28id bsd generator:singnal (27a4 interface ews 3.3-dme (28id bsd generator:singnal (281c bit-serial data interface - bmw 2004 730 question. Q: I have an rather new BMW with OBD2 Connector which uses D-CAN can't I use a simple (cheap) Interface? A: No, you need a interface which supports D-CAN such as the one offered in this auction, there is no K-Line available in the new cars anymore so you will not be able to communicate with the car using a K-Line only based Interface.
. Project: Arduino & BMW K/I-Bus Interface.The examples below are from version 0.0.1-alpha. This is an older version of the code, and requires and outdated Arduino IDE, as well as some modifications to the IDE core files.
0x68, 0x04, 0x6A, 0x36, 0xA0, 0x90 ; // DSP Source = CDThe section below is the setup and the main loop functions. The main loop runs millions of times per second – it first checks if the I/K-Bus has been idle for over 60 seconds in order to put the TH3122 IC into sleep mode, and shutdown the Arduino. The TH3122 will wake up automatically when it receives K-Bus voltage once again. The main loop then sends any messages that are awaiting in the circular buffer.
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And finally, the loop reads the serial buffer and passes the bytes to the readIbus function.