davepl
commented
1 year ago To the extent its helpful, here's a Unity client I wrote to do this, but I'd rather have it in a normal web page than as a Unity app!
public class MatrixStreamer : LEDControllerChannel { public DotMatrix dotMatrix; private ColorDataPacket packet = new ColorDataPacket(); private readonly object packetLock = new object();
protected override void DrawLoop()
{
for (; ; )
{
try
{
TcpClient client = new TcpClient("192.168.8.104", 12000);
using (NetworkStream stream = client.GetStream())
using (BinaryReader reader = new BinaryReader(stream))
{
while (true) // Continually read from the socket
{
uint header = reader.ReadUInt32();
if (header != 0x434C5244)
{
// Not our header byte, so continue scanning until we run out of data
// or hit the header byte
continue;
}
else
{
uint count = reader.ReadUInt32();
if (count != Width * Height)
{
Debug.Log("Size mismatch between data and matrix");
}
else
{
CRGB[] colors = new CRGB[Width * Height];
lock (packetLock)
{
packet.Header = header;
packet.Count = count;
packet.Colors = colors;
for (int i = 0; i < Width * Height; i++)
packet.Colors[i] = new CRGB(reader.ReadByte(), reader.ReadByte(), reader.ReadByte());
}
//Debug.Log("Packet Received!");
}
}
}
}
}
catch (SocketException ex)
{
Debug.Log("Exception reading from socket for " + HostName + ": " + ex.Message);
}
catch (Exception e)
{
Debug.Log("Unhandled Exception reading from socket for " + HostName + ": " + e.Message);
}
}
}
// Update is called once per frame
public override void Update()
{
var displayModel = dotMatrix.GetDisplayModel();
Debug.Assert(displayModel != null);
lock (packetLock)
{
if (packet.Colors != null)
{
for (int x = 0; x < Width; x++)
{
for (int y = 0; y < Height; y++)
{
CRGB color = packet.Colors[y * Width + x];
int content = (int)color.GetCode();
displayModel.SetDot(x, y, content);
}
}
}
}
}
zephyrr
Louis-Riel
rbergen
I've added support for pulling the state of the current display via a socket, and it would be nice to display the result in the UI on a preview page.
To fetch a packet, open a socket to port 12000. You can start reading packets out of the socket which have this form:
typedef struct { uint32_t header;
uint32_t count;
CRGB colors[NUM_LEDS]; // Array of LED_COUNT CRGB values } ColorDataPacket;
The header will always be 0x434C5244 The count is the number of LEDs, and it should match the width*height
You would then draw a matrix in the HTML with dots representing each of the pixels in a 64x32 matrix populated with the colors. You can simply continue pulling packets as long as they are available, as one will be sent every new frame.