Bmw Ibus Interface Program Software

  четверг 21 марта
      21

Once again: the BMW IBus has NOTHING in common with the CAN bus (Bosch). You can not connect any CAN interface (neither built-in in your android device no. Not complicated but some work / programming of the IBus device involved. Wear OS Software and Hacking General.

That guy is also using Rolf Reslers IBUS adapter! Nice maybe im trying to get one, since its not too expensive at all, but im worried about the cables: White: IBUS Red: +12V Brown: GND Green: NTSC Okay, red and brown to the cigar jack.

What i have to do with green and white? Since i dont have the original monitor, i think that dont need green at all, but where to connect the white? I cant see any infos where its been located i was told to look for the cable on the cd changer, but i dont have one at all.

Once again: the BMW IBus has NOTHING in common with the CAN bus (Bosch). You can not connect any CAN interface (neither built-in in your android device nor external device) to your old BMWs IBus. The only (reasonalble) way of interfaceing imho is to decode the IBus messages using rolfs device and to output voltage levels (DAC) which you feed into the steering wheel control lines of the android device. These input lines take a voltage signal usually generated by a resistor network in the steering wheel button control unit. You would 'simulate' the different resistor values by outputting different voltages at the reception of certain IBus messages. A tinker project as you can see.

Not complicated but some work / programming of the IBus device involved.

Hi All, I have only seen a few topics on this forum about interfacing arduino with the BMW iBus. I am restoring a 1993 BMW 850CI and I am looking to replace the MID, Radio and temperature controller with a Android based tablet that will communicate via Bluetooth to the Arduino controller. I am not sure what all this entails but am willing to work on this project and looking for advice from others who may have already done something similar.

Any references as to where to start would be appreciated. Not sure which Arduino components etc I need to start with to get this project off the ground. Your advice is much appreciated. Hi Robin2, I looked at this thread before posting which was helpful. You were a major contributor to this post so I appreciate your experience in the Arduino space.

Program

The additional help that I need is what Arduino hardware controller / bluetooth shield I need so I can get started with capturing the data stream from the iBus via bluetooth. In my research process I did find some additional info on other sites in reference to an android app that was created for a different model BMW so I am in the process of downloading that reference and see how they may of utilized the data captured to then output to the android device. Also I am gathering info from web on the IHKA controller which controls the different flap stepper motors in the AC/Heat system.

From my reasearch I see that there are three Buses that work together the KBus, iBus and MBus. Hi Kish, I've got quite a lot of experience with the iBus and BMW electronics in general, and will try and help where possible.

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Hardware wise, you have a couple of choices. Most of the LIN bus transceiver chips (eg MCP2025) can be made to work, but I never found it very easy to deal with bus contention, where two devices are trying to talk on the iBus at the same time. For testing purposes, they should be fine, and are cheap and readily available. Going forwards, I would advise you to track down the Melexix TH3122.