Joying Headunit Video In Problem - Android Head-Units

Hi All,
Have actually really enjoyed the headunit so far, but am using a wireless reverse camera setup. It was recommended to use the video in and just select this when I want to view the camera (because there is no wiring to tell the headunit when the car is in reverse), but not having much luck.
The wireless transmitter/receivers power on and then connect with a blue light, but I'm not sure what to do next, as there doesn't seem to be anywhere to view video in. I found and activated the "Front camera" app assuming that this might show the feed, but when I open it I just get the message that "Driving status. video closed while driving". I'm not sure if this is even the right app to view the feed though, so any help would be much appreciated!

why dont you just use the reverse lights to trigger backup cam

Thanks very much for your reply. The wireless setup I have doesn't have a "back" cable? Which I believe is the trigger to tell the headunit to show the feed for the reverse camera? My setup is currently powered by the reverse lights, but there is nothing to tell the headunit that the car is in reverse (which is why I was recommended to just use the video in and manually turn it on when I'm in reverse)? Having said that, it's my first time doing anything like this, so I really don't know what I'm talking about...

Related

Android 4.4.4 Car Head Unit - Recording Composite Inputs

Hello,
I have been searching a while now on various forums. I have a generic Android stereo for my car. It has multiple RCA in connections. Right now I have my backup camera plugged into one, my front bumper cam plugged into another. Then the last is an AV in which I have nothing connected to at the moment. The unit comes with software that allows me to pull up and watch any of my video IN sources. I was wondering if someone might know of a possibility of an app or some other means to record one or more of the inputs. I would like to use my front bumper cam as sort of a dash cam. It has a perfect field of view and would suit perfectly as a dash cam. Having the ability to record any of the inputs would be an awesome feature. Right now it only seems to detect USB camera inputs for some dash recorder apps I have found on the market. Of course I would be looking for something that has the ability to record from composite/RCA/CVBS in the background. I am currently working trying to convert the composite signal to USB using a converter of sorts. I was just hoping someone here might be able to help with a possibility I have not thought of. Any help would be appreciated. I thank you for any response in advance.
On mine it has a car record app..I'll try finding the apk for you
Much appreciated. Mine too came with some apps. None of them worked correctly. Then after a factory reset, I can no longer even install them.

Android Head Unit, Wifi Reverse Camera

Hi everyone, my first thread here and absolutely new for android world! Was able to configure everything and like it much, just tryed everything without luck about this camera setting so hope you can help me
I bought an android head unit from ebay, all i can say from it is that it has a 10.1” display, works over android 6.0.1 and connects to the vehicle (chrysler) throw a canbus decoder. I think the system is not rooted, but it does something weird, when i try to read and write files throw the diferent directories, some times it let me do it, most of the times not. But as its a head unit i cant do anything more than what i can do when the system is running...
Ok wheres the problem, when i engage reverse gear, the unit detects it and goes to reversing mode were it looks for a video input from camera and after that a “no signal” messege is displayed, but doesnt let me go back or home, it stay there and there is no camera conected by wire, the camera is conected by wifi (i can perfectlly see it throw an app, and i connected it to parking lights so it starts before i reverse and wile im getting the place were i need to park it gets conected automatically).
What i need is to modify parameters on the head unit to open the reversing app in place of going to reverse mode when i engage reverse gear, do you think is yhis posible? If not, at least its ok for me to disable this function, so i can manually open the app, but as i told before, the unit gets the information throw a canbus decoder, so i cant just cut a wire.
Looked for a script or something, found a com.reversecar file but it dosnt let me modify it, i was just able to change “no signal” messege to “[email protected]” haha but nothing else. There is another file throw /sys/modules but i cant copy it to a usb or sd car so i have a back up if i delete it hoping that disables it.
So any ideas?
Thank you very much!!
Pd: A music control widget for apex launcher that can control stock music player (that is the only one that works with steering wheel controls would be great)
I think the idea is death already!! and New one comes to get all solutions!!

Looking for infos on Joying Head Unit for my crazy project :)

Hi All,
I'm about to attempt to upgrade my Harley RoadGlide's radio.
REEAALLLY like the fact that it will be a all-in-one solution (GPS/Radio etc)
Here is the plan:
Joying 8.8" 4gb /32gb Android 8 unit
Adaptor for 1 DIN radio ( Harley factory is a off the wall size more like a 1-1/2 DIN )
Module to retain handlebar controls (Works like a steering one)
Marine amp (with the remote power on a manual switch so I can shut the speakers off)
Bluetooth transmitter to send music to headset if needed
Before anybody points out the obvious, yes I know the unit is not marine grade..
This leads me the my first question:
How much heat does the display generate?
I was thinking on taking the bezel off, wrapping the whole back in vinyl up and over the edge of the glass and then putting the bezel back on. This would seal the display part since there is not reset/mic/pwr holes in the glass..
Mating the display with the body will be thru a custom device with seals to prevent water getting in at the connectors.
As for the "main" body it is pretty much protected being in the fairing. I will need a heatsink/fan but I think it will be ok.
Now on the operational question:
Can a bluetooth headset be connected directly to the unit? (For listening to music)
Any tips/advice?
Anybody ever done this?
Thanks !
Ok.. just ordered the 8.8" single din 4gb model.
Was 25% off. Black Friday sale. What can go wrong ??
Good thing about that model is that it is solid glass.. no reset/mic holes.. should make it easier to weatherproof.
The fun will begin when the unit gets here.
Lots of config/testing to do before I shoehorn that puppy in the bike.
I'll post pics if people are interested.
Been testing a couple of GPS apps on my tablet right now ahead of the integration and so far Sygic and Osmand are the best I found. Following a preplanned route is a must( ie to not deviate from the plan) , so if anybody has insight please point me in the right direction ?
Patiently awaiting the arrival of the unit...
The beast is here!!
Just received my unit ?
Got to say it is very well packaged
Will setup and start the testing soon.
Stoked!!!!!
Update/ Questions
Hi All,
Well.. the testing is going well.
So far i am able to get all my music audio to the Bluetooth headset by using a transmitter connected to the RCA output.
I had to use an external USB power for the dongle because the transmitter is "recognized" as a USB keyboard by Joying
I am using the soft button on the unit to turn the amp on/off when I want to use the headset.
I am able to use ZLink as well to connect the phone to the unit.
To have the headset capability for phone, I need to have the headset paired with the headset first.
Then I connect the phone to the unit using ZLink/Android Auto on 1 USB input
I can use the radio's display to control the phone and make calls.
All audio/mic is done by the headset. Yeah!
Only 1 problem.. The Joying keeps on wanting to connect Bluetooth to the phone.. Pops a request every so often..
Any way of turning this off? Only happens when Zlink is active...
If I connect the radio to the phone, it kicks the headset off...
Any way to disable Bluetooth entirely on the unit?
Unit is now rooted and I have installed JET.
Waiting for my handlebar controls converter in order to test "steering" functions.
Cheers!
Junior_1967 said:
Any way to disable Bluetooth entirely on the unit?
Click to expand...
Click to collapse
Can't you do that from the settings? Simply switch off Bluetooth?
Or is that when Joying keeps nagging to switch on Bluetooth? ("wanting to connect" can mean to connect because BT is active, or first wanting to switch it on and then connect)
I tried..
The Zlink app automatically turns bluetooth on I believe.
The bluetooth is off in my Joying settings.
It only happens when the Zlink window is "active"
So when I first connect I press cancel on my phone when the request comes in.
All good until I minimize the windows then re-activate it. Then another request comes in from the Joying unit...
I tried to disable the bluetooth in the app settings and Zlink refuses to open.
There is no "access to bluetooth" in the Zlink app settings..
Really more of an annoyance then anything else as I can just cancel the request...
Would really be nice to have some decent bluetooth settings on the unit to be able to connect any devices or change settings.
Or have some ZLink settings to not start bluetooth on demand since it's already been taken care of by the headset...
Thanks for the suggestion
Cheers,
Problem solved! Android Auto using headset instead of Radio for audio
Hi have solved the problem of Bluetooth wanting to connect all the time.
Solution: First time the popup comes in on the phone when connecting USB to the radio (I used Headunit Reloaded but ZLink should be the same), accept and enter proper password (0000)
Once connected, on the phone Bluetooth settings change Joying Radio to No Phone, No Media.
The next time it will not ask to connect and won't kick out the other Bluetooth (Headset)
Android Auto has to be in developers mode to not care which Bluetooth it is using:
To enable it, open the Android Auto app on your phone and choose About from the left menu. Tap the About Android Auto header text about 10 times and you'll see a prompt to enable developer options. Accept it, then hit the three-dot Menu button and choose Developer settings-> Application mode "Developer"
On to the next challenge!
Cheers!
This sounds interesting. Any pics on the install?
Yes pics please, what are doing are weather proofing the head unit or are you a fair weather rider

Can’t turn off reverse camera screen

Hi, just installed my new Android HU in my Golf MK5, I have configured everything and it is working great apart from one issue no matter of searching has got me to the solution.
I do not have a reverse camera installed but every time I put the car in reverse it goes to a black screen as it is was there.
As far as I can tell there are 2 usually solutions to this:
1) Turn the option off under ‘Extra Settings’. My particular unit does not have an Extra Settings menu and I have looked at all other settings and there is no option as far as I can see to disable it.
2) Cut the reverse signal wire going into the head unit. My HU takes the original wiring loom from the car with no extra CANBUS. I have checked wiring diagrams there does not appear to be any dedicated wire for the reverse signal.
Can anyone help me get to the bottom of this please? Let me know if you need any more information.
Option 3: Install Backup Camera
FYI You didn't list the HU model so not sure anyone can help you. On my IDoing uis7862 it's in the settings to disable auto switching.
I'm also looking to disable that option in my head unit. Its a 8227l installed on a Peugeot 407.
For now I will keep the camera for another time when I have the budget for it.
You have to identity the REVERSE wire of the wiring harness. You car provides a +12V signal on it as soon as you enter the reverse gear. You can unpin this wire - don't forget to isolate it.
Another approach could be to disable the Android activity which presents the picture of the reverse camera. This can be done via ADB command (Google for it).
It requires to get the package and activity name but I think there are apps in Google PlayStore available which can list the recently started activities.
TorstenH said:
You have to identity the REVERSE wire of the wiring harness. You car provides a +12V signal on it as soon as you enter the reverse gear. You can unpin this wire - don't forget to isolate it.
Another approach could be to disable the Android activity which presents the picture of the reverse camera. This can be done via ADB command (Google for it).
It requires to get the package and activity name but I think there are apps in Google PlayStore available which can list the recently started activities.
Click to expand...
Click to collapse
Thanks! I will look for that. I'm pondering installing a camera, so this solution would be temporary.
marciosilvadesign said:
Thanks! I will look for that. I'm pondering installing a camera, so this solution would be temporary.
Click to expand...
Click to collapse
Then, if I were you, I would not invest time in this issue, because it is not a malfunction for you.

Android K2001N stereo. Rear/reverse camera?

Hi All,
I’ve just bought a toyota voxy 2004, and the original stereo was replaced for an Android K2001N. The stereo is not amazing but.. it does the trick (has Bluetooth to link my phone and listen to spotify music, and that’s all I need)
The car has a Video reverse camera.. but it doesn’t work when going on reverse.. (I mean the screen of the radio doesn’t show up the camera app)
So Not sure if either the camera is deas or not well connected or if it’s just a software/configuration issue.
In the car dealer garage where I bought it they’re telling me that stereo doesn’t have the reverse camera feature/port.. what sounds really weird to me..
they told me I need to replace the stereo and camera if I want to make it work..
What do you think?
Thanks a lot in advance
Marcos
marcos90s said:
Hi All,
I’ve just bought a toyota voxy 2004, and the original stereo was replaced for an Android K2001N. The stereo is not amazing but.. it does the trick (has Bluetooth to link my phone and listen to spotify music, and that’s all I need)
The car has a Video reverse camera.. but it doesn’t work when going on reverse.. (I mean the screen of the radio doesn’t show up the camera app)
So Not sure if either the camera is deas or not well connected or if it’s just a software/configuration issue.
In the car dealer garage where I bought it they’re telling me that stereo doesn’t have the reverse camera feature/port.. what sounds really weird to me..
they told me I need to replace the stereo and camera if I want to make it work..
What do you think?
Thanks a lot in advance
Marcos
Click to expand...
Click to collapse
Based on your story above, it looks like it's just a device configuration problem.
Check the camera cable line, starting from the connector, cable condition, ignition / electricity to the camera itself, is everything in good condition (it would be better if you use a multitester)
From experience in the field that I have encountered, most of the problems are in the car's cable and electrical connections.
that's all. Thank you.
Hi! you can change the parameters...go to Adjust car, Information, factory setup, and you will see where you can enter the Factory Settings, type 1617 and confirm.
Please don not touch nothing more! you can brick the radio android!
Go to "Backcar Setting"
And you can there see various selections, you can set all the possibilities until you get image! If you don't, maybe your camera is broken!
My problem is when i save the changes...it nothing is saved!
With the motor stops i cab see the image but running...nothing appears!
Be Lucky!

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