Proof of concept.
Relay Breaks the Red(power) wire in the USB ext. cable. The software (USB Webcamera Pro) senses the break and closing of the relay as
connection of a USB Camera and switches table display to camera output. The trigger wire for the relay should be connected to the reverse light circuit of your vehicle.
If I get a warm day, I’ll get this installed and make another video.
Thanks to Craig Brugger for the idea and the USB software recomendation. https://youtu.be/yEfu4n1RAu4
Materials:
Xplore RangerX tablet
Logitech C270 USB WebCam
16′ USB Ext. Cable
12 Automaotive Relay
Software:
https://play.google.com/store/apps/details?id=com.serenegiant.usbwebcamerapro&hl=en
https://play.google.com/store/apps/details?id=com.nezdroid.cardashdroid&hl=en
source
I know this is 2+ years old. Hope you don't mind a few quick questions.
I want to be sure of this. It seems you use the reverse light to close a relay. That relay is what sends power to the webcam via the USB cable. Light comes on, closes relay, which closes the other side of the relay letting power from the monitoring device go to the webcam, which then triggers the software. All of that correct? Just need to find the power wire in a USB cord. Time to get out the multi tester.
Did you, and if so, how did you mirror the image so that the left side of the camera (capturing the right side of the view) shows up on the left side of the screen? Was it just done by camera placement? Is mirror image available in the software?
You don't use any video capture adapter
This is really cool and simple concept,wondering is there any free apps,that woud turn on camera screen on tablet when camera connected,think gonna do this for my mercedes.
Please, diagrama conexión
Hi, The image on the tablet screen are automatically transferred how ?
Hi sir when we put cable for cam in tab then how we charge tab if we have no extra port in tab
can u please give more details on how it will avtivate tha cam itself when we put in reverse?? is there any app for this??
anyone here who's managed to decode circuit diagram for this particular project? for what i'm curious that 12v will fry both the tablet and webcam…..
What APP did you use ? I've been trying a similar set up but using a Pyle back up camera.
Sorry, I did say brake pedal, I meant , "putting car in reverse". See my follow up video for this.
Shady, I beleive I said reverse light, not brake lights.
Hi, @davkenrem you say that the camera powers on when break lights turn on rite ? what to do if i just push the breaks to slow down the vehicle and if the cam turn's on ?
Sibi Babu: The 12v power only ru s through the relay, never interacts with the tablet or camera.Billy Grow:Thistablet is charged through a docking station, you could achive thesame thing with an OTG cable and usb hub.
How do you have you car charge the tablet if the camera is occupying the USB slot? If you suggest wireless charging, what about tablets without wireless charging? Would a USB "Y" or splitter cable work to solve this problem?
I really like this idea but I'm curious of one thing.. What if it rains, I don't think those webcams are waterproof, right..??
could you give more detail about how to wire the the wires into the relay
I dont understand if the camera need an external alimentation for work or if it work directly raccorded to the tablet ?