100 lines
3.5 KiB
Markdown
100 lines
3.5 KiB
Markdown
# rusEFI Wideband Controller
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**NOTE: This is currently under development. This page might be wrong or change quickly.**
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[WBO](WBO)
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[Hellen-WBO](Hellen-WBO)
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## FAQ
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### Q: dim red LED?
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A: We only preheat mildly until engine is running for reasons TBD.
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### Q: Why would you need CAN for rusEFI WBO?
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A: We control heater based on RPM, also WBO compensate for battery voltage based on CAN info.
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## Pinout
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[connector info](https://rusefi.com/forum/viewtopic.php?p=43705#p43705)
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F042 module pinout
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| Pin Number | Function | Notes |
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|:---:|:---:| ---|
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| 1 | Ground | Connect to chassis ground |
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| 2 | LSU Ip | Connect to sensor pin 1 |
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| 3 | LSU Heater - | Connect to sensor pin 3 |
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| 4 | LSU Heater + | Connect to sensor pin 4 |
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| 5 | No connection | |
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| 6 | 12v Supply | Connect to fuel pump supply or independent relay controlled by ECU |
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| 7 | No connection | |
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| 8 | LSU Vm | Connect to sensor pin 2 |
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| 9 | LSU Rtrim | Connect to sensor pin 5 |
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| 10 | LSU Un | Connect to sensor pin 6 |
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| 11 | CAN H | CAN bus high |
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| 12 | CAN L | CAN bus low |
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## LED decoding
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| Blue LED | Green LED | Meaning |
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|:--------:|:---------:| -----|
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| off | fast flash | sensor warming up |
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| off | slow flash | Sensor hot, operating normally |
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| flashing | off | See error code table below |
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| alternating | alternating | Bootloader, see below |
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## Firmware Update
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rusEFI own wideband module requires one time initial programming. Self contained version of the board relies on custom USB header while module integrated into Hellen requires usage of ST-Link programmer hardware via TC2030 or breakout SWD pins.
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initial programming binary at [https://github.com/mck1117/wideband/tree/master/for_rusefi](https://github.com/mck1117/wideband/tree/master/for_rusefi)
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At the moment only known to work using stm32cube software not ST Link utility (weird). In case of Hellen 5v via USB is required.
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## Error Codes
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Green LED off and blue LED flashing indicates an error. The blue LED will blink a certain number of times, with a 2 second pause, then repeats.
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| Blinks | Meaning |
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| --- |:--- |
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| 3 | Sensor failed to heat up within 30 seconds |
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| 4 | Sensor overheated after entering closed loop mode |
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| 5 | Sensor unexpectedly cold after entering closed loop mode (bad wiring?) |
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### Bootloader LED Codes
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| Blink pattern | Meaning |
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| --- |:--- |
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| alternating slowly | Firmware integrity check failed, please retry firmware upgrade. |
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| alternating quickly | Waiting for bootloader entry command, only occurs for ~1 second before launching firmware |
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## Setting it up in Tunerstudio
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In order for the WBO to work, the following conditions (and maybe more) have to be met:
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* Under "Controller" -> "Can Bus Communication" -> "Enable rusEFI Can Broadcast" = "true" must be set
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* Under "Sensors" -> "EGO Sensor" -> "Enable Can Wideband" = "true" must be set
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There was also an opinion voiced that the board needs to see voltage on the "vBatt ADC Input" pin. This is as yet unconfirmed.
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## Source Code
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[The hardware and software source code are hosted here.](https://github.com/mck1117/wideband)
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## Index Selection
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[https://github.com/mck1117/wideband/issues/11](https://github.com/mck1117/wideband/issues/11)
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## Fabrication
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* Power board with 5v (WBO module produces it's own 3v from supplied 5v)
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* [Tag-Connect-TC2030](Tag-Connect-TC2030) to upload [firmware](https://github.com/mck1117/wideband/blob/master/for_rusefi/wideband_image_with_bl.bin)
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* power cycle to confirm green LED blinking
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