[Q] Reverse camera help for nexus 7 car mount. - Nexus 7 Q&A, Help & Troubleshooting

Hello guys,
I have externally mounted my Nexus 7 in my car. I have Timrs USB rom and it works great. Setup tasker for power on and off and I have the music, wifi tethering etc.
I want to put a reverse camera to this. Can someone tell me how exactly I can do this? Since I'm already wifi tethering from my phone I have to do a wired connection for camera.
What are some of the camera's supported and how can I do this?
Thanks.

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[Q] Nexus 7 as monitor for rear camera view ?

Sometimes I use my Nexus 7 as a GPS in the car, I was wondering, if I was to get a rear view camera installed on the car is it possible to connect it to the Nexus 7 so would have a video monitor when I back up ?
I think its possible. Over at some other board team drh had a USB webcam working on the gtablet but that was for ICS and the tablet had a normal USB 2.0 in it.

[Q] How do I get the Nexus 7 to work as a car Bluetooth phone?

So I have my car set up as a Wifi hotspot thanks to my work-provided cellphone.
I'd like to use my personal Nexus 7, Wifi tethered to my work cellphone, to make phone calls.
Can anyone provide any suggestions? I've tried using GrooveIP, and it will play incoming call audio through my car's speakers, but it appears to only use the Nexus's internal mic rather than the car's mic.
Thanks for any tips!
What exactly are you trying to connect to, the car or your mobile phone's hotspot? Is it your car or phone that has mobile hot spot? and if so, does it support infrastructure or adhoc wireless tethering? Need more information before I can try to find a work around for you.
In most cases, if you have a Wifi hotspot you should be able to connect just as you would to your home network. Sometimes adhoc wifi networks aren't support by certain devices, such as the first gen Kindle Fire tablet.
Edit: Reread your post, it's impossible. The car's Bluetooth won't recognize the Nexus 7 as a phone, it sees it as it is, a tablet. It would be like trying to connect a Bluetooth capable keyboard to your car, the car doesn't understand why it needs a keyboard, so it doesn't tether. There may be a work-around to this issue, but I know little about Bluetooth tethering. That work-around may require root access on your Nexus 7.
Sent from my Nexus 7 using xda app-developers app
There are certain profiles a car's Bluetooth receiver will work with. For hands free calling, it is HFP. Since your Nexus 7 is not a mobile phone, it will not have this profile for the car to communicate with. However, the tablet can be connected to stream BT audio, hence why you can get the audio through the car's speakers but not have the mic working.
kvn101 said:
What exactly are you trying to connect to, the car or your mobile phone's hotspot? Is it your car or phone that has mobile hot spot? and if so, does it support infrastructure or adhoc wireless tethering? Need more information before I can try to find a work around for you.
In most cases, if you have a Wifi hotspot you should be able to connect just as you would to your home network. Sometimes adhoc wifi networks aren't support by certain devices, such as the first gen Kindle Fire tablet.
Edit: Reread your post, it's impossible. The car's Bluetooth won't recognize the Nexus 7 as a phone, it sees it as it is, a tablet. It would be like trying to connect a Bluetooth capable keyboard to your car, the car doesn't understand why it needs a keyboard, so it doesn't tether. There may be a work-around to this issue, but I know little about Bluetooth tethering. That work-around may require root access on your Nexus 7.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Sorry - I want it to connect to the car. But, as Asus_USA says, that might not be possible with a tablet...

[Q] [HELP] Nexus 7 3g bluetooth tethering (as a host) to another android device

[Q] [HELP] Nexus 7 3g bluetooth tethering (as a host) to another android device
Dear all
I have got two devices:
Nexus 7 3g (2012), system 4.4 KRT16S, and it is rooted and as taughted by a post in this forum, I flashed a zip file to enable WIFI and bluetooth tethering.
Another device is Nexus 5
I want to make N7 as a host or say modem to share its internet connection to N5.
I want to use bluetooth tethering because it saves battery. What I did is paired N7 and N5, and on N7 in "settings"-"Tethering and hotspot", I enabled bluetooth tethering.
But on N5, in bluetooth, I click paired Nesus 7 icon, there is no profile icon, and no use for internet access check box.
Does any one how to make it work?
I know how to use a phone as host and let N7 to access internet via phone. It works well. But I really need to make N7 as a host and use bluetooth tethering.
Thank you very much!
Please help.
Has anyone successfully did this? Thanks a lot!
I also tried with another device, after paired with nexus 7, it also cannot see bluetooth profile where we can enable internet sharing.
sai21 said:
I also tried with another device, after paired with nexus 7, it also cannot see bluetooth profile where we can enable internet sharing.
Click to expand...
Click to collapse
Does anyone know how to do this? Thank you very much.

Nexus 7 car install help please.

Hi Guys,
I have mounted a Nexus 7 (rooted First gen) to my car dashboard. It was a outside mount using a magnetic CD mount. I have connected the usb cable to power up the tablet and using tasker to automate things. I'm using my Xperia Z2 wifi hotspot to tether internet to nexus and It's all working fine. I want to explore the possibility of adding a backup camera now. Done a lot of research but not much information. I want to forget about wifi cameras as I cant have them with my hotspot cause I can only do one device. I'm trying to see if I can use a wired connection. I want to power the camera at all times when the ignition/engine is on so I can wire it to rear lights no problem.
I saw this video and I'm quite intrigued by this;
watch?v=V-gLrqUHATQ
This is my plan;
- Get a cheap camera backup camera (seen in the above video)
- Buy a UVC video grabber to connect everything.
- Have the app installed.
The camera will power on as soon as car is ignited and will remain on all the time.
My questions;
1. Where can I get a UVC video grabber that will work with my nexus 7 (First gen) the one shown in the TY video is a second gen nexus?
2. How can I connect both my charging usb and UVC usb at the same time? Will it work with a OTG cable?
3. How can I make the app to launch the video window when my car goes into reverse? I was thinking about wiring the power to reverse lights first and then when it powers up somehow get the camera app to auto launch and then close when its powered off. But I think it will be difficult with 2 usb cables and there will be a lag? Any way to automate this with tasker?
Thanks for your advice :cyclops:
hi
i think your backup cam will be connected to the reverse gear lights. it will work when the gear is reverse. so you can use carcam app. it popups when it receives a video signal and closes when the signal ends.
or i think tasker has an option under profile/state/hardware/usb connected/video that detetcs usb video devices when connected. but i am not sure that it will detect the uvc video grabber.

USB stream work - help?

Hey guys,
I am currently developing my school project application, but I am kinda stuck.
I would like to connect my phone to my car through USB cable and recieve car's data, like RPMs and so.
I have the OBD cable and the reduction as well.
I have found this lib: https://github.com/pires/obd-java-api
I would like to use it, but it is intended to be used with BT.
Is there anybody who could help me achieve what I want to do? I want to know how to do pooling with USB so I can get car's data in realtime.
I can pay some little money if you wish too.
Thanks.

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