Meadow.Foundation.Sensors.Camera.Vc0706

Vc0706
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Vc0706 camera;

//Uses SimpleJpegDecoder package for jpeg decoding
public MeadowApp()
{
    Console.WriteLine("Initialize hardware...");

    camera = new Vc0706(Device, Device.SerialPortNames.Com4, 38400);

    camera.SetImageSize(Vc0706.ImageSize._320x240);
    Console.WriteLine($"Image size is {camera.GetImageSize()}");

    camera.TakePicture();

    uint frameLen = camera.GetFrameLength();
    Console.WriteLine($"Frame length: {frameLen}");

    byte bytesToRead;
    byte[] jpg;

    var decoder = new JpegDecoder();

    using (var stream = new MemoryStream())
    {
        Console.WriteLine($"Decode jpeg - this operation may take serveral seconds");

        while (frameLen > 0)
        {
            bytesToRead = (byte)Math.Min(32, frameLen);

            var buffer = camera.ReadPicture(bytesToRead);

            stream.Write(buffer, 0, bytesToRead);
            frameLen -= bytesToRead;
        }
        jpg = decoder.DecodeJpeg(stream.ToArray());
    }

    Console.WriteLine($"Jpeg data length: {jpg.Length}");

    Console.WriteLine($"Jpeg decoded is {decoder.ImageSize} bytes");
    Console.WriteLine($"Width {decoder.Width}");
    Console.WriteLine($"Height {decoder.Height}");
    Console.WriteLine($"IsColor {decoder.IsColor}");
}

Sample project(s) available on GitHub

Code Example

Vc0706 camera;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");

    camera = new Vc0706(Device, Device.PlatformOS.GetSerialPortName("COM4"), 38400);

    return Task.CompletedTask;
}

public override Task Run()
{
    if (!camera.SetCaptureResolution(Vc0706.ImageResolution._160x120))
    {
        Resolver.Log.Info("Set resolution failed");
    }

    _ = TakePicture();

    return Task.CompletedTask;
}

async Task TakePicture()
{
    Resolver.Log.Info($"Image size is {camera.GetCaptureResolution()}");

    camera.CapturePhoto();

    using var jpegStream = await camera.GetPhotoStream();

    var jpeg = new JpegImage(jpegStream);
    Resolver.Log.Info($"Image decoded - width:{jpeg.Width}, height:{jpeg.Height}");
}

Sample project(s) available on GitHub

Code Example​

Code Example