Anyone interested in an iDrive Arduino project I'm working on?

IAmOrion · Post by **IAmOrion** » Mon Jul 30, 2018 5:37 pm

As per title, anyone interested in an iDrive Arduino project I'm working on? (By interested, I mean, has an interest in it, would like to share info or learn - not a sales pitch to sell anything lol) Long story short, I'm thinking of different things I can have in my Z4, or potentially other vehicle. I started the project more out of curiosity but am now thinking how I could incorporate it into my E85. Although at the same time, I may not use it in the Z because no idea where it would go (Plus I'd need to design and 3D Print a frame/surround for it)

Anyways, currently I have it working as Bluetooth HID module, by combining an Adafruit Feather Bluefruit 32u4, and a custom Can-Bus shield

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The can-bus shield uses a TJA1055 SOIC (currently on a SOIC 14 to 2.54mm Adapter) and an MCP2515 I/P

I still have some work left to do on it - the iDrive that only goes left/right (Only has 5 buttons) works PERFECTLY.

The other 2 I'm still working on... they *almost* work perfectly. The non-touch one doesn't recognise rotation yet but everything else works. I do however have my suspicions atm that something is broken and that's why the rotary isn't working.

The touch controller also *almost* works perfectly. All buttons and joystick movements work. I haven't decoded touch can ids etc yet, and also rotary doesn't work - but some inits changed I think...I'm still looking into it.

5 button version uses 100KBPS Can
The other 2 use 500KBPS

There's no section really for this kind of projects on this forum (although it's pretty niche I guess)

firebobby · Post by **firebobby** » Mon Jul 30, 2018 6:01 pm

I have no idea what your on about, but it's great that we have people like you on the forum who tinker with bits and bobs. Good on you and I hope it works out...what ever it is that your trying to do

IAmOrion · Post by **IAmOrion** » Mon Jul 30, 2018 6:07 pm

firebobby wrote: ↑Mon Jul 30, 2018 6:01 pm I have no idea what your on about, but it's great that we have people like you on the forum who tinker with bits and bobs. Good on you and I hope it works out...what ever it is that your trying to do

haha, thanks

I'll make a little video at some point so it makes sense. But basically, it's using an iDrive controller as seen on the pic, as a bluetooth keyboard / mouse for Android/iPhone etc etc

firebobby · Post by **firebobby** » Mon Jul 30, 2018 8:31 pm

IAmOrion wrote: ↑Mon Jul 30, 2018 6:07 pm
firebobby wrote: ↑Mon Jul 30, 2018 6:01 pm I have no idea what your on about, but it's great that we have people like you on the forum who tinker with bits and bobs. Good on you and I hope it works out...what ever it is that your trying to do
haha, thanks

I'll make a little video at some point so it makes sense. But basically, it's using an iDrive controller as seen on the pic, as a bluetooth keyboard / mouse for Android/iPhone etc etc

Nah, still none the wiser

john-e89 · Post by **john-e89** » Mon Jul 30, 2018 8:37 pm

firebobby wrote: ↑Mon Jul 30, 2018 6:01 pm I have no idea what your on about, but it's great that we have people like you on the forum who tinker with bits and bobs. Good on you and I hope it works out...what ever it is that your trying to do

I’m with you Fred, he may as well write in Japanese.....

IAmOrion · Post by **IAmOrion** » Mon Aug 06, 2018 12:28 am

Video finally uploaded

dazq · Post by **dazq** » Thu Oct 25, 2018 1:18 am

Hi, I am working on s similar project with the same idrive knob unit,

I have all accept the rotary working , would you mind sharing the code you wrote that you used?

Much thanks in advance

IAmOrion · Post by **IAmOrion** » Thu Oct 25, 2018 1:22 am

dazq wrote: ↑Thu Oct 25, 2018 1:18 am Hi, I am working on s similar project with the same idrive knob unit,

I have all accept the rotary working , would you mind sharing the code you wrote that you used?

Much thanks in advance

You need to send a 0x273 command to Init the rotary. It should respond with 0x277

What are you using with yours? What’s your hardware setup out of curiosity?

Z35is · Post by **Z35is** » Mon Oct 29, 2018 12:16 am

I am interested - just starting a project on BMW communications and came over your tread while googling for shields using the 1055 or 1054 chips since there are too many pins to close to each other to solder by hand

.... I need to improve my KCAN reading capability as I am just playing on the PT-CAN and FCAN at this time.....
I have a question ... who - module - sends 0x273? and as a result of what preceding action?
And, is there anything I can help with ?

IAmOrion · Post by **IAmOrion** » Mon Oct 29, 2018 12:29 am

Z35is wrote: ↑Mon Oct 29, 2018 12:16 am I have a question ... who - module - sends 0x273? and as a result of what preceding action?
And, is there anything I can help with ?

Help with.... no, I've completed my project now

I made my own CANBus shield for the Adafruit Feather M0 BLE

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The TJA1050 is no good as you need the circuit to be fault tolerant, and like you say the TJA1054/1055 are TSOP only, but you can actually do what you need with MCP2515 and MCP2551. You can see from my PCB that I designed it to use THT (Through Hole) instead of SMD mainly because it's so much easier to solder and there was enough room to do so anyways.

My reference regarding 0x273 is for the can controller to send that CAN ID to the iDrive unit to initialise the rotary. The unit will respond with 0x277

Z35is · Post by **Z35is** » Mon Oct 29, 2018 3:34 pm

Thanks - interesting... One only makes a PCB when one has is a product on the go so hopefully you are on a good path

MPC2551 only does ISO 11898-2 High Speed ... that's PT and F-CAN in the E89 series cars. I am after the K-CAN and that's ISO 11898-3 Low Speed. Dominant and Recessive voltages don't quite align between the standards....slowly I am getting there ! Today at least I was able to find some of those ARIES TSOP to DIP adapters like you used.

warmasice · Post by **warmasice** » Mon Oct 29, 2018 3:47 pm

Does anyone have a clue what's going on?

IAmOrion · Post by **IAmOrion** » Mon Oct 29, 2018 3:51 pm

warmasice wrote: ↑Mon Oct 29, 2018 3:47 pm Does anyone have a clue what's going on?

I do!

ronk · Post by **ronk** » Mon Oct 29, 2018 11:08 pm

This is black magic / voodoo to me!
Clever stuff

shawna · Post by **shawna** » Tue Oct 30, 2018 7:01 am

So can we now buy it, rip out the sh***y screen and install a proper LED screen with full control?

Z4-forum.com

Z4-forum.com