F103 Wideband Controller

Hardware inside and outside of the ECU
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Dron_Gus
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Re: F103 Wideband Controller

Post by Dron_Gus »

Finally arrived.
Some issue with fitment. Thanks to plastic enclosure you just need to push it harder. Acceptable result for development with no enclosure on hands.
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Dron_Gus
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Re: F103 Wideband Controller

Post by Dron_Gus »

Some progress.
Screenshot from 2022-05-30 01-11-16.png
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TS now can read livedata from 1f_rev2 wideband.
Next step is settings.

PS communication is over UART 115200. Next step is CAN.
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AndreyB
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Re: F103 Wideband Controller

Post by AndreyB »

Fresh rev3 hardware

now targeting 26 pin small square case
now with some spare digital inputs
now using 64 pin F103
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https://github.com/rusefi/rusefi-hardware/tree/main/wideband-F103
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Re: F103 Wideband Controller

Post by AndreyB »

DAC output works! Next step to merge the DAC code into official repo and fix PCB dimentions.

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Re: F103 Wideband Controller

Post by joaodh »

It's getting really interesting. Unfortunately I have 5 boards to assembly with rev2. But you are already in rev3 :lol:.

I think I will wait until the things be more stable. Also the stm32 mcu seems be out of stock. On this board do you use a Chinese version?
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AndreyB
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Re: F103 Wideband Controller

Post by AndreyB »

stm32/gd32 questions is now clarified on https://github.com/rusefi/rusefi-hardware/blob/main/wideband-F103/readme.md my boards are a mix depending on what was available at time of order.

Also added a link to rev2 firmware binaries.

At the moment I am not sure if I will be ordering rev 4 on Tuesday or much later, overall this F103 is very much in the air.
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Re: F103 Wideband Controller

Post by joaodh »

AndreyB wrote:
Sun Sep 04, 2022 3:00 pm
stm32/gd32 questions is now clarified on https://github.com/rusefi/rusefi-hardware/blob/main/wideband-F103/readme.md my boards are a mix depending on what was available at time of order.

Also added a link to rev2 firmware binaries.

At the moment I am not sure if I will be ordering rev 4 on Tuesday or much later, overall this F103 is very much in the air.
I have bought today two gd32f103. I will assembly the rev0.2 to see if works properly. I have also with me two ch32f103 do you think that will be possible make this one works also?
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AndreyB
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Re: F103 Wideband Controller

Post by AndreyB »

No plans for ch32f103 sorry, each extra chip is huge amount of effort.
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Re: F103 Wideband Controller

Post by joaodh »

AndreyB wrote:
Mon Sep 05, 2022 4:10 pm
No plans for ch32f103 sorry, each extra chip is huge amount of effort.
Will take time to receive the GD32. I have have spare boards let's see if I can make CH32 works :lol:
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Re: F103 Wideband Controller

Post by AndreyB »

It takes time :( https://github.com/mck1117/wideband/pull/164 15 days so far no feedback no merge :(
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Re: F103 Wideband Controller

Post by AndreyB »

Nissan uses 4 wire "middle band" sensors, do these have anything in common with our WBO logic?
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https://github.com/rusefi/wideband/issues/12
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Re: F103 Wideband Controller

Post by mck1117 »

AndreyB wrote:
Tue Nov 15, 2022 12:33 am
Nissan uses 4 wire "middle band" sensors,
I got one to work here: https://rusefi.com/forum/viewtopic.php?p=43610#p43610
AndreyB wrote:
Tue Nov 15, 2022 12:33 am
do these have anything in common with our WBO logic?
Nope, they're basically just "source voltage and measure current" type devices, no active control really needed.
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Zeiss
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Re: F103 Wideband Controller

Post by Zeiss »

@Dron_Gu: Which enclosure is this? It looks very nice :)
Thank you!
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Dron_Gus
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Re: F103 Wideband Controller

Post by Dron_Gus »

Zeiss wrote:
Tue Nov 15, 2022 8:18 am
@Dron_Gu: Which enclosure is this? It looks very nice :)
Thank you!
Plastic one is https://sl.aliexpress.ru/p?key=OokNx3z
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Re: F103 Wideband Controller

Post by Dron_Gus »

But with slight modification (planned for V2) should also fit into https://aliexpress.ru/item/4000811747039.html
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Re: F103 Wideband Controller

Post by Zeiss »

Thank you very much :)
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Re: F103 Wideband Controller

Post by Timbelom »

Stock ECU
hard wired to battery
quick engine restarts seem to have a problem:
on engine cranking controller seems to go into heating mode where it takes a while to re-heat what is supposed to be a hot sensor
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Re: F103 Wideband Controller

Post by Dron_Gus »

Battery voltage drops down to 8.53V (actually seems even lower) during cranking. This cause controller to switch to SensorNoHeatSupply state and after battery voltage rises above 9.5 - start heating from the beginning.
https://github.com/dron0gus/wideband/blob/master/firmware/wideband_config.h#L55
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Re: F103 Wideband Controller

Post by AndreyB »

mck1117 wrote:
Thu Apr 07, 2022 8:17 pm
LSU adv five wire pinout
Something like 2017-2019 Audi A4 Upstream Front Oxygen Lambda Sensor 8R0906262 8R0906262E would be the sensor
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