switched back to ESP32 and UDP, but without OSC, because serial under windows is a bitch

analog_system_monitor_dotnet/UdpSender.cs

@@ -0,0 +1,64 @@
+#nullable enable
+
+using System;
+using System.IO;
+using System.Net;
+using System.Net.Sockets;
+using System.Text.Json;
+
+public class UdpSender : IDisposable
+{
+    private readonly UdpClient client = new UdpClient();
+    private IPEndPoint endpoint;
+
+    private const string DefaultIp = "192.168.1.50";
+    private const int DefaultPort = 12345;
+
+    public UdpSender()
+    {
+        string exeDir = AppContext.BaseDirectory;
+        string cfgPath = Path.Combine(exeDir, "config.json");
+
+        // Create default config if missing
+        if (!File.Exists(cfgPath))
+        {
+            var defaultCfg = new UdpConfig
+            {
+                esp32_ip = DefaultIp,
+                esp32_port = DefaultPort
+            };
+
+            string json = JsonSerializer.Serialize(
+                defaultCfg,
+                new JsonSerializerOptions { WriteIndented = true }
+            );
+
+            File.WriteAllText(cfgPath, json);
+        }
+
+        // Load config
+        var jsonText = File.ReadAllText(cfgPath);
+        var cfg = JsonSerializer.Deserialize<UdpConfig>(jsonText)
+                  ?? throw new Exception("Invalid config.json");
+
+        endpoint = new IPEndPoint(IPAddress.Parse(cfg.esp32_ip), cfg.esp32_port);
+    }
+
+    public void SendFloats(float[] values)
+    {
+        string packet = string.Join(",", values);
+        byte[] data = System.Text.Encoding.ASCII.GetBytes(packet);
+        client.Send(data, data.Length, endpoint);
+    }
+
+    public void Dispose()
+    {
+        client.Dispose();
+    }
+
+    private class UdpConfig
+    {
+        public string esp32_ip { get; set; } = DefaultIp;
+        public int esp32_port { get; set; } = DefaultPort;
+    }
+}