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Thread: Getting a reversing camera to auto start when reversing

  1. #1
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    Getting a reversing camera to auto start when reversing

    Hi all, I'm new here, been browsing around every now and then for a while now though.

    I'm currently working on a Car PC system for my car, right now it plays music, has a GPS with google satelite images, provides a wifi network in my car with GRPS internet access, has a software equalizer, records general things like best 0-100 time, top speed, etc. What I'm working on now is a reversing camera, I've written up the software for it and all and at this very moment I'm getting a webcam drilled into my rear bumper.

    What I'm thinking though, it'll probably never get used because it's too much of a hassle to start up the reversing camera every time I go into reverse. What I'd like to do is start up the camera when I go into reverse gear. From what I've read here, people use the reversing lights to check whether its in reverse or not. Brilliant idea, but how do I implement this with a webcam. I've thought of a bad solution:

    Wire a 12V hard drive to the reversing light and whenever the computer detects the hdd, I know its in reverse - this seems a little messy though.

    What would be convenient is a USB device that reports on a COMM port the current through a circuit. Is there such a device (does the Fusion Brain do this)?

  2. #2
    Constant Bitrate BoyRacer0013's Avatar
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    What about running a relay that connects the +5v wires on the USB cable when the reverse lights are on?

  3. #3
    MySQL Error scott_fx's Avatar
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    Get an mjsgadget USBio1 and wire up the reverse lights to one of its inputs. Then in ride runner you can have that trigger an action

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  4. #4
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    Quote Originally Posted by BoyRacer0013 View Post
    What about running a relay that connects the +5v wires on the USB cable when the reverse lights are on?
    There's an idea, and I can just check if there's a camera installed to know if its in reverse!

  5. #5
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    Quote Originally Posted by BoyRacer0013 View Post
    What about running a relay that connects the +5v wires on the USB cable when the reverse lights are on?
    Actually I just thought, that would make the camera unusable when the car's not in reverse, but I can use the exact same approach with a USB cable and a flash drive, and have my software check whether the flash drive is present (indicating the reversing lights are on).

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