first working version

src/connection.rs

@@ -0,0 +1,22 @@
+use std::net::{ToSocketAddrs, UdpSocket};
+use crate::{Command, Packet};
+
+pub struct Connection {
+    socket: UdpSocket,
+}
+
+impl Connection {
+    /// Open a new UDP socket and create a display instance
+    pub fn open(addr: impl ToSocketAddrs) -> std::io::Result<Self> {
+        let socket = UdpSocket::bind("0.0.0.0:0")?;
+        socket.connect(addr)?;
+        Ok(Self { socket })
+    }
+
+    /// Send a command to the display
+    pub fn send(&self, command: Command) -> std::io::Result<()> {
+        let packet: Packet = command.into();
+        self.socket.send(&packet)?;
+        Ok(())
+    }
+}