BlueGenieBMW

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Bluetooth audio for BMW with CAN-bus support for steering wheel buttons control. Supported cars should be E90, E91, E92, E93, E82, E81, (also probably 5, 7-series, maybe E46).

BlueGenieBMW 최신버젼 다운로드

최종 버전 다운로드 (.zip)

// repository documentation

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# BlueGenie BMW 
Bluetooth audio for BMW with CAN-bus support for steering wheel buttons control. Supported cars should be E90, E91, E92, E93, E82, E81, (also probably 5, 7-series, maybe E46).

**Features**: 
- Next / Previous - (CAN-bus) steering buttons 
- OTA over Wi-Fi (hold Volume Down and Previous Song buttons on the steering to go into Dwonload mode) 
- Other possibilities that you can develop:
 - autmoatically enable heated seats if ambient tempreture is low)
 - display car info on your phone, if you make an app ;)
 
 
 
**Hardware thingies** ([BOM](https://htmlpreview.github.io/?https://github.com/dzid26/BlueGenieBMW/blob/master/Hardware/bom.html)): 
- ESP8266 - (Wemos D1 mini) ($3) (they usually come with the black sockets) 
- BK3254 (BT4.1 A2DP audio) - with UART enabled firmware (the ebay ones should be ok) ($2) 
- MCP2515 board with some transciever ($2) 
- https://oshpark.com/shared_projects/qK7vXqp4 
- Audio jack PJ-320D
- (optional) resistors (2x2.2k & 2x3.3k) for level shifting for longetivity of ESP8266. You can replace them with short wire if you're on a brave side.

Solder the stuff together.
 
![PCB overview](https://github.com/dzid26/BlueGenieBMW/blob/master/Hardware/PCB%20overview.png)
 
Installation: 
- clone the repository and also run download_libraries.bat from /lib folder :/
- Import project to https://platformio.org/platformio-ide and flash ESP8266 using USB cable (for the first time).
- Power it with 5V cigarette charger or get Wemos power shield from ebay.
- Find K-CAN ("chasis" CAN-bus) - twisted green (CAN HIGH) and orange (CAN LOW) cables behind the radio and splice it and connect to MCP2515.

Some info regarding K-CAN - it is @100kbps 
- https://us.autologic.com/news/bmw-instrument-cluster-lights-and-the-k-bus-failure 
- https://www.newtis.info/tisv2/a/en/e82-123d-cou/repair-manuals/61-general-vehicle-electrical-system/2EAqiv9
- For CAN messages, refer to https://github.com/dzid26/opendbc-BMW-E8x-E9x/blob/master/bmw_e9x_e8x.dbc.

Photos:
![PCB](https://github.com/dzid26/BlueGenieBMW/blob/master/Hardware/Ready%20to%20solder.jpg)
![PCB](https://github.com/dzid26/BlueGenieBMW/blob/master/Hardware/PCB%2BCAN%2BESP%2B5V%20shields%20together.jpg)
![PCB](https://github.com/dzid26/BlueGenieBMW/blob/master/Hardware/MCP2515.jpg)
![PCB](https://github.com/dzid26/BlueGenieBMW/blob/master/Hardware/BK3254.jpg)

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