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I found that the TV module connector has at least the red/green 12V cable and the brown ground cable (as it can be seen bellow) so I will probably go with that. Where the CD changer mounting bracket is but after a lot of searching was not able to find the CD changer prep (not even taped anywhere). You can use this signal to tell when it's 'clear to send', but you need to do it in software.Hi again, so I did remove the TV module and reached inside the hole (below): It has an output pin that goes high whenever it receives traffic. The TH3122 doesn't in itself deal with bus contention. It may work like that, but I'm not sure if you would need USB drivers etc.įrom what I have read and I am understanding is the Melexsis TH3122 chip in Resler's iBus allows the single wire iBus interface to convert to RX / TX and allows for the proper bus contention / collision detection as you mentioned above. Armed with this info, you can develop the app.Ĭan I connect Resler's iBus interface to the Arduino Mega ADK through the USB host on the board and use a ble 4.0 bluetooth shield from seed for example and connect the tablet via bluetooth to send and transmit the different data. Navcoder gives readable translations of pretty much every command, so it's quite easy to see what's going on. Hook it up to the car and press buttons and log all the traffic. So what I understood from your post is that I should use Resler's iBus interface and Navcoder to get all the hex values for the different key presses and various data from the different systems and use this info to help develop the app for Android. I think it was the other way around - Thanks Robin :D

Thanks to both of you for the help so far. Not sure if I am on the correct path for this project.

I understand I would need to create an app on the Android device to generate and capture the data.įrom what I have read and I am understanding is the Melexsis TH3122 chip in Resler’s iBus allows the single wire iBus interface to convert to RX / TX and allows for the proper bus contention / collision detection as you mentioned above.ĭo you know what stepper motors are used in the AC system to control the mixing flaps? So what I understood from your post is that I should use Resler’s iBus interface and Navcoder to get all the hex values for the different key presses and various data from the different systems and use this info to help develop the app for Android.Ĭan I connect Resler’s iBus interface to the Arduino Mega ADK through the USB host on the board and use a ble 4.0 bluetooth shield from seed for example and connect the tablet via bluetooth to send and transmit the different data. I have seen your posts on this forum and I also have seen some posts on a few bmw forums. Hi Robin2 - I think Ian helped out with your question about how to send the ibus info to arduino.