/10W
R23
2
1k
R31, R32
10
4.99K 1/2W
R81, R112, R113, R114, R115, R116, R117, R118 +2
1
100k 1/10W +-1%
R82
1
20k 1/10W +-1%
R83
1
3.32k +-1%
R87
1
28.6k +-1%
R92
1
2.2k
R97

ΜEFI rev2 design files

The KiCad project lives in the Churrosoft/OpenEFI-PCB repository on GitHub; these links point at the commit this page was built from.

ΜEFI rev2: common questions

What microcontroller does the ΜEFI rev2 use?

The ΜEFI rev2 is built around the MCZ33810EK, from the STM32 family.

How big is the ΜEFI rev2 PCB?

The ΜEFI rev2 measures 99.9 × 99.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ΜEFI rev2?

151 components, from 58 distinct parts. The full bill of materials is listed on this page.

Where can I download the ΜEFI rev2 design files?

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

Can I use the ΜEFI rev2 design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which Churrosoft chose for the repository.

Can I test firmware for the ΜEFI rev2 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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