[Q] Pairing Tablet as Bluetooth Receiver? - General Questions and Answers

This topic is pasted all over the net and it doesn't seem to be getting much attention, however I think it should be brought to a better light.
The idea is simple: Enable your Android Phone or Tablet to become a bluetooth reciever(to replace a headset or bluetooth speakers) and broadcast audio to the device and broadcast microphone from the device.
This could be used in several different applications:
1. Using an Android Tablet as a Car Stereo Interface
(Connect Phone to Tablet Via Bluetooth and use it as a hands free speakerphone, or aux out to your stereo)
2. Multiple Android Phones
(Have a business and personal phone? Answer all your calls from one.)
3. Phone or Tablet as Bluetooth Speaker/Mic
(Skype, PS3, Xbox 360, TV, Google Voice)
I would use several of these options on a daily basis, and would most definitely pay good money for an app like this.
So my questions are:
1. Is this possible?
2. If it is, how hard would it be?
3. If it isn't that hard, why hasn't someone done it yet!?
Bump if you want this too!

Just wanted to bump this because we need to put our heads together here and get this done. I need this capability for number 1 on your list of potential uses. I also would pay good money for an app that enabled this. Phones and tablet are rooted and ready to modify whatever is needed. Ii've bumped a couple other threads today as well.

I would also pay for this!

I have been looking for this for a while. I use an old LG Eve in my car and my Captivate's Wifi connection for GPS but I would love to have it work for calls and music too.
I would pay as well.

bumping this just to say that I'm going to research the rules and process for starting a bounty. obviously the smart people we need to work on this need motivation lol
Sent from my GT-P6210 using XDA Premium HD app

Hi there,
just wanted to leave an incentive kind of post to say that I've also been looking for exactly the same thing.
My hunting on Google play just stopped after finding this post on XDA.
It's a kind of confirmation that there isn't a solution yet.
Since our rooted androids are more than capable of acting as a Bluetooth receiver, whether they may be based on new or older hardware, this seams like a very logical step in their lifecycle instead of getting forgotten in a drawer full of old and unused electronic waste.
Some doubts:
is a2dp required for this?
Is a2dp hardware related or simply a software feature?
Personally, I could live with a simple one way communication from a phone with mobile network (sender ) to the receiver. The used mic could still be the one on the sender side.
Wouldn't even need to have the receiver in a visible place as I would just connect a stereo cable from its headset output to an aux input on a hifi or a car stereo to hear music or acting as a hands-free system.
Hope this gets some real attention.
Cheers

In one year, nobody found a solution??

I can't beleive there is STILL no progress on this. Maybe I'll try asking a dev that has made similar apps the feasibility of this. There are so many practical uses for this that I cannot beleive no one has capitalized on it.

This would be a killer app if done right. Who here doesn't have an old phone laying around gathering dust? This could start off small; simply enabling the phone/tablet to be essentially a Bluetooth speaker, but then gain features and an interface using A2DP, which would evolve it into a killer way to make any car (with at least a tape deck) able to have full Bluetooth integration and control. I really hope someone can do this!

Bump

Bkb -> p -> PC (either wifi/blu/usb)
yeah so a spare bluetooth phone that connects between a keyboard and PC. Acting like a BT dongle. No way I'm spending 10 bucks for that. if an app...maybe a buck but would prefer free.

looking for this too. Wanting to turn this old phone into a bt audio receiver

Wow, endless searching and now this thread and still nothing :/ i need it for the first idea you listed, did you ever find something?

https://android.googlesource.com/pl.../java/android/bluetooth/BluetoothHeadset.java

Currently the Android Car Multimedia receives Bluetooth Stereo Audio from Phones (Andoird/Apple), how they do it?

Any news?

So many years and still nothing?

May be this is not the right way to do.

I know this is a crazy old subject but others have commented so I don't feel so bad.
I want to make my own android system for my car. I have everything I need for it (hardware/software-wise) except for this one thing.
A few years back there used to be an app called Tablet Talk, it's not exactly what we want but I'm still willing to settle for something like that. The way it works is phone->tablet->handsfree Bluetooth speaker. You could make and receive calls (including seeing the contact names/phone numbers on the tablet) from the tablet itself, then the audio/microphone goes to the handsfree device. Another added feature was when a call is happening the app stops all audio coming from the tablet until the call is done.
Like I said before, it's not perfect but at this point, I don't ever see it happening any other way. I found the app a few days ago, it doesn't exist on the app store anymore, unfortunately, I could get it to run. It just kept crashing.
If anyone knows of something then please let us know.

Years later, found just this thread: I want to do similar thing: Use a private phone (for my sake rooted with custom fw) as a hands-free bt device with an unrooted business phone (non-rooted and secure managed with company tool). I also don't want call forwarding or similar. Just do and answer calls, use phone book and call list via bluetooth like my car radio do for years.
Is there still no solution?

Related

A2DP Connect - Multiple devices

Ok, perhaps this exists already and I'm just blind to it-
I'm trying to find a way to make initiating an A2DP connection between multiple headsets easier.
No, I don't mean at the same time- My goal is perfectly rational and rather simple: I have multiple A2DP receivers (headset, home stereo receiver, 2 car stereos), and I want a simple way to connect to them from the phone.
Normally, one has to click through a staggering number of screens to accomplish this.
Start-Settings-Communication-Bluetooth, select headset, press-and-hold for context menu, hit "Use as wireless stereo". This should be a much simpler process, especially since standard feature phones can do this in a few clicks.
I thought that perhaps A2DP Toggle was the answer, since it claims to be able to toggle A2DP/Speaker from the today screen.
The problem is, A2DPToggle only supports one headset.
In other words, it only reconnects to the last device it was used with. If I just used BT Stereo in my car, when I get my wireless headphones and hit the Toggle, it will sit trying to connect to my car instead of finding my heaphones.
Eventually it will give up and timeout.
What I want is an app that is easily accessible that will either A) display a selection of previously paired headsets that the user can pick from, or B)cycle through a list of headsets, trying to find one that is nearby and on (I understand that this may prove more complicated and less reliable than option A).
That being said, is there an app that does this, or something similar, already? If not, anyone want to help me develop one?
Moved to Q&A
why don't you suggest this option to the creator of A2DP Toggle.. maybe he'll add it.
I've tried already, mentioned it a while back and got a "maybe in the future" sort of response. I posted on his thread again a couple of days ago, and started this thread in case he's still not interested.
I'm honestly pretty surprised no one else was interested in this before me- am I the only person who has more than one a2dp receiver paired with his phone???
I don't use it at all.. but I can see why someone would
as it seems nothing like this exists.. maybe you can change the thread's subject to [REQ] to request an application.. maybe another developer would like to work on this.. tho.. sometimes people demand some money for it.

Android as bluetooth headset and/or headphones

Hi All,
Is there a way to make my Android phone (whatever it is) as an bluetooth headphone/headset?
I'll try to explain it in other words. I want for example route all my PC AUDIO STREAM (IN/OUT) to my Android via Bluetooth and manage it from Android.
So the end configuration would be an Android as an headset able to stream the audio from Android's Mic to my PC and to receive an audio from PC.
Same thing as between two Android Phones.
I mean, when i'm receiving a call, it would be nice to forward that call to another Android phone via bluetooth because the other Android phone will be like a Bluetooth headset.
I'll really appreciate all kind of suggestions.
Thanks
Francesco
i was actually thinking of the same idea last night..but i couldnt find any app that could stream audio from my pc to the phone..
may be i didnt searched enough?
I am also searching for something like this.
Did you find an app that could do it?
I did some searching both online and in the market myself and couldn't find anything related to these purposes. I would like an app for this so that I can lay in bed and watch a movie without disturbing others with the audio. I could just listen to headphones through my Droid X.
The most likely software developer to develop something like this, and has yet to make any smartphone appearances is Soundflower. I love Soundflower on my mac and it makes so much sense that they would develop an app for something like this.
i'm looking for app that will enable my phone to call(and make conversations) trough other phone via bluetooth.did anybody come across such app?
Hi, digging up, I was looking for this kind of feature to watch movies fullscreen VLC on my desktop computer from my bed, without having to buy meters of extra headphone cable or a wireless headphones.
I came accross Jamcast which uses wifi network instead, but it's much too complicated, laggy, and expensive shareware.
Bluetooth is the way to go, but we need to be able to use android as a bluetooth headset.
Anyone got news ?
I'm also interested with doing this. Found any app for this purpose?
I've searched for a while, and found none.
BUMP. this could save me from buying expensive headset which can't even last 1 day!!!
Someone custom-implemented the needed Bluetooth role
It looks like some Android device has custom implementations of both A2DP sink role and HFP hands free unit role. I can't post links yet. Google this:
AllGo Systems Demonstrates Android Based Automotive Infotainment Solutions with Fast Boot-up as a Critical Feature at SAE Convergence 2012 - Detroit, Michigan, USA

How many BT Devices have you connected?

Hi Folks...Been a while. Decided to dig the G-Tab out of the mess on my desk and build a car-tablet.
Question - how many BT devices can this thing talk to?
hoping for
- TomTom GPS reciever
- Audio Link
- OBDII CAN Transmitter
no keyboards or mice though!
Hopefully everything will be in next week, so i can start playing around
I can positively confirm that i can use my bluetooth GPS, which is an off china brand. I had to download the bluetooth gps app, which is free, and must be started before you run a NAV app. I can also positively confirm that the bluetooth chinamade OBDII scanners work as well, at least with torque, the best app EVER! I have even gotten an old usb obdII scanner to work, but it is unstable. I cannot help you with any audio stuff, I have tried forever to find an app that would use my gtab as a handsfree bluetooth receiver for my phone, but have not found one.
THis app:
https://play.google.com/store/apps/...wxLDEsImNvbS5mdW5reWFuZHJvaWQucGhvbmVsaW5rIl0.
THis will let you make calls and send texts from your tablet and must be installed on your phone and tablet. So, if you have a handsfree bluetooth headset for your phone, you can use your tablet to dial out then just put on the headset to talk.
There is also an app called tablet talk, which I have not yet tried because I dont wanna pay for it, but this app will send the CALLER ID info from your phone to your tablet when a call comes in.
For audio, if you can find no suitable app, then look at this. I am getting one, or something like it, Im sure it'll work.
http://www.ebay.com/itm/New-Univers...-Adapter-Transmitter-/140750446552#vi-content

Siri Eyes Free Proxy for Android - Does it exist?

For those of you that haven't heard, Siri Eyes Free is Apple's iPhone intergration with select Honda and Chevy cars.
What happens is that the car's interior microphone and the steering wheel voice button both act as a proxy to funnel input to the phone over bluetooth.
Did anyone hack together an Android app to work with iOS's input api? All I really want is to send text messages / initiate calls using google now voice.
I could get an iphone for testing. I have a laptop and a phone with bluetooth, if those can record the raw bluetooth signal
I picked up a car that has Siri Eyes Free (after a firmware update) and have an Android so I'm bumping this .
Nearly a year later I'll bump this as well. Any ideas here? Just moved from an iPhone and lack of voice integration over Bluetooth is a bummer. Thanks.
A
Another bump on this for visbility and hopefully some additional useful information. Long story made short I recently got a new car, a Ford C-Max with MyFord Touch, that has Siri Eyes Free capability (as of v 3.6/3.8). Sadly the car I upgraded from had a cheap <$100 aftermarket radio that happily activated Google Now through the standard BT voice dial button and allowed me full hands free functionality and would like to get that back.
What I have found upon a little digging is Apple has published developer documentation which covers Eyes Free functionality:
https://developer.apple.com/hardwaredrivers/BluetoothDesignGuidelines.pdf
As someone who can somewhat understand and comprehend this information but couldn't code to save his life, it appears to be fairly simplistic and is just a handful of custom BT serial commands, simple back and forth request/acknowledge commands, and an SCO audio link. Most of the user interface setup seems like it may be on the accessory/head unit end rather than the phone.
I would love to take a whack at this but unfortunately would not know where to begin. My first thought is would something like this with the serial BT communication, establishing an audio link, and triggering Google Now, be able to all be done without root?
If anyone begins on this or also wants to have a go at it, I'd definitely be willing to help where I can including testing and debugging.

Help using a tablet together with a phone in a car

Hello!
I hope getting some help & ideas for a new idea I'm trying to use in my car.
I have an old Volvo, with next to no modern entertainment options, meaning a factory built-in radio (neither DIN nor Double-DIN), with no bluetooth or anything fancy. A good radio with a really good sound and equalizer (DolbySorround), but that's it. And a seperate navigation system with no online connectivity or recent updates what so ever (last update is from 2014 for a nice 300.-€).
My idea would be:
Tablet (in my case a Fire HD8, unlocked, rooted and with LineageOS 14)
Phone (Xiaomi Mi Mix2, as well with LineageOS, but LOS16)
Bluetooth receiver from Aukey (that I can wire in with the equalizer)
So far, so good. But here comes the problem:
I want to do some things on the tablet, like navigation, music streaming and calls. Is it possible, to connect phone and tablet in a way, I could start the music (Amazon, Google and my own Nextcloud) from the tablet, where in reality the phone makes the connection and "sends" the sound to the tablet (and from there the tablet to the BT audio receiver) or directly to the BT audio receiver, as long as I can control that from the tablet. Or the navigation (tablet) can use the internet connection from the phone. And last thing, I want to make or receive calls on the phone, but I would like to control that from the tablet as well.
I think you get the idea, what I'm trying to do here.
I'm really not sure how to start, the hardware is already here, but I'm willing to buy other stuff, as long as it works afterwards.
Any ideas or input is very welcome, I'm a little stuck here. Thanks a lot in advance!

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