4 layers100 × 100 mm
Hellen1-uaefi
andreika-git/hellen-one
Hellen-One Hardware Platform for rusEFI Engine Management System
90 parts38
4 layers15.2 × 9.8 mm
Hellen1-vr discrete
andreika-git/hellen-one38Hellen-One Hardware Platform for rusEFI Engine Management System
- Size
- 15.2 × 9.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 29
- Pads
- 156
- Tracks, vias
- 270, 44
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 14 Feb 2021
- Updated
- 30 Oct 2026
Overview
Hellen1-vr discrete is an open-source printed circuit board by andreika-git, from the andreika-git/hellen-one repository on GitHub. It is a 4-layer board of 15.2 × 9.8 mm with 48 parts on 29 nets, routed with 270 tracks and 44 vias.
It is built around the MCP6004-E/P, 74AHC1G02GW and NC7SB3157P6X, with the MAX9142ESA+ and SRV05-4-P-T7 among its other parts. Its parts include 20 resistors, 19 capacitors, 7 ICs and 1 diode.
Main components
5
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
74AHC1G02GW
SOT-353-5-40℃~+125℃ 1 1.5V、2.1V、3.85V 1.9V、2.9V、3.94V、4.4V 100mV、360mV、550mV 2 2V~5.5V 40uA 500mV、900mV、1.65V 74AHC NOR Gate SOT-353-5 Logic Gates ROHSNexperiaLogic Gates
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, Multiplexers
MAX9142ESA+
SOIC-8-40℃~+85℃ 1.5mV 2mV 320nA 81.94dB Push-pull TTL、CMOS SOIC-8 Comparators ROHSAnalog DevicesComparators
SRV05-4-P-T7
SOT-23-612V 1A@8/20us 3.5pF 500W@8/20us 5V 5uA 6V ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSPROTEKESD And Surge Protection (TVS/ESD)
README
readme.mdTL,DR:
hellen-one is a toolset to produce custom PCBs by merging gerber files of known proven functional modules into trivial frame PCB with mostly just the main vehicle connector. Gerber export and gerber merging happens in the cloud, i.e. on the github server.
Step 1: fork https://github.com/rusefi/hellen-example/ repo to get github actions and meta files learn about forking
Step 2: make sure github actions are enabled/enable github actions on your fork
Step 3: replace xxx and yyy in revision.txt with name of your board. By the way we expect kicad files to be placed in the root folder of the repository.
Step 4: create youboard.kicad_pcb from proven modules using KiCAD
Step 5: push into github to trigger hellen-one gerber expert and gerber merge (that's where the hellen magic happens! for instance gerber export is taken care by export.sh script which github action would invoke automatically. Just watch for the yellow circle to turn into a green checkmark.)
Step 6: (sorry rotation only by factor of 90 degrees at this point)
Step 7: order your using fabrication files from 'boards' folder!
Please see how some of the open source boards are done and follow the pattern:
Open Source Boards
- https://github.com/rusefi/alphax-4chan
- https://github.com/rusefi/uaefi
- https://github.com/rusefi/alphax-2chan
- https://github.com/rusefi/hellen154hyundai
- https://github.com/rusefi/hellen121vag
- https://github.com/rusefi/hellen88bmw
- https://github.com/andreika-git/hellen81/
- https://github.com/rusefi/hellen-miata-NA6
- https://github.com/rusefi/hellen-miata-NA8
- https://github.com/rusefi/hellen-miata-NB1
- https://github.com/rusefi/hellen-miata-NB2
This repository contains all scripts and data to create Hellen One boards for rusEFI!
See also https://github.com/rusefi/rusefi/wiki/Hellen-One-Platform
Hellen One is a DIY PnP ECU board construction toolset.
Do you have a car with a rare or non-standard ECU connector pinout? Do you want a custom DIY ECU but don't want to design it from scratch?
Then Hellen One is for you!
Please see Hellen One Wiki for more info:
https://github.com/andreika-git/hellen-one/wiki
FAQ
Q: I do not have any files inside hellen-one folder on my PC
A: That's a problem, you have not cloned submodules. See https://stackoverflow.com/questions/3796927/how-do-i-git-clone-a-repo-including-its-submodules
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 1u | Capacitor_SMD:C_0402_1005Metric | C755, C758, C761, C762, C763, C765, C766, C767 |
| 6 | 10n | Capacitor_SMD:C_0402_1005Metric | C756, C757, C760, C764, C768, C769 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R757, R762, R763, R767, R768 |
| 4 | 100k | Resistor_SMD:R_0402_1005Metric | R755, R756, R758, R759 |
| 3 | 10 | Resistor_SMD:R_0402_1005Metric | R761, R764, R769 |
| 3 | 100n | Capacitor_SMD:C_0402_1005Metric | C753, C754, C759 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R752, R753 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R765, R766 |
| 2 | 74AHC1G02 | Package_TO_SOT_SMD:SOT-23-5 | U752, U757 |
| 2 | NC7SB3157P6X | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U755, U756 |
| 1 | 12k | Resistor_SMD:R_0402_1005Metric | R754 |
| 1 | 1n | Capacitor_SMD:C_0402_1005Metric | C751 |
| 1 | 2.2k | Resistor_SMD:R_0402_1005Metric | R751 |
| 1 | 470n | Capacitor_SMD:C_0402_1005Metric | C752 |
| 1 | 68k | Resistor_SMD:R_0402_1005Metric | R760 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R770 |
| 1 | LED-GREEN-0603 | LED_SMD:LED_0603_1608Metric | D751 |
| 1 | MAX9142 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U754 |
| 1 | MCP6004 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U753 |
| 1 | Module-vr-discrete-0.5 | hellen-one-vr-discrete-0.5:vr-discrete | M750 |
| 1 | SRV05-4-P-T7 | Package_TO_SOT_SMD:SOT-23-6 | U751 |
Questions
How big is the Hellen1-vr discrete PCB?
It measures 15.2 × 9.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Hellen1-vr discrete use?
48 parts, built around the MCP6004-E/P, 74AHC1G02GW, NC7SB3157P6X and MAX9142ESA+. 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 Hellen1-vr discrete KiCad files?
From the andreika-git/hellen-one repository on GitHub, at the commit this page was made from: the board is kicad/modules/hellen1-vr-discrete/hellen1-vr-discrete.kicad_pcb and its schematic kicad/modules/hellen1-mcz33810/hellen1-mcz33810.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hellen1-vr discrete design in my own project?
Its repository states no licence, so its author keeps all rights: ask andreika-git before reusing the design.
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