Mi Pad 2 as an Android Auto head unit - Xiaomi Mi Pad Questions & Answers

Just trying to widen the life of my Mi Pad 2 (LineageOS 13 - Android 6) and refresh my 20 year old car interior and functionality.
Already ordered from AliExpress a tablet holder to mount on the vents and a new battery for the tablet as the existing one is getting faulty. Going to order a USB C 3,5mm jack splitter (Headphones jack + microphone jack) as my car stereo only has 3,5mm jack input (Bluetooth wasn't a cheap feature in 2002 cars!)
My intention is to have the Mi Pad 2 teaming up with my Poco F1 (running stock MIUI Global 12.0.3 - Android 10) through Headunit Reloaded app.
My questions:
Will this work?
Will I be able to connect Android Auto wirelessly and avoid my car being a cables store? (Android Auto page says wireless AA is only available for devices with 11.0). Any custom ROM you reccomend?

Related

Convert old phone into a car stereo

Was looking at creating a android based car stereo using a raspberry pi but then I remembered have a Note 2 I could use. Are there any external touchscreens that are compatible with it? I even have a dock for one which has usb inputs.

DAC\AMP attachment for UTC U11

I'm wondering about buying attachment DAC for U11. It doesn't have mini jack port so I thought to buy sound blaster E5 or Fiio E18. They work over USB port with android. Do you use something like this? What are your thoughts about it?
Sent from my SM-G9200 using Tapatalk
I bought a Fiio K1 which worked well enough, but my headphones have a mic and I couldn't give that up to walk around with extra long wire and dongle dangling from it/I NEVER hold a phone to my ears to talk, yuck, so have sent the DAC back and will just use the USonics in the mean time.
Sound blaster e5
Wondering if any knows if the sound blaster e5 will work with the Htc U11 USB-C port on the USB host connection on the E5?
This is what the manual states with the E5,
# Devices must support Bluetooth V4.1 For AndroidTM device
Phone / tablet running Android 2.3 or higher for Bluetooth
Phone/tabletrunningAndroid4.1orhigher for USBHostAudioStreaming*
* Devices firmware must implement AOA2 protocol that support USB Host Audio Streaming
I haven't got a u11 yet looking to if I can use something like this with it
How about....: https://www.bluewaveaudio.ca APTX and later on O APTX-HD.

Android USB audio output NOT working in my car

Hi People!
Here's the story.
I have a Fiat 500 with a 2015 Fiat original USB radio. It does not support bluetooth audio streaming. Only AUX through 3.5mm jack or USB AUX. Or well, I should buy one of those bluetooth aux dongles.
If I plug an iPhone via USB, I can listen to Spotify though my car hifi with no hassle, using a normal micro USB (+thunderbolt adapter) to USB cable.
I have tried to do the same with 3 android phones:
- Samsung Galaxy S6 NOUGAT stock 7.0 rooted
- Samsung Galaxy S7 OREO stock 8.0 rooted
-Samsung Galaxy S3 NEO Nougat AOSP 7.1.2 rooted
No chances to tell the phone to send the audio through the mini USB port. I am using the same cable that I used for the iPhone, without the thunderbolt adapter, obviously.
My phones are all rooted and I have tried to modify the usb functionality inside the Android developer options. I have also tried an app (Audio Router 2.2 updated on 2018-01-22) that sould force the usb audio routing, but with no luck.
Is there anything I am missing? I have tried android auto but it did not let me add Spotify to the dashboard.

Question USB-C to 3.5mm for car auxiliary port

Hello!
I recently picked up a pixel 6, very happy with it so far except for the fact that my car is too old for the bluetooth to carry music to the radio.
I was wondering if anybody has managed to find a type c to 3.5mm cable that works? I have tried a type c to 3.5mm adaptor and it doesn't work, I think I need a straight type c to 3.5mm cable instead of an adaptor?
Before anybody asks, I have an fm transmiter but not really enjoying the experience between static or the bluetooth getting confused with the car itself.
I don't see why a USB-C to 3.5mm adapter shouldn't work. Try finding one on amazon that specifically advertises use in cars. It could be possible that the one you have is incompatible, manufacturers tend to make adapters that only work in specific circumstances.
You need an active adapter with integrated DAC (digital to analogue converter). Passive ones will not work. You better get the google cable if available. Apple one works but is too quiet in android. In fact any active cable should work.
Thank you both.
I have seen this one on Amazon, this is what I need I guess?
https://www.amazon.co.uk/KOOPAO-Adapter-Headphone-Stereo-Compatible-Grey/dp/B07Z3TRJKS/ref=sr_1_4?crid=VG53YFREW7S7&keywords=Type+C+to+3.5mm+Stereo+Audio+Cable&qid=1641755818&sprefix=type+c+to+3.5mm+stereo+audio+cable%2Caps%2C84&sr=8-4
I use this one:
https://smile.amazon.com/gp/product/B08Y7YXHSB/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
An alternative if you have 12v power in your car is using a USB Bluetooth to 3.5mm device like this one.
Hagibis Bluetooth Receiver Bluetooth 5.0 Adapter Hands-Free Bluetooth Car Kits AUX Audio 3.5mm Jack Stereo Music Wireless Receiver for Car Speaker Home Built-in Microphone (U3-Grey) : Amazon.com.au: Electronics
Hagibis Bluetooth Receiver Bluetooth 5.0 Adapter Hands-Free Bluetooth Car Kits AUX Audio 3.5mm Jack Stereo Music Wireless Receiver for Car Speaker Home Built-in Microphone (U3-Grey) : Amazon.com.au: Electronics
www.amazon.com.au
That way you can still be wireless and have Bluetooth in an older car, without having to deal with those hit or miss radio adaptors
I have this issue since using the Galaxy S21, the way I fixed it, start playing music on the phone speaker, then connect the cable, and it will start working, it happens all the time, that why I bought a cheap Bluetooth receiver from Walmart, best $8 I've spent in years.
cervantesjc said:
I have this issue since using the Galaxy S21, the way I fixed it, start playing music on the phone speaker, then connect the cable, and it will start working, it happens all the time, that why I bought a cheap Bluetooth receiver from Walmart, best $8 I've spent in years.
Click to expand...
Click to collapse
I thought to do the same but the phone shows that the connected device is not supported
neptun2 said:
You need an active adapter with integrated DAC (digital to analogue converter). Passive ones will not work. You better get the google cable if available. Apple one works but is too quiet in android. In fact any active cable should work.
Click to expand...
Click to collapse
Just to clear up what that actually means for OP: a passive adapter will work only on USB-C ports that are able to route an *analog* signal. These are fairly uncommon -- most USB-C ports are digital only.
The nice thing about digital output is that you get to control the sound quality by selecting a USB-DAC of a quality that meets your needs, instead of being limited to whatever cheap thing they built in to the phone.
Physically, you can't even tell the difference any more. While USB-DAC's used to always involve a "big ugly box", the circuitry has shrunk these days to small enough to fit into the ends of the dongle.
The headphone adapter sold by Google is an example of this, its a USB-DAC, but shows no sign of containing any significant components besides the connectors.
I tried one that came with an old Motorola phone and it did not work, but Google sells one. They should be able to confirm if it works before you order it
https://store.google.com/product/usb_c_headphone_adapter?hl=en-US
I've personally tried 3 different ones that have worked for me, the first one was from an old Motorola phone, the second one, was one that I bought at an airport, I believe the brand is Moshi, and the third one was coming from a one plus phone. They all worked by playing on phone speaker and then plugging it.
cervantesjc said:
I've personally tried 3 different ones that have worked for me, the first one was from an old Motorola phone, the second one, was one that I bought at an airport, I believe the brand is Moshi, and the third one was coming from a one plus phone. They all worked by playing on phone speaker and then plugging it.
Click to expand...
Click to collapse
Which Moto phone? My Moto Z(2) Force one gives an error message that the audio device is not supported.
chaimav said:
Which Moto phone? My Moto Z(2) Force one gives an error message that the audio device is not supported.
Click to expand...
Click to collapse
It is the moto Z2 Force, I've used it a couple times, and I had no issues.
cervantesjc said:
It is the moto Z2 Force, I've used it a couple times, and I had no issues.
Click to expand...
Click to collapse
It works on your Pixel 6? Maybe mine is defective??
This discussion is very interesting. Generally pixel 6 (and previous pixels also) do not send analogue audio signal to the usb type c port hence passive converters from type c to 3.5 mm do not work. You need active converter with integrated DAC (digital to analogue converter) in it so that the digital audio from the usb type c port is transformed to analogue signal and sent to the headphones or whatever else. Every phone though has integrated DAC in the chipset because otherwise it would not be able to drive its own speakers with analogue signal. When i tried to connect my passive DAC adapter from oneplus 7 phone i got error on the pixel 6 that cable is not compatible. It is possible if you play something through the speakers analogue signal to also be copied towards the usb type c port and this way to trick passive adapters to also work but this need to be tested. I think that i still have the passive adapter somewhere and will test these days if i find it.
neptun2 said:
This discussion is very interesting. Generally pixel 6 (and previous pixels also) do not send analogue audio signal to the usb type c port hence passive converters from type c to 3.5 mm do not work. You need active converter with integrated DAC (digital to analogue converter) in it so that the digital audio from the usb type c port is transformed to analogue signal and sent to the headphones or whatever else. Every phone though has integrated DAC in the chipset because otherwise it would not be able to drive its own speakers with analogue signal. When i tried to connect my passive DAC adapter from oneplus 7 phone i got error on the pixel 6 that cable is not compatible. It is possible if you play something through the speakers analogue signal to also be copied towards the usb type c port and this way to trick passive adapters to also work but this need to be tested. I think that i still have the passive adapter somewhere and will test these days if i find it.
Click to expand...
Click to collapse
I tried an adapter from a Oneplus 6 (if memory serves) and I had the same problem, hence the thread
Given the one from Google looks just the same I am apprehensive to buy it until I am 100% certain
Today DAC circuits are so small that it is easy to integrate these into the usb type c part of the cable. There is no way to tell if cable is active or passive only by looking at it anymore. Google cable should work fine. Alternatively you can try the trick with first playing through the speakers and then connecting the old oneplus 6 cable and see if that will make it work. ne side note - don't buy the apple usb to 3.5 mm cable. It has very low volume on android (works properly on ios and windows). Tested it myself.
neptun2 said:
This discussion is very interesting. Generally pixel 6 (and previous pixels also) do not send analogue audio signal to the usb type c port hence passive converters from type c to 3.5 mm do not work. You need active converter with integrated DAC (digital to analogue converter) in it so that the digital audio from the usb type c port is transformed to analogue signal and sent to the headphones or whatever else. Every phone though has integrated DAC in the chipset because otherwise it would not be able to drive its own speakers with analogue signal. When i tried to connect my passive DAC adapter from oneplus 7 phone i got error on the pixel 6 that cable is not compatible. It is possible if you play something through the speakers analogue signal to also be copied towards the usb type c port and this way to trick passive adapters to also work but this need to be tested. I think that i still have the passive adapter somewhere and will test these days if i find it.
Click to expand...
Click to collapse
It would need to be physically wired together like that, which it is definitely not.
It would probably also need a second DAC built in, because there are only so many speakers you can drive with the built-in. That's why some phones are advertised as "dual DAC".
Got Pixel 6 usb-c to 3.5 mm one direct from Google...works great.
jelive said:
Got Pixel 6 usb-c to 3.5 mm one direct from Google...works great.
Click to expand...
Click to collapse
Is this for a car aux port or for earphones you use it for?

Question Mi mix 4 USB audio

Hello I would like to see if anyone here could kindly help me. Basically I have a mi mix 4 on miui 13 eu rom I have a usb c cable that connects to 2 pin iems the cable has a dac built into the usb c housing the cable works fine on my old phone but with the mi mix 4 occasionally there is a subtle static sound. My old phone doesnt support passive usb audio so a digital signal gets sent to the dac where it turns into analogue since it works on that phone the cable itself isnt the problem however I know xiaomi phones support passive analogue out the usb to 3.5 mm adapter it comes with doesnt have a dac in it and works fine with earbuds with a 3.5mm jack so I was wondering what I can do to fix this issue could a software update to miui 14 eu rom help or should I try pixel experience? Is there someway to make the phone not detect the external dac and bypass it because id be fine with using the internal dac basically by forcing audio adapter accessory mode. I wish I could find a cable that as usb c to two pin that didnt have a built in dac but it seems like it is such a niche thing. All this to avoid having to use a adapter lol

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