HardLabs

Hellen1-mcu

rusefi·hellen-miata-NB2·kicad6_old/hellen1-mcu.kicad_pcb

Hellen1-mcu PCB layout, top view — open source STM32 board by rusefi

About the Hellen1-mcu PCB

Hellen1-mcu is an open source STM32 PCB design by rusefi, published on GitHub. It is a 2-layer board measuring 46.5 × 37.4 mm, with 92 components from 31 distinct parts.

Its main chip is the STM32F407IGT6, from the STM32 family. Other key parts include the AMS1117-3.3, MCP6004, AP2331W-7 and XC6206P332MR. By type, the board carries 38 capacitors, 31 resistors, 10 ICs, 7 diodes, 2 crystals and 2 connectors.

From the project

a rusEFI board with a 72 pin connector. Works for a Mazda Miata NB2 or any generic 8 cylinder vehicle :)

a rusEFI board with a 72 pin connector. Works for a Mazda Miata NB2 or any generic 8 cylinder vehicle :)

We love https://github.com/thesourcerer8/altium2kicad

https://github.com/rusefi/rusefi/wiki/Mazda-Miata-2001

https://github.com/rusefi/rusefi/wiki/Mazda-Miata-2003

For photos see https://github.com/rusefi/rusefi/wiki/Hellen-NB2

M4 x 10mm will be good for NB external case and internal board to case for both NA and NB.

Main components on the Hellen1-mcu

AMS1117-3.3MCP6004AP2331W-7STM32F407IGT6XC6206P332MR

Hellen1-mcu bill of materials (BOM)

92 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
U101
6
MCP6004
LMV324IPWR
U102, U104, U106, U107, U108, U109
1
AP2331W-7
AP2337SA-7
U103
1
STM32F407IGT6
STM32F427IGT6
U105
1
XC6206P332MR
U111
1
Module:mcu/0.3
M101
1
C99009
32.768 kHz
Y101
1
C112566
8.0 MHz
Y102
1
TC2030-IDC-NL
J101
1
Net Tie
J102
2
B5819W
D101, D107
1
SRV05-4-P-T7
D102
1
LED-RED-0603
D103
1
LED-GREEN-0603
D104
1
LED-BLUE-0603
D105
1
LED-YELLOW-0603
D106
1
SDFL2012Q3R3KTF
L101
26
100N
100n
C101, C105, C106, C107, C108, C109, C110, C111 +18
6
4.7U
4.7u
C102, C103, C104, C137, C138, C140
2
2.2U
2.2u
C114, C131
Show 11 more
QtyPartRefs
2
12P
12p
C115, C116
2
18P
18p
C132, C136
13
4.7K
4.7k
R101, R107, R108, R109, R110, R111, R112, R113 +5
4
10K
10k
R102, R121, R127, R128
2
10k
R103, R105
2
100
R104, R106
1
47
R114
4
510
R116, R119, R120, R124
2
2.2K
2.2k
R122, R123
2
10K
10k
R129, R130
1
0
R131

Hellen1-mcu design files

The KiCad project lives in the rusefi/hellen-miata-NB2 repository on GitHub; these links point at the commit this page was built from.

Hellen1-mcu: common questions

What microcontroller does the Hellen1-mcu use?

The Hellen1-mcu is built around the STM32F407IGT6, from the STM32 family.

How big is the Hellen1-mcu PCB?

The Hellen1-mcu measures 46.5 × 37.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hellen1-mcu?

92 components, from 31 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 Hellen1-mcu design files?

From the rusefi/hellen-miata-NB2 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 Hellen1-mcu design in my own project?

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

Can I test firmware for the Hellen1-mcu 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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