[simzep]

I'm in the process of doing the same atm.

You need a can adapter and send two messages ten times a second with 500k and don't forget the 120Ohm termination on both sides: 

Code:

static tCAN message1;

   message1.id = 0x130; //formatted in HEX
   message1.header.rtr = 0;
   message1.header.length = 5; //formatted in DEC
   message1.data[0] = 0x45;
   message1.data[1] = 0x40;
   message1.data[2] = 0x22; //formatted in HEX
   message1.data[3] = 0x8F;
   message1.data[4] = 0xFE;

   static tCAN message2;

   message2.id = 0x12F; //formatted in HEX
   message2.header.rtr = 0;
   message2.header.length = 8; //formatted in DEC
   message2.data[0] = 0x37;
   message2.data[1] = 0x7C;
   message2.data[2] = 0x8A;
   message2.data[3] = 0xDD; //formatted in HEX
   message2.data[4] = 0xD4;
   message2.data[5] = 0x05;
   message2.data[6] = 0x33;
   message2.data[7] = 0x06;

I'm using a SparkFun Can shield on an ardiuino.

If you want to flash you will need a zgw/zgw preferred 4sk or 8sk (Important: Change the ZGW vin to the desired NBT vin or it will lock.)

As a PSU just get an old PC Power Supply all components use 12V anyways.

Just get a quadlock extension like this and cut it for the main connection.

Interesting links and part numbers in no particular order:

Code:

http://www.bmw-etk.info/teile-katalog/prd/BMW/VT/P/F01/Lim/740dX/ECE/L/A/2011/01/52541/61/61_2350/61359322532 ZGW connectors

61139299610 OABR Connector
61119374919 OABR pins

https://3.bp.blogspot.com/-VVf_BRHoAIg/V9-JmHsfKWI/AAAAAAAADUg/j2BfH_SfweMzCrVqMvFK2h7AtuZ7Tig7QCEw/s1600/NBT-EVO-coding-cable.jpg OABR wiring

https://www.develektro.com/Produktpalette_3246 ZGW stuff

can wiring https://www.e90post.com/forums/attachment.php?attachmentid=1969408&d=1547137226

OABR to ATM wiring

Code:

OABR socket:
61139299610
OABR pins:
61139230105
pinout:
evo side:
2: ETH ATM RX-
4: ETH ATM RX+
8: ETH ATM S
17: ETH CODING TX+ to RJ45 pin 1 and/or OBD2 pin 12
18: ETH CODING RX+ to RJ45 pin 3 and/or OBD2 pin 3
19: ETH CODING TX- to RJ45 pin 2 and/or OBD2 pin 13
20: ETH CODING RX- to RJ45 pin 6 and/or OBD2 pin 11
atm side:
2 - ETH + to evo pin 4
3 - ETH S to evo pin 8
4 - ETH - to evo pin 2
7 - KCAN2 High to retrofit adapter KCAN2 lines
9 - KCAN2 Low to retrofit adapter KCAN2 lines
Passthrough mic, bmw assist:
15 - Mic + to head unit quadlock 17
16 - Mic - to head unit quadlock 22
17 - Mic S to head unit quadlock 33
18 - Mic S to microphone
19 - Mic - to microphone
20 - Mic + to microphone

54pin connector:
48 -> KCAN H on NBT
49 -> KCAN L on NBT

18pin connector:
9 -> OABR 18 (RX+)
11 -> OABR 17 (TX+)
12 -> OABR 19 (TX-)
13 -> Quadlock 29 (ETH-A)
18 -> OABR 20 (RX-)