[Q] Camera supported via usb otg? - Nexus 7 Q&A, Help & Troubleshooting

Wondering if someone can check if a camera is a supported via usb otg on the Nexus 7. Would like to be able to add a camera for switching to the outward facing camera in chat, perhaps as a portable microscope or use it as an inspection tool etc

zoom44 said:
Wondering if someone can check if a camera is a supported via usb otg on the Nexus 7. Would like to be able to add a camera for switching to the outward facing camera in chat, perhaps as a portable microscope or use it as an inspection tool etc
Click to expand...
Click to collapse
That would be amazing! Someone do it, make a 10 dollar app, and you have got my money!

Only problem with this is every camera has different specs so drivers for it would be very difficult.

Related

[Q] Duel Cameras for Non front facing Phones

Just got the new G2 and its a bit disappointing that it doesn't have a front facing camera on it. Now I am looking for a way to do video calling with the use of a Web Camera. It would involve connecting the two devices with a USB Female-Female Adapter and designing an app to use the camera. Does anyone have an idea where to start on something like that?
i guess you have to look into usb host driver, there was one guy doing this with a nexus one i think, just search on youtube there was a video
Once you make the special adapter to trigger your phone into USB host mode (if possible) you will still run into a problem of no driver support for your webcam and no applications capable of using a usb camera.
basically you're SOL for a good while

external webcam

has anyone tried? and will it work?
raindizzle said:
has anyone tried? and will it work?
Click to expand...
Click to collapse
Nothing like that will work without drivers. If you had linux drivers you might be able to make something work, but it would not be plug and play.
ske714 said:
Nothing like that will work without drivers. If you had linux drivers you might be able to make something work, but it would not be plug and play.
Click to expand...
Click to collapse
what about those plug and play webcams with installed drivers on them already? shouldn't that work since it is both windows/linux compatible? just as the same how external hard drives will work with our archos, and that also have drivers installed in them. (both windows/linux compatible also)
raindizzle said:
what about those plug and play webcams with installed drivers on them already? shouldn't that work since it is both windows/linux compatible? just as the same how external hard drives will work with our archos, and that also have drivers installed in them. (both windows/linux compatible also)
Click to expand...
Click to collapse
Ive never seen one, so I don't know for sure. Hopefully someone else will chime in on that. If you have an a70, there is only limited power available from the usb port. 200ma I think. If you try one and it works, be sure and let us know.
raindizzle said:
what about those plug and play webcams with installed drivers on them already? shouldn't that work since it is both windows/linux compatible? just as the same how external hard drives will work with our archos, and that also have drivers installed in them. (both windows/linux compatible also)
Click to expand...
Click to collapse
Just an FYI hard drives and cameras do not usually have drivers installed on them.. For example windows uses a driver called usbstor.sys that usb drives must adhere to in order to work properly. Delete this file and all your lovely USB drives in windows will no longer work unless you installed some crazy 3rd party software..
See here for more info
Ok so I just realized that most apps are drivers within itself (correct?) to run basic functions for a specific hardware like say camera effect apps for the camera. So now here is an idea...since the motorola xoom has a stock camera app implemented on the tablet to run both the front camera and a switch to use the rear camera....wouldn't it be possible as a theory to use a plug and play external usb webcam with the archos tablet and install the motorola xooms camera app instead of the archos camera app to use to switch between the front camera and usb camera (being as a rear camera)?
does anyone know where I can get the motorola xoom camera app to download? I would like to try it myself if I can get a hold of that app and just by a cheapo plug and play cam for 6 bucks if no one else is willing to try it...
raindizzle said:
Ok so I just realized that most apps are drivers within itself (correct?) to run basic functions for a specific hardware like say camera effect apps for the camera. So now here is an idea...since the motorola xoom has a stock camera app implemented on the tablet to run both the front camera and a switch to use the rear camera....wouldn't it be possible as a theory to use a plug and play external usb webcam with the archos tablet and install the motorola xooms camera app instead of the archos camera app to use to switch between the front camera and usb camera (being as a rear camera)?
does anyone know where I can get the motorola xoom camera app to download? I would like to try it myself if I can get a hold of that app and just by a cheapo plug and play cam for 6 bucks if no one else is willing to try it...
Click to expand...
Click to collapse
An app is not a driver. A driver basically is the interface between the hardware and the app. When an app interacts with hardware, it does so through the driver. That way a vendor can build hardware however they want, as long as they provide a driver that conforms to pre-established specifications so that the software provider can access it with standard commands. That's why the idea of a camera with built in drivers doesn't make sense. The software would not know to address the camera through the USB port. It needs a driver to address which would in turn address the hardware. Support for devices like thumb drives is built into the operating system, so you don't need a driver.
As has been pointed out, they don't have drivers preinstalled; rather they use protocols that are supported by the host operating system (Windows, Mac, etc) out of the box. The type of "plug and play" webcams you're talking about rely on the the universal WDM in Windows along with such protocols or frameworks as DirectShow, TWAIN, etc.
The point is, the host OS has to know how to talk to those plug-and-play webcams, not the other way around. So in the case of the Archos tablet, it would have to have the same support baked into it at the driver level. Which it doesn't.
So unless you're going to reverse-engineer those protocols and write your own Android driver, it's not gonna happen.
In the case of the Motorola Xoom camera app (or the camera app for any other device/phone for that matter), it's specifically coded to the camera chip used in that device, and has no chance of working with an external webcam. Just like it wouldn't work for the camera in my Evo phone, or anything else besides the Xoom. The only chance would be if it was a device that used the exact same camera chip hardware, but the chances of that are slim. Even devices made by the same manufacturer, such as the HTC Evo and the HTC Droid Incredible, use two different camera chips and drivers.
But.. if your usb camera is working with opensource linux drivers (like uvc driver) there is a high chance that it will work on android if someone compiles the missing kernel modules (aka drivers) like I did for dvb devices. AND THEN.. someone has to write an extended camera app which supports selecting different cameras
any advancements with this issue?
I have an archos 80 g9 8gb. I want to plug in my Sony video camera using a firwire to USB cable and an USB to micro adapter. I then want to use my tablet to broadcast on ustream.com. I am in a paranormal group, I use a night vision camera, therefore I need to figure out a way to do this. We currently use an apple laptop that constantly needs to be plugged in. Being able to use the tablet for this would a much better solution for a few reasons.
Has anyone found/made any drivers?
Would be really useful this. I'd donate.
I am in a similar boat as a few others here. I want to switch over to an Android tablet in my truck, but it's pretty large and the need of a rear view / back up camera is a must. During my past 48 hoursearch this is the most useful, and encouraging info that I could find. I am not a coder, but those who are can probably work with the source code I found on this site. I hope this helps us all. Maybe with the release of ICS the difficulty usb hosting for webcams won't require that much effort. Have a look
brain.cc.kogakuin.ac.jp/research/usb-e.html

is it possible to add 3rd-party camera to android device?

I have a small camera which is added to my glasses.
I want to customize my android phone (Google Nexus 3) to be able to receive camera stream from this. The distance between them is about 50-80 cm.
Or even I want to move the primary camera in android device to add in my glasses. (extends the wire connect between primary camera and phone to 50-80 cm)
However, I don't have any experiment about it, so can you help me how to do that .
Thank you very much!
I'd like to know too
masterdark116 said:
I have a small camera which is added to my glasses.
I want to customize my android phone (Google Nexus 3) to be able to receive camera stream from this. The distance between them is about 50-80 cm.
Or even I want to move the primary camera in android device to add in my glasses. (extends the wire connect between primary camera and phone to 50-80 cm)
However, I don't have any experiment about it, so can you help me how to do that .
Thank you very much!
Click to expand...
Click to collapse
I'd like to know it too.
---------- Post added at 07:27 PM ---------- Previous post was at 07:19 PM ----------
masterdark116 said:
I have a small camera which is added to my glasses.
I want to customize my android phone (Google Nexus 3) to be able to receive camera stream from this. The distance between them is about 50-80 cm.
Or even I want to move the primary camera in android device to add in my glasses. (extends the wire connect between primary camera and phone to 50-80 cm)
However, I don't have any experiment about it, so can you help me how to do that .
Thank you very much!
Click to expand...
Click to collapse
I'd like to know it too.
are you talking about google glasses?
Similar
No. I just need to connect external camera and smartphone .
Google Glass is too complex as much as I need.
i shut the sheriff but ..
i think it is possible but u need an app and an otg adapter.
or u have to switch off the 2 cams in the phone and android will recognize the 3rd cam.
when i plug in the external cam of an android stick, so android recognize the cam and and i use a cam app so i
can shut photos or record a video.
but the important think is to switch off the 2 cams or u have an app which allowed u to use the 3rd cam.
)
Maybe it is possible to extend the wire of your internal cam, but I think you'll simply have to try it yourself.
Another way could be to add a wifi chip to your glasses and connect via WiFi-Direct to your Android device.
r3zin said:
Maybe it is possible to extend the wire of your internal cam, but I think you'll simply have to try it yourself.
Another way could be to add a wifi chip to your glasses and connect via WiFi-Direct to your Android device.
Click to expand...
Click to collapse
How about a WIFI SD card? Such as the ones from EyeFi.
masterdark116 said:
No. I just need to connect external camera and smartphone .
Google Glass is too complex as much as I need.
Click to expand...
Click to collapse
you mean connect usb otg to the usb port and connect a hd high resolution camera?
yes if you have the usb otg modules loaded. else modprobe and load it.
and then connect the camera.
or let me understand the question more finely.
you wish to replace the camera(s) which are on the system board?
yes that too can be done. you need the camera module and see if your cpu supports it and attach it. you need to do some smd work. which is bitterly complex.
hope this helps.
thanks
-paul
Y not
Sent from my HTC Explorer using xda app-developers app
swaroopg551 said:
Y not
Sent from my HTC Explorer using xda app-developers app
Click to expand...
Click to collapse
you got a working keyboard? whats "Y not" ? makes no head or tail to me. i guess i dont understand this cool one letter language. it helps understand if you type fully. care to take an extra effort? type in fully. else i wont understand.
HOPE THIS REALLY HELPS.
thanks
-paul
masterdark116 said:
I have a small camera which is added to my glasses.
I want to customize my android phone (Google Nexus 3) to be able to receive camera stream from this. The distance between them is about 50-80 cm.
Or even I want to move the primary camera in android device to add in my glasses. (extends the wire connect between primary camera and phone to 50-80 cm)
However, I don't have any experiment about it, so can you help me how to do that .
Thank you very much!
Click to expand...
Click to collapse
First off, you haven't provided enough info on what type of glasses you have. That is what makes the difference. Does these glasses connect to a DVR? Or do they have and internal memory that records and then then you down load it later? The camera in your phone is just that, its a camera. Its the firmware that tells it what to do and what you can do with it. Then you have a GUI that you use to control the camera and its functions.
Now from what I know about those spy camera glasses out there, they are a basic DVR type. Now they may have a wire to dump the memory or they are wireless to a remote dvr. So basically, you will either need to rewrite the firmware for your phone to connect it to the glasses. Or if they are wireless, you will need software to control the glasses. I am going to go out on the Limb and say your are SOL to do what you are doing unless you have made electronic and coding skills.
Reason why is, your glasses are wireless, most likely on a set frequencey in the 2.5ghz range like your WIFI cards. Or they are bluetooth. Which is very rare to find. They then transmit to a receiver that you will have to connect to a computer to dump the files from. Now, by chance tehy are bluetooth enabled, you may be able to sinc them to your phone and would need software to view them. Your best bet is go out and find a new set of glasses that can connect to your phone. Less money and effort then what you want to do. It will only be a few hundred dollars to buy them
TheStrokerace said:
First off, you haven't provided enough info on what type of glasses you have. That is what makes the difference. Does these glasses connect to a DVR? Or do they have and internal memory that records and then then you down load it later? The camera in your phone is just that, its a camera. Its the firmware that tells it what to do and what you can do with it. Then you have a GUI that you use to control the camera and its functions.
Now from what I know about those spy camera glasses out there, they are a basic DVR type. Now they may have a wire to dump the memory or they are wireless to a remote dvr. So basically, you will either need to rewrite the firmware for your phone to connect it to the glasses. Or if they are wireless, you will need software to control the glasses. I am going to go out on the Limb and say your are SOL to do what you are doing unless you have made electronic and coding skills.
Reason why is, your glasses are wireless, most likely on a set frequencey in the 2.5ghz range like your WIFI cards. Or they are bluetooth. Which is very rare to find. They then transmit to a receiver that you will have to connect to a computer to dump the files from. Now, by chance tehy are bluetooth enabled, you may be able to sinc them to your phone and would need software to view them. Your best bet is go out and find a new set of glasses that can connect to your phone. Less money and effort then what you want to do. It will only be a few hundred dollars to buy them
Click to expand...
Click to collapse
i got no clue about google glasses. i dont use'em so i dont know hence i cant comment.
they operate on wireless aka 802.11 abgn? how much power do they hold? i guess its bluetooth. and you got friggin 79 channels in bluetooth. and if i understand properly then you need to scan all 79 channels which is also in 802.11 family. i suspect its bluetooth. 802.11 abgn wins on bandwidth and speed and bluetooth wins on power. each has its own merits and demerits. its upto user to choose. i should not be commenting except usb otg which is what i know or got one usb otg device. but then its not a camera. i sometime connect my buspirate via usb otg.
its awesome to play with buspirate.
i am not of much use here i am afraid i will have to pause. since neither i got google glasses nor do i have a 802.11 abgn camera nor a bluetooth camera.
but its possible with usb otg, thats the only knowledge i got. experienced users feedback is more important than mine. they are more skilled wrt to this, since i got 0 skills on this subject.
please pardon my ignorance.
hope this helps.
thanks
-paul
masterdark116 said:
I have a small camera which is added to my glasses.
I want to customize my android phone (Google Nexus 3) to be able to receive camera stream from this. The distance between them is about 50-80 cm.
Or even I want to move the primary camera in android device to add in my glasses. (extends the wire connect between primary camera and phone to 50-80 cm)
However, I don't have any experiment about it, so can you help me how to do that .
Thank you very much!
Click to expand...
Click to collapse
use wifi dongle on ur camera...

Will multiple external cameras work?

I've been doing a lot of research and am now wondering if it's even possible to attach multiple external cameras to a rooted Nexus 7 (2013 or 2012)? And the next step would be what software (app) to use to display at once?
I've seen plenty of threads where one external back-up camera is added, along with some other attachments. And a few where the Nexus is attached to one webcam.
This is for offroad auto use, in a temporary (on the go) install with the Nexus in a mount. I would like to have multiple permanent external cameras in the front and one in the rear. Four would be great, but even just two would be useful.
I've seen it done with an independent multi display screen, but not on a Nexus 7.
Any ideas or directions to head would be helpful.
Any help, pretty please?
I'm stuck.
Unfortunately, I do not have a way of testing this as I only have one compatible usb webcam. However, I am inclined to think you can do more than one as the device should list them separately. Then, using some app to view the camera (I use Mirror), you should be able to switch between them. I know for Mirror, they are listed as camera 1 and camera 2 though I would imagine that you can add camera 3 and so on. The only issue is I don't know of an app which can display multiple, simultaneous cameras nor record from them. Best I can think of is manually switching between them, one at a time.
If I can get my hands on a second, cheap compatible cam, I'll test this out and post the results. I think you're biggest issue is finding something with multiple camera display.
Sent from my Nexus 7 using xda app-developers app
natesjk said:
Any help, pretty please?
I'm stuck.
Click to expand...
Click to collapse
Technically yes! with every new camera the device would be able to open a new stream at /dev/video* , as long as you have ways to capture it through apps you can. However don't take my word for it as i am equally N00b. Let's wait for the seniors to answer
Thanks for the replies!
I just looked for Mirror app, but there a tons of mirror apps for checking your makeup. Can you tell me more specifically about the app? Who makes it?
When it comes to software and what apps to use, I've figured out different apps work with different usb webcams.
And I have seen some apps that allow you to do 2 webcams. Not sure about a split screen though. Then again, webcam specific apps (only works on 2-3 webcams).
As far as what type of camera?
Usb webcams, check. This is going on my front bumper, and if I could have more than 2, then they will be in the wheel wells. But how easy is it to make a usb webcam weatherproof? I'm sure that's a different forum.
What about CCD cameras? Would it work just the same I if I got a "bnc to usb" converter or a "rca to usb" converter? Then basically hooked the usb converter up to the hub or Nexus?
Can I use this ____ (Google: 4 Channel DVR USB 20 Video Capture Box with Audio) and directly connect it to an OTG-Y cable?
Or do the CCD cameras and the usb webcams produce different video streams (not sure if this is worded correctly)?
Will be keeping an eye on this thread for sure. I just got done with my dash mount and was looking to do the same thing. Mount a camera next to each rock light for when crawling.
Wil Badger said:
Will be keeping an eye on this thread for sure. I just got done with my dash mount and was looking to do the same thing. Mount a camera next to each rock light for when crawling.
Click to expand...
Click to collapse
Well it seems that we are at the same stage of our projects and running into the same questions!
I just mounted the nexus in the Jeep and now I'm wondering if I'm just gonna have to use a single camera on the bumper and nothing else.
I'm still curious if any of the RCA type cameras will work with a usb converter. Has anyone had any success with those?
natesjk said:
Thanks for the replies!
I just looked for Mirror app, but there a tons of mirror apps for checking your makeup. Can you tell me more specifically about the app? Who makes it?
When it comes to software and what apps to use, I've figured out different apps work with different usb webcams.
And I have seen some apps that allow you to do 2 webcams. Not sure about a split screen though. Then again, webcam specific apps (only works on 2-3 webcams).
As far as what type of camera?
Usb webcams, check. This is going on my front bumper, and if I could have more than 2, then they will be in the wheel wells. But how easy is it to make a usb webcam weatherproof? I'm sure that's a different forum.
What about CCD cameras? Would it work just the same I if I got a "bnc to usb" converter or a "rca to usb" converter? Then basically hooked the usb converter up to the hub or Nexus?
Can I use this ____ (Google: 4 Channel DVR USB 20 Video Capture Box with Audio) and directly connect it to an OTG-Y cable?
Or do the CCD cameras and the usb webcams produce different video streams (not sure if this is worded correctly)?
Click to expand...
Click to collapse
While it was apparently designed for make up applications, this app is the best I have found so far in terms of camera rotation, camera selection, and refresh rate. https://play.google.com/store/apps/details?id=com.yuvalluzon.mirror
hi
did you tried "usb camera trial" app of infinitegra? as far as i know the app supports two webcams. i didnt tried it because i have only 1 webcam.
yavuz.
aviola7x7 said:
While it was apparently designed for make up applications, this app is the best I have found so far in terms of camera rotation, camera selection, and refresh rate. https://play.google.com/store/apps/details?id=com.yuvalluzon.mirror
Click to expand...
Click to collapse
hugo_bjk said:
hi
did you tried "usb camera trial" app of infinitegra? as far as i know the app supports two webcams. i didnt tried it because i have only 1 webcam.
yavuz.
Click to expand...
Click to collapse
Thanks, I will try both of these apps!
Posting this so I won't forget and maybe it will help someone else out about hardware of different types of cameras.
RCA type camera - THE EXPENSIVE ROUTE (but already waterproof?)
I did some more digging and found where someone tried the EasyCap with a webcam on a Nexus 7, and it doesn't work. I looked at a bunch on Amazon (other different brands) and they all have a CD with drivers. So that's a no go, unless I could embed the certain driver to a custom Rom (way over my head). The 4 channel EasyCap video grabber says it can only display one at a time though, if it did work.
The only Video Grabbers that work without drivers on Android (that i could find) are these two -
OPR-HD879 UVC USB AV Android Capture Card
FEBON 100 USB CVBS UVC Grabber Card
These aren't that cheap (about $50 and $80 w/o shipping).
There is also a FEBON 188, which is a SDI camera video grabber, and more expensive.
I emailed the guy who makes these, he said they will work with any Nexus that will run a regular usb webcam. He also said they should work with multiple video grabbers plugged into a USB hub, but has never tested it. (the guy said he could make one video grabber card with 4 video inputs that would display to one screen for me though, not sure how much that would cost me)
Multiple video grabbers with multiple security cameras add up fast. So this is quickly becoming the most expensive option.
USB Webcams -
Only a limited supply works with each software app. Or at least that's what the software apps say on the Google Play Store. Is this correct?
I would then need to make it waterproof to mount it outside. Maybe taking it apart and installing it in waterproof housing. But that's not this forum either.
So it seems that the best way (for me) to approach this is...
1) Use multiple security cameras or mini cameras, then scrap the nexus and use a separate video display that will show all the feeds at once.
2) Spend a lot of money on multiple grabber cards, which would be over the cost of a separate monitor.
3) Use multiple or just one USC webcam in a waterproof housing.
Ok, now onto researching more USB webcams.
natesjk said:
Posting this so I won't forget and maybe it will help someone else out about hardware of different types of cameras.
RCA type camera - THE EXPENSIVE ROUTE (but already waterproof?)
I did some more digging and found where someone tried the EasyCap with a webcam on a Nexus 7, and it doesn't work. I looked at a bunch on Amazon (other different brands) and they all have a CD with drivers. So that's a no go, unless I could embed the certain driver to a custom Rom (way over my head). The 4 channel EasyCap video grabber says it can only display one at a time though, if it did work.
The only Video Grabbers that work without drivers on Android (that i could find) are these two -
OPR-HD879 UVC USB AV Android Capture Card
FEBON 100 USB CVBS UVC Grabber Card
These aren't that cheap (about $50 and $80 w/o shipping).
There is also a FEBON 188, which is a SDI camera video grabber, and more expensive.
I emailed the guy who makes these, he said they will work with any Nexus that will run a regular usb webcam. He also said they should work with multiple video grabbers plugged into a USB hub, but has never tested it. (the guy said he could make one video grabber card with 4 video inputs that would display to one screen for me though, not sure how much that would cost me)
Multiple video grabbers with multiple security cameras add up fast. So this is quickly becoming the most expensive option.
USB Webcams -
Only a limited supply works with each software app. Or at least that's what the software apps say on the Google Play Store. Is this correct?
I would then need to make it waterproof to mount it outside. Maybe taking it apart and installing it in waterproof housing. But that's not this forum either.
So it seems that the best way (for me) to approach this is...
1) Use multiple security cameras or mini cameras, then scrap the nexus and use a separate video display that will show all the feeds at once.
2) Spend a lot of money on multiple grabber cards, which would be over the cost of a separate monitor.
3) Use multiple or just one USC webcam in a waterproof housing.
Ok, now onto researching more USB webcams.
Click to expand...
Click to collapse
any succes on this?
hugo_bjk said:
any succes on this?
Click to expand...
Click to collapse
I decided not to spend gobs of money...
I did plastidip a USB webcam, mounted it with a magnet to the inside of my bumper (it views through a slot in the bumper), got a usb extension cable and ran that through the firewall, to a Nexus 7 tablet with a OTG-Y cable (But the OTG-Y cable has seemed to not charge the tablet). Now I just run it direct when I want to use it.
I have tested it out once on the trail and it wasn't helpful. I plan on moving it from the center of the bumper to my passenger wheel well.
The webcam is to the left of the 3 lights in the center of the bumper.
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has anyone had any further success getting multiple cameras to work?
i myself have a rca rear camera installed, using easycap viewer, and also using a android head unit usb camera in conjuntion with the app usb camera by shenyao china in playstore for dashcam, but im having a dam hard time getting them to work in conjunction, as with the usb camera app, i can background record from the front usb camera, but if i then engage reverse, easycap viewer opens but just boot loops, so im now looking for maybe a hardware solution to switch cameras by external means, maybe relays, but im no electrician, and cant find any info if this would be possible, was thinking just using relays of some description to switch the power on an off, when rear camera is initialized relay will cut power to the front camera and vice versa.
Does this sound feesible?? if so what relays would i need?
was looking at some of the auto camera switching relay boxes on aliexpress, but they only accept rca connection, which is no good for my setup, front is usb and rear is rca via easycap, now i could get a rca camera for front, but then i could not use the app on the nexus 7 usb camera to background record ect ect
ive tried defaulting the dashcam to usb camera app , and the rear to easycap viewer, and like said above it just boot loops easycap viewer as the front camera is running in the background, and shows that both cameras connect and disconnect over and over
even thought about 2 easycap devices and usb cameras and i think id be in same boat, boot looping
what is very strange though is that whilst pulling my hair out trying to find a solution, i also have a wifi transmitter for rear camera, this worked poor as a rear cam due to delay/lag, BUT i could have the front camera background recording via usb camera app and also view the rear camera picture with reverse engaged without any conflict, but had to manually open the app for the wifi transmitter (wifiavin) to see the picture, which also was a pain
anyone got any ideas if a hardware solution to my problem will work, and parts and links would be fantastic
moiloon said:
has anyone had any further success getting multiple cameras to work?
i myself have a rca rear camera installed, using easycap viewer, and also using a android head unit usb camera in conjuntion with the app usb camera by shenyao china in playstore for dashcam, but im having a dam hard time getting them to work in conjunction, as with the usb camera app, i can background record from the front usb camera, but if i then engage reverse, easycap viewer opens but just boot loops, so im now looking for maybe a hardware solution to switch cameras by external means, maybe relays, but im no electrician, and cant find any info if this would be possible, was thinking just using relays of some description to switch the power on an off, when rear camera is initialized relay will cut power to the front camera and vice versa.
Does this sound feesible?? if so what relays would i need?
was looking at some of the auto camera switching relay boxes on aliexpress, but they only accept rca connection, which is no good for my setup, front is usb and rear is rca via easycap, now i could get a rca camera for front, but then i could not use the app on the nexus 7 usb camera to background record ect ect
ive tried defaulting the dashcam to usb camera app , and the rear to easycap viewer, and like said above it just boot loops easycap viewer as the front camera is running in the background, and shows that both cameras connect and disconnect over and over
even thought about 2 easycap devices and usb cameras and i think id be in same boat, boot looping
what is very strange though is that whilst pulling my hair out trying to find a solution, i also have a wifi transmitter for rear camera, this worked poor as a rear cam due to delay/lag, BUT i could have the front camera background recording via usb camera app and also view the rear camera picture with reverse engaged without any conflict, but had to manually open the app for the wifi transmitter (wifiavin) to see the picture, which also was a pain
anyone got any ideas if a hardware solution to my problem will work, and parts and links would be fantastic
Click to expand...
Click to collapse
Curious on this as well. Would love the ability to create an app to open to a specific app. Both my USB webcam and frame grabber are treated similarly by the OS, meaning all the same apps can use either camera. However I've noticed my USB webcam takes priority. If I already have it plugged in and hook up the frame grabber, it still opens the camera app right to the previouslyplugged USB webcam.
I too, would rather avoid the relays, but that might be the only way.
already tried the5v relay route, worked on bench great , but not in the real situation in my car install still looping both apps, due I think to the response time of the relays switching from one device to another grrrrrr
i just downloaded from playstore dual usb camera by shenyao china, new app by developer, now I can use this app so long as it its opened 1st after my tablet loads after re awake from sleep, then selecting reverse easycap opens as expected, rear camera is viewable, then after reserse deselected, front camera is reconnected and viewable on the screen with usb dual camera app once more, works flawlessly, but its missing the auto record and send to background ect that the usb camera (not dual camera app) app can do, emailed the developer to ask if these can be added to his new app, as of yet no reply, but my fingers are crossed
edit- just had a reply from the developer and he says hes going to incorporate the missing features from the dual usb camera app, but will take a little time, happy days
I am a bit confused by your comments... you're not implying that you have to interact with the screen to switch between forward/reverse cameras, are you? That would be unacceptable for most people.
What I can tell you is I have a HIGHLY reliable solution using the relays and Tasker. Here's how I have it set up right now:
- Forward-facing/parking camera is always on. USB 2.0 IR webcam.
- When relay has UVC framegrabber/rear-view camera disconnected, Vcam2 brings up forward-facing camera by default.
- When my car hits reverse, I kill vcam2, then re-open (using rcjoycon.) This is as long as it takes for the device to be recognized and pop up with reverse view.
- After I leave reverse, I have a timer relay to wait 5 seconds to kill the framegrabber. At that same time, I kill vcam2. If I was ALREADY in vcam2 before going into reverse, I have tasker re-open the camera. Otherwise, it just falls back to the previously-open app.
It may sound difficult but it's not all that bad. Now, if I could somehow get an app that allowed me to specify a hard-coded camera mapping, I would pay good money for this.
Imagine a tasker-controllable launch of each camera view. I would enjoy this, so I could potentially record all cameras full-time, despite what I choose to view. I have a feeling the tablet would drain awfully quickly while recording, and a dedicated dash cam might be more realistic. I really do like the idea of a hidden dash cam though, that cops/criminals might not notice.
I offset the unavoidable drain on my N7 by using yet another timer circuit. When my car turns off, the tablet stays powered for 30 minutes. I detect the loss of power through my rcjoycon, which tells tasker to go into airplane mode, and gracefully shutdown what it can, then kill the rest, and turn off the screen properly. With this setup, I have no issues. I am considering installing a switch to allow the tablet to have power 24/7 for when I am away for extended periods of time. Since I leave my car on a battery tender during those trips, it could be handy to have potential connectivity to the tablet over Wi-Fi. (Just thinking out loud.)

Using front dashcam with RK3066/RK3188 units???

I just wonder if anyone has setup a front dash camera with RK3066/RF3188 head units. What application do you use to to record video from USB front camera in the background? How do you configure this application to launch automatically on boot and start recording immediately in background?
Thanks.
I have set up some USB cam apps. Right now I'm trying to get composite IN to record, but. So far "CaroO Pro (Dashcam & OBD)" has worked out the best for me. All of the settings you're asking about are easily located and configured in the app. I can have it start with movement/when my car starts/when I tell it to. It also has the option to run in the background. The other feature it has is a floating widget if you like to either see your car information. Or to take you back into the main app. Another nice thing about this app is the it connects to your bluetooth OBD adapter if you have one. Giving you a lot more information if you are looking for that sort of thing. My second choice is "AutoGuard Dash Cam - Blackbox". It does not have as many bells and whistles as CaroO, but it gets the job done. All other apps I have tried have been more of a hassle to use and set up. I would suggest trying free CaroO trial and seeing what you think. I am not sure if this helped at all, but I will be here to answer any other questions if you have them.
Has anyone got this working?
I have an Eonon G2110z head unit running KitKat and am trying to set up a dash cam. I have tried a "video in" camera (which i'd prefer to use) and a usb camera but all the dash cam apps I've tried ( about 10 I think) say they can't find the camera.
Is there any way of telling Android that the video in is where it expects the phone camera to be?
jwonnacott said:
I have an Eonon G2110z head unit running KitKat and am trying to set up a dash cam. I have tried a "video in" camera (which i'd prefer to use) and a usb camera but all the dash cam apps I've tried ( about 10 I think) say they can't find the camera.
Is there any way of telling Android that the video in is where it expects the phone camera to be?
Click to expand...
Click to collapse
My USB camera works perfect and almost all apps recognize it. It's one of those board cams they usually use with Raspberry Pie/Arduino. It seems for the best results to look for a UVC compliant USB camera. I am not an expert in any way with these standards. But they seem to be highly compatible with Linux/Android due to them only needing to run off of a generic driver like thumb drives/external drives.
As for the video in/AV/RCA type, I still have not figured this one out :/
*A not much help rant that can be ignored: I did get an image to show up from my dash cam using a dumb/convoluted way. But it would always freeze. The flow was: micro HDMI on dash cam to standard HDMI to an HDMI digital to analog RCA converter. I have also tried the 2.5mm AV out on the cam to RCA. I think it was the same result, but now that I write this I want to go try again...
Sorry I am not much help. I hope you get this figured out. If you do, I would be forever thankful if you shared your results
I'm currently using Daily Roads with USB camera usually sold with those headunits. Problem with this apk is that it can't save last recoded file (when you switch ignition off). Can you confirm that carO pro saves last file properly?
wigglitz said:
My USB camera works perfect and almost all apps recognize it. It's one of those board cams they usually use with Raspberry Pie/Arduino. It seems for the best results to look for a UVC compliant USB camera. I am not an expert in any way with these standards. But they seem to be highly compatible with Linux/Android due to them only needing to run off of a generic driver like thumb drives/external drives.
As for the video in/AV/RCA type, I still have not figured this one out :/
*A not much help rant that can be ignored: I did get an image to show up from my dash cam using a dumb/convoluted way. But it would always freeze. The flow was: micro HDMI on dash cam to standard HDMI to an HDMI digital to analog RCA converter. I have also tried the 2.5mm AV out on the cam to RCA. I think it was the same result, but now that I write this I want to go try again...
Sorry I am not much help. I hope you get this figured out. If you do, I would be forever thankful if you shared your results
Click to expand...
Click to collapse
Many thanks for this, I'll see if I can grab one of those UVC compliant cameras.
It seems to me that the apps just look for what android presents as the phone camera- maybe the trick is to get android to think that the av is the phone camera?
AV plays perfectly on the screen when I select the video player.
I used the DailyRoads app with a Logitech USB camera with decent success. I had to use another app to auto-launch the DailyRoads app on bootup. The only issue that I had was the camera picture seeming to get too bright or too dark in some situations. Manually stopping and re-recording the video seemed to fix the picture, but this was not ideal.
Since installing my new headunit, I'm going to give some other apps a try to see if the problem lies with software or my camera. Thanks for the suggestion on CaroO, I'll give it a shot.
rudix78 said:
I'm currently using Daily Roads with USB camera usually sold with those headunits. Problem with this apk is that it can't save last recoded file (when you switch ignition off). Can you confirm that carO pro saves last file properly?
Click to expand...
Click to collapse
Sorry for the late reply. I meant to check that night. I tested it twice with car0. Once turning the car off and letting the head unit sleep. Then turning back on right away. And again but let the unit fully power down and boot up. Both times Caro0 saved the videos perfectly fine.
wigglitz said:
I have set up some USB cam apps. Right now I'm trying to get composite IN to record, but. So far "CaroO Pro (Dashcam & OBD)" has worked out the best for me. All of the settings you're asking about are easily located and configured in the app. I can have it start with movement/when my car starts/when I tell it to. It also has the option to run in the background. The other feature it has is a floating widget if you like to either see your car information. Or to take you back into the main app. Another nice thing about this app is the it connects to your bluetooth OBD adapter if you have one. Giving you a lot more information if you are looking for that sort of thing. My second choice is "AutoGuard Dash Cam - Blackbox". It does not have as many bells and whistles as CaroO, but it gets the job done. All other apps I have tried have been more of a hassle to use and set up. I would suggest trying free CaroO trial and seeing what you think. I am not sure if this helped at all, but I will be here to answer any other questions if you have them.
Click to expand...
Click to collapse
That Caro0 app works well but doesn't "Autoload at start-up".
I've installed a basic app that autoloads Caro0. Autostart - No root
In settings menu it only gives me option to save video to internal memory, Anyone any idea how to change from within the app?.
What USB cameras are everyone using? I want to pickup a cheaper one to test and see if I want to run a dash cam.
Sent from my SM-N910V using Tapatalk
shauneco said:
That Caro0 app works well but doesn't "Autoload at start-up".
I've installed a basic app that autoloads Caro0. Autostart - No root
In settings menu it only gives me option to save video to internal memory, Anyone any idea how to change from within the app?.
Click to expand...
Click to collapse
I have no problems getting Caro0 to auto start. It'll open the app back up when my unit boots if that was the last screen I left it on. Or I have the setting checked to auto start once I begin to drive. I will have to look where my files are stored. I remember having issues with this too. I'm pretty sure I have them recording to a flash drive now. I will check.
carbonad said:
What USB cameras are everyone using? I want to pickup a cheaper one to test and see if I want to run a dash cam.
Sent from my SM-N910V using Tapatalk
Click to expand...
Click to collapse
This is the camera I am currently using. I had a friend use their 3D printer to make a case for it. Although, no matter what recording app I use I everything is too dark. It might be just the camera, but I'm looking for a way to make the overall image brighter without being over exposed. I think I'm just going to buy another soon anyways...
Hi guys!
Any luck with AV IN (RCA) video recording from back/rear/reverse camera? I have a Joying rk3188 JY-131 unit but not any look. The device coming with 2 cams, front\DVR is USB with night vision, the rear is analog camera. The front camera is not very good because IR LEDs working continuously and that make the video and picture quality very bad at day light Some suggestions to fix that problem?
I had an android rear view mirror and it can recort simultaneously with front and back cameras. The program is FireEye.apk, i tried to install a different versions at my double din, but no one work.
wigglitz said:
I have no problems getting Caro0 to auto start. It'll open the app back up when my unit boots if that was the last screen I left it on. Or I have the setting checked to auto start once I begin to drive. I will have to look where my files are stored. I remember having issues with this too. I'm pretty sure I have them recording to a flash drive now. I will check.
This is the camera I am currently using. I had a friend use their 3D printer to make a case for it. Although, no matter what recording app I use I everything is too dark. It might be just the camera, but I'm looking for a way to make the overall image brighter without being over exposed. I think I'm just going to buy another soon anyways...
Click to expand...
Click to collapse
Hi wigglitz!
Any progress recording the brightness? I just ordered the same cam for the same purpose...
Could you post an image of your cam housing - or even better post the 3d printer file?
I'm using USB and have mine as a front camera (front grill) for curb stops mainly. My car sits low. Using the default DVR app as well. Works beautifully. Found a weatherproof usb cam specifically for it too, since most dvr cams aren't weatherproof. I love it!
wigglitz said:
I have set up some USB cam apps. Right now I'm trying to get composite IN to record, but. So far "CaroO Pro (Dashcam & OBD)" has worked out the best for me. All of the settings you're asking about are easily located and configured in the app. I can have it start with movement/when my car starts/when I tell it to. It also has the option to run in the background. The other feature it has is a floating widget if you like to either see your car information. Or to take you back into the main app. Another nice thing about this app is the it connects to your bluetooth OBD adapter if you have one. Giving you a lot more information if you are looking for that sort of thing. My second choice is "AutoGuard Dash Cam - Blackbox". It does not have as many bells and whistles as CaroO, but it gets the job done. All other apps I have tried have been more of a hassle to use and set up. I would suggest trying free CaroO trial and seeing what you think. I am not sure if this helped at all, but I will be here to answer any other questions if you have them.
Click to expand...
Click to collapse
Any luck on a dvr function on the composite in yet?
I got a cam connected to it. When I select the AVIN on malaysk rom. I get the image of the front camera. But I am not able to use it for a DVR so far.
Did you have any luck?
Priknr1 said:
Any luck on a dvr function on the composite in yet?
I got a cam connected to it. When I select the AVIN on malaysk rom. I get the image of the front camera. But I am not able to use it for a DVR so far.
Did you have any luck?
Click to expand...
Click to collapse
No luck sorry :/
The cam I wanted to use for this kinda died and I gave up searching for a solution after that.
I like the one that carjoying sells. I did not buy from them but have the same model.
https://www.carjoying.com/car-accessories/dvr-camera.html
It works great to attach to the back of your rear view mirror because of the shape of the body. I have mind there and the wires go up into the trim and you can't even see that it is there.
nixfu said:
I like the one that carjoying sells. I did not buy from them but have the same model.
https://www.carjoying.com/car-accessories/dvr-camera.html
It works great to attach to the back of your rear view mirror because of the shape of the body. I have mind there and the wires go up into the trim and you can't even see that it is there.
Click to expand...
Click to collapse
I installed that camera on my pumpkin 5.1 and I lost the audio in the Music app and Pandora. I installed the app IONROAD and that did not work well it keeps crashing because for reason it requires internet to work. I'll try this specific one from Pumpkin to see how it goes. http://www.ebay.com/itm/311374450638?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
I'll take a look on that app for the DVR recording Caro.
llaugerm said:
I installed that camera on my pumpkin 5.1 and I lost the audio in the Music app and Pandora. I installed the app IONROAD and that did not work well it keeps crashing because for reason it requires internet to work. I'll try this specific one from Pumpkin to see how it goes. http://www.ebay.com/itm/311374450638?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
I'll take a look on that app for the DVR recording Caro.
Click to expand...
Click to collapse
Bump
I connected a Logitech C910 webcam to my head unit instead of the crappy low-res camera that came with the unit.
Now I'm trying to find a decent app that will record in HD and save the files to an external SD card.
Autoboy works great, great video quality, but doesn't give me the option to record to the SD card, therefore it's useless for me.
CaroO doesn't seem to work at all with the C910, it connects to the OBD, but doesn't show the video (failed to initialize)
The stock Car Record app saves to the SD card, and sees the C910, but doesn't record in HD
Any suggestion for an app that will do what I want?

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