HardLabs

FOME Open Source Wideband O2 Module

mck1117·wideband·hardware/board_module/wideband_controller.kicad_pcb

FOME Open Source Wideband O2 Module layout, top view — open source STM32 board by mck1117

About the FOME Open Source Wideband O2 Module

FOME Open Source Wideband O2 Module is an open source STM32 PCB design by mck1117, published on GitHub under the MIT license. It is a 4-layer board measuring 29 × 20.9 mm, with 59 components from 31 distinct parts.

Its main chip is the STM32F042K6TX, from the STM32 family. Other key parts include the MCP6004, REF3033, AD8628 and XC6206P332MR. By type, the board carries 31 resistors, 16 capacitors, 5 ICs, 4 diodes, 2 connectors and 1 transistor.

From the project

Wideband O2 sensor controller on a postage stamp. Contains all the analog and digital control logic to handle a Bosch LSU 4.2, 4.9, or ADV sensor.

Wideband O2 sensor controller on a postage stamp. Contains all the analog and digital control logic to handle a Bosch LSU 4.2, 4.9, or ADV sensor.

Intended to either be mounted on an ECU as a module, or on boardcarrier` to run standalone.

Stacks under boardmodule`, has 5v regulator, CAN tranceiver, etc so that the module can exist standlone.

Main components on the FOME Open Source Wideband O2 Module

MCP6004STM32F042K6TXREF3033AD8628XC6206P332MR

FOME Open Source Wideband O2 Module bill of materials (BOM)

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

QtyPartRefs
1
MCP6004
U1
1
STM32F042K6TX
STM32F042K6Tx
U2
1
REF3033
U3
1
AD8628
U5
1
XC6206P332MR
U9
1
BTS3028
VND14NV04
Q1
2
Conn_01x08
J1, J3
2
C2286
RED
D1, D4
1
C72043
GREEN
D2
1
C72041
BLUE
D3
5
1u
C1, C4, C6, C7, C17
8
100N
100n
C2, C5, C8, C9, C11, C12, C13, C14
1
33N
33n
C3
1
4.7U
4.7u
C10
1
100n
C16
2
10K
1k
R1, R2
7
10K
10k
R3, R4, R11, R12, R29, R33, R34
2
27K
27k
R5, R7
1
22K
22k
R6
1
47
R8
Show 11 more
QtyPartRefs
1
10
R9
1
61.9
R10
6
1k
R13, R18, R25, R26, R27, R30
1
20K
62k
R14
2
100K
100k
R15, R17
1
20K
6.8k
R16
1
47k
R19
1
100k
R20
1
10k
R21
1
3.3K
3.3k
R24
2
68K
68k
R31, R32

FOME Open Source Wideband O2 Module design files

The KiCad project lives in the mck1117/wideband repository on GitHub; these links point at the commit this page was built from.

FOME Open Source Wideband O2 Module: common questions

What microcontroller does the FOME Open Source Wideband O2 Module use?

The FOME Open Source Wideband O2 Module is built around the STM32F042K6TX, from the STM32 family.

How big is the FOME Open Source Wideband O2 Module?

The FOME Open Source Wideband O2 Module measures 29 × 20.9 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the FOME Open Source Wideband O2 Module?

59 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 FOME Open Source Wideband O2 Module design files?

From the mck1117/wideband 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 FOME Open Source Wideband O2 Module design in my own project?

Yes, under the terms of its MIT license, which mck1117 chose for the repository.

Can I test firmware for the FOME Open Source Wideband O2 Module 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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