Development of a Car Optimized ROM?

[OrionBG]

Hey guys,

The Mi PAD 4 is the perfect size(in most cases) for a car dash mounting and will be a great replacement for the now very old Nexus 7.
There have been a lot of development over the years of custom ROMs/Kernels that are specifically optimized for such a use scenario.
I for instance am in the process of collecting the needed cable and accessories but since my ROM building knowledge is very limited at best, would be very happy if there are more people here that think this idea is good and somebody builds us the custom ROM/kernel for that.
So lets discuss this.

What we will need are the following main things:

1. Kernel/ROM that is configured for a landscape use.
2. An option to have the device connected to power all the time but not charging (not to kill the battery)
3. An option to turn on the screen automatically on getting power over the USB port and turning of the device after the power is gone (car turned off) (preferably with a delay of some sort)
4. After power is lost to put the tablet in very low power mode by disabling WiFi/LTE/Bluetooth and so on (again configurable) This is to avoid draining the car battery if left for a long time parked.
5. Simultaneous Charging/OTG (this may actually already be possible, but I have still not found an OTG HUB that works properly with the Mi Pad 4)

probably I have forgotten some more things...

Have in mind that all of those I've mentioned above, already have been developed in one form or another for the Nexus 7, so it should be easier than starting from scratch...

 

[mfkomega]

Hey,

i am using my MiPad 4 also in my car. So far it is working fine.
I have connected the MiPad via USB to a carhifi DSP (in my case Helix MiniDSP)

Here are my answers to your points:
1. i am using Evie Launcher in landscape mode.
2. see 5.
3. MiPad is waking up and starts to play music as it detects the DSP on the USB-Port when the car is turned on, and is stopping and turning off when the engine is turned off, this is working with the Pad itself and the app Automate
4. use app Automate to turn off all radios when no USB connection is detected
5. i am not sure if this is related to the hardware of the MiPad or the Kernel, i have tested some CustomRoms but was not able to get it working, so i switched back to preinstalled inofficial international MIUI-Rom

Thanks

 

[Alex2017Germany]

Hehe i also use it in the Car It was also a Replacement for my old Nexus 7 2013.

 

[sara.ramli]

5. i am not sure if this is related to the hardware of the MiPad or the Kernel, i have tested some CustomRoms but was not able to get it working, so i switched back to preinstalled inofficial international MIUI-Rom

Can you please throw some more light on the "preinstalled inofficial international MIUI-Rom" ROM where simultaneous OTG+Charging is working for you? Is this is the fake ROM (as people call it) that vendors install after unlocking the bootloader and then sell it to you?
May be a link to the ROM (if its downloadable) or a screenshot of the ROM information from the tablet, will help.

TIA.

 

[sara.ramli]

Can you please throw some more light on the "preinstalled inofficial international MIUI-Rom" ROM where simultaneous OTG+Charging is working for you? Is this is the fake ROM (as people call it) that vendors install after unlocking the bootloader and then sell it to you?
May be a link to the ROM (if its downloadable) or a screenshot of the ROM information from the tablet, will help.
TIA.

https://forum.xda-developers.com/showpost.php?p=80816927&postcount=11

Now that I was able to make OTG+Charging work with HavocOS, am proceeding to replace the Nexus7 in my car with the Pad. Will let you all know how it goes.

 

[samu95]

I'm also thinking about installing a mi pad 4 into my car. Any news on a good setup and ROM?

 

[sara.ramli]

I'm also thinking about installing a mi pad 4 into my car. Any news on a good setup and ROM?

HavocOs is working great so far in my car setup.

 

[Phoebus89]

Which havoc os rom are you using? I flashed the current build today and otg plus charge doesn't work. It's one or the other.

 

[Nailyouh]

I will next month also run a project for building in my mind in the cars radio mount (2din). So far I found Headunit Reloaded is really cool to have Android car working perfectly! For volume control I use a floating volume button (Virtual Volume Button on Play store).
But the rest I will figure out next month when I get my car finally haha