yashsingh1/xdaforums huggingface dataset:
[MTCD Android Head Units General] ZeroZorro:
It was on NONE, but it was not car brand customised...

I will try again with your guidelines and report back!
[MTCD Android Head Units General] typos1:
You mean its a universal unit ?

I dont understand what you mean by "its was not car brand optimised".
[MTCD Android Head Units General] ZeroZorro:
Yes, universal
[MTCD Android Head Units General] typos1:
So you have no CAN Bus decoder ?
[MTCD Android Head Units General] ZeroZorro:
I have this one: https://www.dynamicsounds.co.uk/con...g-wheel-stalk-control-adaptor-1002029843.html

....but while writing this i think that this cable might only work to translate steering-wheel control (which I don't have a problem with) but does NOT decode canbus...right? So I need to search for a canbus decoder specific for my car...am I getting close? ;)
[MTCD Android Head Units General] SkyBeam2048:
Yes I think you're right. This "decoder" will just read the keypresses from the steering wheel controls and convert them to analog output which can be connected to the steering wheel control (SWC1/SWC2) lines of MTCD units. Basically you get an analog SWC interface simulated by this box so it works with very simple ADC (Analog-Digital Converters) built-in into most aftermarket head units like MTCD devices.

Having said this you are not actually feeding any canbus data into your MTCD head unit but just analog SWC signals (converted from canbus data by this box). Therefor your correct factory settings is "none" as you don't have any canbus connected to your MTCD device.

If you want to get more canbus data into your head unit I guess you need to ask your manufacturer to provide a car/brand-specific canbus decoder for your vehicle (if there is any). Then hook it up to your canbus lines and your head unit and change the factory settings accordingly. Until then I am afraid the only data you get from your current setup is the steering wheel buttons translated to resistor values for your SWC.
[MTCD Android Head Units General] ZeroZorro:
It's getting more clear every minute now! #Finally ;)

In the attachment is a list of what should be the signals the canbus interface can deliver. My reverse camera is already working, i don't have climate control, TPMS and most functions can be read from the regular cockpit of the car (open doors, lights, speed, rpm). So in my case i think it's not worth the investment or am i missing something big?

Also when i get my OBDLink LX to work i am almost completely covered i guess.

Thanks for your patience and clear explanation!
[MTCD Android Head Units General] ZeroZorro:
I know think (and please keep correcting me if wrong) the biggest error i made while trying to get this fixed is that i thought the HeadUnit was able to get the Canbus-signals like open door, lights, gear etc from the OBD-adapter.

Because apps like Torque can read those functions from the adapter i just presumed that the HeadUnit and apps like Vehicle.apk use the same information feed.

So i was under the impression that i only needed a SWC-interface cause all the other info would be handed to the unit by the OBD-adapter...
[MTCD Android Head Units General] typos1:
Yes, for full support these units need one of the CAN Bus decoders that are designed for use with these units.

The correct settings for your car with that decoder is "none"".
[MTCD Android Head Units General] typos1:
CAN Bus isnt standardised - each manufacturer has their own version., often multiple versions. And they keep revising their versions so any universal adapter would soon be out of date., it would also probably be very expensive.

Luckily, because all these units are essentially the same inside, whether universal or custom fit exteriors, all [MENTION=1369996]ZeroZorro[/MENTION] has to do is find a seller that will sell him the CAN Bus decoder for his vehicle, they only cost about £15 GBP.
[MTCD Android Head Units General] maurogrc:
Hi!

Where did you get this info from?

I'm looking for a infoadapter for my ibiza 6j.

Best regards
[MTCD Android Head Units General] ZeroZorro:
Well, there is...i will sent a link to it in a minute... ;)

---------- Post added at 12:32 PM ---------- Previous post was at 12:30 PM ----------

Link to 'Universal Canbus Decoders' HERE

The BCI-6 is 'only' €159,- (but as you stated, you can take it to your next car too!)

PS Don't click ont the pictures at the right side of this webpage to get to the several BCI's cause the links are not working. Instead look for the several models at the bottom of the page, those links are working like they should!

---------- Post added at 12:33 PM ---------- Previous post was at 12:32 PM ----------

And the Application List: HERE

---------- Post added at 12:38 PM ---------- Previous post was at 12:33 PM ----------

This may help some too figuring out what there auto is capable of: LINK

Info is mostly gained from the forum you are reading right now, go a few posts back and there is some clear explanation about OBD, Canbus and SWC interfaces...it helped me a lot to get thing a little less foggy ;)

---------- Post added at 12:44 PM ---------- Previous post was at 12:38 PM ----------

This may help some too figuring out what there auto is capable of: LINK
[MTCD Android Head Units General] SkyBeam2048:
Yes and this is exactly what I meant a CANBUS decoder should NOT be. This is not universal. It supports multiple car models but just picks up a couple of hard-coded signals and passes them on to external triggers. There are dedicated wires for on/off signalization or triggers to external devices. So this interface is literally a protocol translator and able to catch only a limited number of events. And no, CANBUS are not individual for each vehicle. There is low-speed and hi-speed CAN. That's it. Even any standard Linux kernel provides CANBUS network interfaces.

What indeed is car-specific are the CANBUS adresses and messages. And this is what I was referring to. Currently those canbus-decoder boxes or universal canbus adapters will ship with some presets but essentially they are limited to a strictly defined set of events.

What I was talking about is a completely software-configurable CANBUS interface. This could be directly integrated into MTCD pretty easily too. Microcontrollers which can communicate on hi/lo-speed CAN are not that expensive. As a result the head unit would be able to receive all (yes, not just specific but really all) messages on the CAN bus and be able to send messages to any device on the CANBUS as well.

Sure you need to know what those events are but the mapping should be done in software and a repository could be built. So basically assuming MTCD would come with such an interface you wouldn't have to configure those events on the MCU or so. Instead it would be like a network interface to the head unit where apps could interface with any other node on the cars CANBUS. Of course for the most common ones you would provide some sort of driver like auxiliary displays, reverse detection, climate controls etc. But it would still allow anybody to map additional actions to CANBUS events. Thus allowing the user even to adapt the messages sent/received to any CANBUS enabled car on the market, even if you're the only owner in the world.

A simple example would be steering wheel controls. Assuming you have a car nobody else yet had a touch on and no custom CANBUS decoder is available. So hook up the universal one (which also does not know the keypress events) but you put it into listen/sniff mode. Then press the button and you will see the CANBUS message generated by keypress (including event and source address). Then turn this into an android action to map it to whatever action you want this event to trigger. Et voila, you just got CANBUS steering wheel controls support for a previously completely unknown car. Without any custom hardware.

Moreover this person could share the mapping now with others, allowing other car owners of the same car to profit from this work.

So more advanced coders might then also map more complex events like climate controls, displays etc.

I don't expect car manufacturers to come up with a documentation of their CANBUS connected nodes/devices but I am quite sure such universal interfacing would be possible and not even too expensive.
[MTCD Android Head Units General] ZeroZorro:
Well.....that's a lot of new and useful information for me. Thank's for your your time, again.

I think to remember someone is trying to let a Raspberry Pi putting to use for this task, but afaik it's in very early stage.
[MTCD Android Head Units General] had305:
i want to buy please advice

please i want to buy android head unit , advice please , is this joying JY-UM124N2 is good or not?
[MTCD Android Head Units General] Clandaries:
This Joying is no PX3 or PX5 as i can see on Joying website.

And i would not buy any Intel headunit anymore because this cpu is not build anymore.

Regards
[MTCD Android Head Units General] ab1702:
Dab Antenna power..

I'm using a glass mount antenna, I bought a better alpine antenna rather than the one that came with the unit and it works fine for signal 95% of the time.

The problem I have which has been constant since I got the unit is that if I turn the brightness of the screen up the signal deteriorates dramatically so I have to have the screen set to low brightness which means I can't see it on a bright day.

I'm guessing that when I turn the brightness up the unit must be drawing more power and taking it away from the usb which is powering the dab and glass mount antenna.

Does anyone know a fix for this problem without installing an external antenna with a seperate power cable??

I'm aware if I did that it would give me better reception but the signal is decent as it is now when the brightness of the screen is low and I don't want to drill a hole in my roof and run the cables unless I really have to as my fm/am is fine and also gps is fine with the one under the dash so it would only be for the dab.

What is annoying me aswell is that I had this same setup on a older mtcb unit that I had with android 4.4 and it worked perfectly fine, oh and if that dab app did lose signal it just went quiet and didn't make that annoying high pitched squeeling noise!

Thanks
[MTCD Android Head Units General] had305:
it's PX5,

but from your side which head unit is good
[MTCD Android Head Units General] typos1:
I have read a few articles where some people have hacked the CAN Bus on their car and managed to get extra functions/read/interpret CAN Bus events. One guy used something called CANopenr" on an Alfa 147, another used an Arduino on a Mazda 3. In both cases they put extra data on the MFD between the dials (Alfa)/in the centre of the dash (Mazda).

Or you could crowd fund your idea ??

And it isnt a "Joying" - there are only a seller, its probably a Joyous unit.
[MTCD Android Head Units General] ZeroZorro:
I am investigating the possibilities of using a RPI at the moment and also an app called RealDash seems promising and maybe usefull.

Problem is i still cant get my OBDLink LX connected to my HeadUnit in spite of all my efforts, but hey, i will sort it out in the end i hope ;)
[MTCD Android Head Units General] typos1:
As has been explained before, youre using the wrong thing - OBD is different to CAN Bus, you need to use the 2 CAN Bus wires on the loom that is wired to the plug on your car that plugs into the stereo if you wanna try and do stuff with the CAN Bus.

Using OBD isnt going to get you anywhere.
[MTCD Android Head Units General] Clandaries:
If i read right it says Intel CPU:

https://www.carjoying.de/vestempcp/quickview/view/id/326

Regards

I have a Suzuki Swift Sport and no VW/Audi/Seat/Skoda

So i cant say whitch radio ist good for the VW group.

I have bought a radio from a reseller called Smart Rover and i am very happy with it.
[MTCD Android Head Units General] Babs89:
Px5 Peugeot 308 AC issue

Apologises if this is the wrong place (I'm new to xdadevelopers) but I recently purchased an Xtrons PX5 for my Peugeot 308 (2009 version) and I'm encountering a strange issue where the radio seems to override the car's heater control. My car doesn't have climate control (only 3 dials - flaps / fan speed / temperature). [Image Attached]

Since installing the unit, I can't get hot air unless I open the 'AC' app on the unit and tap the temperature up buttons but even then the display still shows 'LO' for both driver and passenger side. Under factory settings > Can Bus there is an Air Condition option with the following choices:

Air Condition

- On

- Hide

- Swap

- Type 1

I've tried On, Hide & Type 1 but no noticeable difference. Does anyone know what these options mean / how I can tell the radio I don't want it to control the heater in the car?

[IMG="Picture of unit in dashboard"]https://drive.google.com/open?id=1kwAvpriCcpBbBzQn5BSZDZoE06JGLEbn[/IMG]

(I've attached a photo but it seems as a new member I'm not allowed to post an external link)
[MTCD Android Head Units General] astobelix:
Hello , can you teach me how do you translate please ?
[MTCD Android Head Units General] bettuccio:
I can not teach you. I did only a little test. It is still working but the problem of the short pup-time remains. I can only tell you what software I used and where to act. You must have an Android phone, an apk translator installed. After you have to install "apk editor pro" it is in the Paly Store. Watch on YouTube how the software works you have to translate the string to: res / values ​​/ strings. Only translate the color blank written entries between the red arrows. Done all, save and then , you have to press on "build" the Save process will begin. Finally, extract the new apk from the Apk editor folder and send it to your car radio. Install it and you're done.
[MTCD Android Head Units General] astobelix:
Ok but how do you extract the APK from the update.img file ?
[MTCD Android Head Units General] bettuccio:
just use" es file manager" with rights to root enabled

or root Explorer . Copy and paste on a USB stick or use share.it and send it directly to your phone. Alternatively you can use "Apk extractor" from the play store to extract it.

Recommendation: it is important to save an original copy of the MtcCanbus.apk file somewhere. Prudence is never too much.
[MTCD Android Head Units General] bettuccio:
Guys, does anyone have any news regarding the android 8 firmware on our PX5? We are already in January by now
[MTCD Android Head Units General] typos1:
Yes its on one of the (4) other RK3368/PX5 threads. No one knows how to install it yet.
[MTCD Android Head Units General] bettuccio:
where is it ? I have not seen yet. But is there already the firmware to be installed? Send me the link please.
[MTCD Android Head Units General] ikerg:
We have the link....but we are not going to share it until figuring out how to install it... normal.procedure does not work....i think the nand needs to be repartitioned for android 8...repartition can be done with rockchip tools...but we need how to use rockchip tools with our unit without touching the hardware.

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[MTCD Android Head Units General] bettuccio:
ah! I understand the difficulty. Do not release until you understand how to install it. Malaysk or SVA will be at work for this? What do you know what innovations are introduced in this new S.O?
[MTCD Android Head Units General] ikerg:
Malaysk ... yes.

Sva...no

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[MTCD Android Head Units General] bettuccio:
Ah OK . I would just like to take a look at the discussion if there is already one. ; )
[MTCD Android Head Units General] typos1:
As I said the discussion thats already taken place is in one the five RK3368/PX5 threads.
[MTCD Android Head Units General] bettuccio:
you would have done before posting the link. I know all the discussions but this still does not. Ok, I'll try. Thank ?
[MTCD Android Head Units General] javlada:
AFAIK, there is no Xposed for Android 7 and 8. So upgrading would break a lot of functions and it will be no improvement IMO. Because of this I suggest to stay with Marshmallow as long as possible.
[MTCD Android Head Units General] astobelix:
Hello today i have change in the factory settings the volume boot and after my steering wheels aren't working , i have try to change the canbus setting but it didn't work , after a reboot the canbus settings are gone ... My unit is updated with the last MTCE ( was an MTCD a month ago ) and the mcu version is MX V27.4_1 , someone know how i can fix that ? Thanks !

---------- Post added at 09:45 ---------- Previous post was at 09:08 ----------

My problem is solved by reflashing the MCU .
[MTCD Android Head Units General] typos1:
There is Xposed for Android 7.
[MTCD Android Head Units General] Oberbergler:
And the developer has already in mid-December announced that it is nearly ready for Android 8 and 8.1 :)

https://www.xda-developers.com/xposed-v89-released-oreo-update/
[MTCD Android Head Units General] javlada:
typos1> Thank you for the information. That is a great news. I didn't check it for a while and last time I did the developers said it takes extremely long to port it to Nougat due to the massive changes in ART. I'm very glad they have sorted it out.
[MTCD Android Head Units General] macca017:
Not to bother, I have found a download location.

Great app, thanks for taking the time to share it with us all.
[MTCD Android Head Units General] alpha247:
Did you add any heatsinks? My issue is exactly the same as the one you were having. i am in the process of buying a fan and some heatsinks. how did you attach the fan? i cant see any hole in the back on the unit for the air flow.
[MTCD Android Head Units General] RomP44:
Hello all,

I bought a MTCE 6.0 PX4, it works fine.

I would like to change the LED color. I can choose between

- "RGB LED" : color are fading

- "RGB G" : fixed green color

- "RGB B" : fixed blue color

- "RGB R" : fixed red color

But I can't find the "element" app to choose exactly the color I want. Where is it ? Maybe not installed ?

Other question: I can't power ON the HU with the power button if my car is not started. Is it normal ?

I would like to be able to listen music even is engine is OFF. But off course, when I stop it, I still want to power off automatically the HU (as today).

Kernel version: 3.10.0 rocky@hctr930 #1019

Build: px5-userdebug 6.0.1 MXC89L user.hct.20170614.164632 test-keys

MCU: MTCE_XRC_V2.72_1
[MTCD Android Head Units General] newell63:
Hello everyone.

on my px5 xtrons audi a4, I have a defect on the screen.

when I turn it on, I have a vertical gray band in the middle.

it leaves after 3/4 minutes and it appears 8 times out of 10, especially when the car radio is cold.

Has anyone ever had this concern?

thanks
[MTCD Android Head Units General] typos1:
PX4 ? You mean RK3368/PX5.

With MAlayk's ROM I think you ahve to power on and off 5 timed with the unit set to RGB in factory settigns before the app will appear.

Whether the car allows the stereo to be turned on with the ignition off depends on the car or the CAN Bus decoder.
[MTCD Android Head Units General] RomP44:
Yes sorry, PX5.

OK, I'll try with RGB and wait several reboots.

I was able to turn on the stereo with ignition off with the stock stereo (Ford 6000 CD).
[MTCD Android Head Units General] SkyBeam2048:
Interesting question. My previous car (manual gearbox) only had off/ignition/run key sequences. The radio was off in "off position" and on in "ignition" position but in "ignition" position even fan and aircon was on so this drains the battery fast.

However I was also able to turn on the radio manually using a hardware button. Though it would automatically switch off after 30 minutes. if no buttons pressed.

Now I have an automatic car with push-button start. When it's off, then I am also unable to turn on my head unit which has only capacitive buttons. When I push the start button once (without pressing the brake pedal) than it goes to ACC mode. The head unit goes on but no aircon or lights. This is basically perfect to listen to music without draining the battery. A second press on the start button enables ignition including ventilation and aircon as well as headlights.

Well with manual cars which just have the choice between ignition on or off, the best option you might have is to install a rocker switch somewhere which allows you to connect the ACC head unit line either to ignition or batt+. This would allow you to turn on the head unit using this switch. With the risk of course to drain your battery if you forget to switch it back to off position.

If you are a bit into electronics you might actually construct a self-resetting switch/relais-control which allows you to switch on the HU for 30 minutes after pressing a button. I have also seen similar timer-switches available on the market. Just as an idea...

If you're really really lucky, then this might just be related to a bad connection on a flat-ribbon cable connecting your screen to the MTCD main board. Perhaps you can open the head unit, power it up on the bench and check if wiggling the cables changes the pattern and make sure all ribbon cables are firmly fit.

If you're unlucky it's about where the ribbon cable is connected to the screen or on driver elements soldered to the flat-flex cable. Or bad capacitor/driver elements. Just guessing.
[MTCD Android Head Units General] m2018:
Dasaita Android 8 is here ??

https://youtu.be/OP0YOJeHJs4
[MTCD Android Head Units General] typos1:
We know, it has been for a few weeks, but we cant get the update working.

Horrid launcher, but good to see its using kernel 4.4.

---------- Post added at 10:37 PM ---------- Previous post was at 10:23 PM ----------

Cars that do allow the stereo on with the ignition off (not all do) usually have it on some delay like this to preserve the battery.
[MTCD Android Head Units General] newell63:
I see, but i can't open unit to test cables without kill guaranty...

I don't know what to do.

For now it's not too bad because it gone after 3/4 minutes but i'm afraid in futur it will stay in get bigger.

No one had same trouble ?

Thanks
[MTCD Android Head Units General] ZeroZorro:
...and that's where i am lost, cause wherever i look (obviously not in the good places) i don't find a 'real' CAN Bus decoder for my Peugeot Expert 2014. It's just Canbus/SWC and that's what i already have. Having said that, it might even not add much but at this point i just wanna know and learn.. ;)
[MTCD Android Head Units General] typos1:
In factory settings there are several CAN Bus decoder manufacturers listed, Raise, Union, Simple etc, I would try and find one for your car by searching.

---------- Post added at 01:14 PM ---------- Previous post was at 01:12 PM ----------

The warranty is worthless, but you can open it without invalidating it - just dont take the top off, take the back and the bottom off.

I think its very unlikely that this is your problem anyway.
[MTCD Android Head Units General] ZeroZorro:
-delete-
[MTCD Android Head Units General] Wadzio:
What do you think about it? Is it possible that so many units are suddenly sold with Android 8.0 Oreo?

Seller on AliExpress: ISUDAR: https://www.aliexpress.com/store/gr...830.html?spm=2114.12010611.0.0.466b3d51yT3LCI
[MTCD Android Head Units General] ikerg:
It is possible...there are several manufacturers which share platform and therefore all will upgrade to 8...there are plenty of sellers that just put their brand...

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