71 lines
4.1 KiB
Markdown
71 lines
4.1 KiB
Markdown
Unified rusEFI firmware runs on a wide array of boards with stm32f4 and stm32f7 microcontrollers.
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We also have Kinetis and Cypres prototypes.
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As of March 2020 microRusEFI is sold as completely ready to run ECU or as a pre-assembled 80% complete kit.
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As of March 2020 Frankenso board is sold as mostly as a DIY kit.
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| Board | Features | Released in | Maximum recommended engine |
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| ------------- | ------------- | ---- | ---- |
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| [Frankenso](https://rusefi.com/forum/viewtopic.php?f=4&t=569) | Most customizable board | 2014 | Flexible - probably 8 cylinder max recommended |
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| [Prometheus](https://rusefi.com/forum/viewtopic.php?f=4&t=1215) | The only rusEfi board with on-board wide band controller | 2017 | 4 cylinder |
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| [Frankenstein](https://rusefi.com/forum/viewtopic.php?f=4&t=359) | Simplest rusEfi board | 2014 | Flexible - probably 8 cylinder max recommended |
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| [microRusEfi](Hardware_microRusEfi) | Available fully assembled! | 2019 | 4 cylinder, single electronic throttle |
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| [Hellen](https://rusefi.com/forum/viewtopic.php?f=4&t=1682) | Coming soon! | 2020 | TBD cylinder, single electronic throttle |
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| [Proteus](Proteus) | rusEfi if you have lots of hardware or cylinders | 2020 | 12 cylinder, dual electronic throttles |
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### Q: How to select a board?
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A: History shows that fully assembled boards are the safest way to start. History shows
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that 80% of the kits are never assembled. As of March 2020 we have many microRusEfi [in stock](https://rusefi.com/shop/) and
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very remaining [old stock assembled Frankenso](https://www.tindie.com/stores/russian/). New fabrication of the assembled Frankenso board is
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currently not planned.
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### Q: What else matters?
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A: Types and total count of crank and camshaft positions sensors is the next
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important question. microRusEfi unfortunately only supports one VR shaft input maximum with two inputs total.
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Frankenso supports up to 2 VR or 2 Hall shaft position sensors. Prometheus supports TBD. Proteus supports TBD.
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### Q: why stm32?
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A: [selecting_open_source_ecu_microcontroller](selecting_open_source_ecu_microcontroller)
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### Q: This is all very cool but you guys do not have a Plug&Play for my Trabant. I think I will go and make a new rusEFI board just for my Trabant!
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A: At rusEFI we love cool new projects, but we are a really small team and only have so much time to work on rusEFI.
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We already have lots of different hardware configurations and we would suggest using one of the existing wire in versions.
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Nobody is stopping you from making your own board, but we cannot guarantee any support for that board or assistance with building it.
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If you proceed then please consider making a P&P adapter board design based on Hellen, Proteus, or microRusEFI.
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### Q: What EDA are you guys using for your open source hardware?
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A: rusEFI preference at the moment is KiCad 5. A few legacy pieces are still using KiCad 4. While many EDAs have many cool features KiCad gives rusEFI uniformity and consistency.
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See also https://rusefi.com/wiki/index.php?title=Hardware:Boards_Comparison
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See also https://github.com/rusefi/rusefi/tree/master/hardware
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### Q: What pin do I use for tachometer output?
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A: There is no single right answer. It really depends on what kind of electrical signal is your tachometer expecting. Is it low-side driven? +5v logic signal driven? +12v logic signal driven?
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### Q: What are these four status LEDs close to main processor?
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A: Many rusEFI boards have four status LEDs. All four LEDs blink on start-up just to confirm life.
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Blue Communication LED which is expected to blink at 50% duty cycle during normal board operation.
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If USB communication cable is connected Blue LED starts to blink faster.
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Red CRITICAL (previously known as FATAL) error means you have a CRITICAL error, engine operation is not possible with CRITICAL error.
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Green LED on many rusEFI boards is RUNNING. Off if engine is stopped, blinks if engine is cranking, solid if engine is running.
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### Q: what about many other LEDs which seem to be blinking in sync with injectors or coils?
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A: Following Frankenso tradition, Injector LEDs are RED. Ignition LED are blue, power LED are green.
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