4 layers162 × 115 mm
Fome mc
halbritt/fome-mc
FOME-MC integrated single-PCB motorcycle ECU (STM32H753 + 2x STM32F042 WBO)
514 parts1
4 layers160 × 121 mm
Polygonus Universal Base
FOME-Tech/Polygonus-Universal-1125FOME 112-pin Universal ECU
- Size
- 160 × 121 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 139
- Nets
- 199
- Pads
- 719
- Tracks, vias
- 2,207, 1,224
- Pours
- 18
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Apr 2024
- Updated
- 22 Mar 2026
Overview
Polygonus Universal Base is an open-source printed circuit board by FOME-Tech, from the FOME-Tech/Polygonus-Universal-112 repository on GitHub. It is a 4-layer board of 160 × 121 mm with 139 parts on 199 nets, routed with 2,207 tracks and 1,224 vias.
It is built around the TJA1051T/3/1, FGD3040G2-F085 and TLE9201SG, with the MCP6004-E/P, NC7SB3157P6X and 74HC02 among its other parts. Its parts include 37 resistors, 36 capacitors, 21 ICs, 19 connectors and 11 diodes.
Main components
9TJA1051T/3/1
-- CAN Transceivers ROHSNXP SemiconductorsCAN Transceivers
FGD3040G2-F085
TO-252AA-55℃~+175℃@(Tj) 1.3V@1mA 1.85V@15A,4.5V 150W 21nC 4.8us 400V 41A 900ns TO-252AA IGBT Transistors / Modules ROHSonsemiIGBT Transistors / Modules
TLE9201SG
DSO-12-40℃~+125℃ 1 100mΩ 19uA 6A 8V~28V Current sensing/regulation function SPI Yes DSO-12 Brushed DC Motor Drivers ROHSInfineon TechnologiesGate Drivers
MCP6004-E/P
PDIP-14-40℃~+125℃ 1.8V~6V 100uA 1MHz 1pA 1pA 23mA 28nV/√Hz@1kHz 2uV/℃ 4 4.5mV 600V/ms 76dB ESD protection Rail-to-Rail Input, Rail-to-Rail Output PDIP-14 Operational Amplifier ROHSMicrochip TechnologyOperational Amplifier
NC7SB3157P6X
SC-70-6-40℃~+125℃ 1 1.8V~5.5V 15.5pF 15ns 20ns 250MHz 2:1 300ps 4Ω 7pC Glitch-free switching SC-70-6 Analog Switches, Multiplexers ROHSTudiAnalog Switches, Multiplexers74HC02
-- Logic Gates ROHSonsemiLogic Gates
MAX9142ESA+
SOIC-8-40℃~+85℃ 1.5mV 2mV 320nA 81.94dB Push-pull TTL、CMOS SOIC-8 Comparators ROHSAnalog DevicesComparators
SRV05-4
SOT-23-6L-55℃~+150℃ 15V 1pF 4A 5V 5uA 6V 80W ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
NUP2105L
SOT-23-55℃~+150℃ 100nA 2 24V 30pF 32V 350W@8/20us 44V 8A@8/20us Bidirectional IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 TVS SOT-23 ESD and Surge Protection (TVS/ESD) ROHSonsemiESD And Surge Protection (TVS/ESD)
README
README.mdFOME 112-pin Universal ECU Base
NOT COMPATIBLE WITH ANY PNP APPLICATION
This is an open-source ECU base board compatible with Polygonus and Atlas ECU brain modules.
It is intended to be wired-in to a custom wiring harness, or an OEM harness with the connectors cut off and replaced.
Features
Connectivity
- USB-B
- Dual CAN
Inputs
- Dual wideband O2 sensor controllers using open source module (connected internally to CAN bus #2)
- Dual VR crank/cam sensor inputs. VR input 2 uses adjustable threshold, suitable for low tooth count (single tooth cam, etc) applications (LS12 unavailable if used)
- 11x analog voltage inputs (weak pulldown to ground to avoid floating)
- 4x analog temperature inputs (2.7k pullup resistor to 5v)
- 6 digital inputs with integrated 2.7k pullup resistor to 5v. Use for hall cam/crank sensors, switches, etc.
Outputs
- 2x electronic throttle body H-bridge drivers
- 20 lowside outputs (LS1-16), 8 with freewheel diodes (LS9-12 and IGN9-12)
- 8 logic level ignition outputs (IGN1-8)
- 8 ignition "dumb coil" IGBT drivers (IGN1-8, shared function with logic outputs, independent output pins)
- Stepper motor driver for stepper idle (LS9/10 outputs unavailable if used)
Parts
139| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | D_Schottky | Diode_SMD:D_SMA | D2, D3, D4, D5, D6, D7, D8, D9 |
| 8 | FGD3040G2-F085 | Package_TO_SOT_SMD:TO-252-2 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 8 | VNL5090 | Package_TO_SOT_SMD:SOT-223 | U11, U12, U13, U14, U16, U17, U18, U19 |
| 7 | 1u | Capacitor_SMD:C_0402_1005Metric | C10, C13, C17, C18, C20, C21, C22 |
| 6 | P1x16 | header_placement:header_loc | J6, J7, J8, J9, J10, J11 |
| 6 | Pad | Simon:PAD-TH | P1, P2, P3, P4, P5, P6 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R12, R17, R18, R22, R23 |
| 5 | 10n | Capacitor_SMD:C_0402_1005Metric | C11, C12, C15, C16, C19 |
| 5 | 4.7k | Resistor_SMD:R_0805_2012Metric | R25, R26, R27, R28, R34 |
| 4 | 100k | Resistor_SMD:R_0402_1005Metric | R10, R11, R13, R14 |
| 4 | 100n | Capacitor_SMD:C_0805_2012Metric | C31, C32, C35, C36 |
| 4 | 100n | Capacitor_SMD:C_0402_1005Metric | C8, C9, C14, C25 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R5, R7, R8, R35 |
| 4 | 10n | Capacitor_SMD:C_0805_2012Metric | C4, C5, C27, C28 |
| 4 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2, R30, R31 |
| 4 | 1k | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4 |
| 4 | 47p | Capacitor_SMD:C_0805_2012Metric | C29, C30, C33, C34 |
| 3 | 10 | Resistor_SMD:R_0402_1005Metric | R16, R19, R24 |
| 3 | ~ | Resistor_SMD:R_0805_2012Metric | R3, R4, R29 |
| 2 | 10u | Capacitor_SMD:C_1206_3216Metric | C3, C26 |
| 2 | 120 | Resistor_SMD:R_1206_3216Metric | R36, R37 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R20, R21 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C1, C24 |
| 2 | DNP | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R32, R33 |
| 2 | NC7SB3157P6X | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U8, U9 |
| 2 | NUP2105L | Package_TO_SOT_SMD:SOT-23 | D10, D11 |
| 2 | P1x5 | header_placement:header_loc | J12, J13 |
| 2 | TJA1051T-3 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U20, U21 |
| 2 | TLE9201SG | Package_SO:Infineon_PG-DSO-12-9 | U3, U15 |
| 2 | f042_wideband_module | fome_modules:f042_wideband_module | U1, U2 |
| 1 | 12k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 1n | Capacitor_SMD:C_0402_1005Metric | C6 |
| 1 | 1n | Capacitor_SMD:C_0805_2012Metric | C23 |
| 1 | 2.2k | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 470n | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 56u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C2 |
| 1 | 68k | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 74HC02 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U5 |
| 1 | Conn_01x05_Male | Connector_PinHeader_2.00mm:PinHeader_1x05_P2.00mm_Vertical | J3 |
| 1 | Conn_01x07 | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J5 |
| 1 | Fuse | Fuse:Fuseholder_Blade_Mini_Keystone_3568 | F1 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | MAX9142 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | MAX9924 | Package_SO:MSOP-10_3x3mm_P0.5mm | U10 |
| 1 | MCP6004 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U6 |
| 1 | Molex_112_643330100 | Simon:Molex_112_643330100 | J1 |
| 1 | Pololu_Breakout_DRV8825 | Module:Pololu_Breakout-16_15.2x20.3mm | A1 |
| 1 | Polygonus ECU Module | Simon:Polygonus-With-USB-SWD | J2 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | USB_B | Simon:BMM-USB | J4 |
Questions
How big is the Polygonus Universal Base PCB?
It measures 160 × 121 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Polygonus Universal Base use?
139 parts, built around the TJA1051T/3/1, FGD3040G2-F085, TLE9201SG and MCP6004-E/P. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Polygonus Universal Base KiCad files?
From the FOME-Tech/Polygonus-Universal-112 repository on GitHub, at the commit this page was made from: the board is Polygonus-Universal-Base.kicad_pcb and its schematic IGBT outputs.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Polygonus Universal Base design in my own project?
Its repository states no licence, so its author keeps all rights: ask FOME-Tech before reusing the design.
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