First functioning draft

InfluxDataService.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using InfluxDB.Client;
+
+public class InfluxDataService
+{
+    private readonly string _url;
+    private readonly string _token;
+    private readonly string _org;
+    private readonly string _bucket;
+
+    public InfluxDataService(string url, string token, string org, string bucket)
+    {
+        _url = url;
+        _token = token;
+        _org = org;
+        _bucket = bucket;
+    }
+
+    public async Task<float> GetLatestTemperatureAsync()
+    {
+        // Connect to the InfluxDB container
+        using var client = new InfluxDBClient(_url, _token);
+        var queryApi = client.GetQueryApi();
+
+        // This is a standard Flux query to get the last recorded value in the last 15 mins.
+        // You will need to change "_measurement" and "_field" to match your setup.
+        string flux = $@"
+            from(bucket: ""{_bucket}"")
+              |> range(start: -15m)
+              |> filter(fn: (r) => r[""_measurement""] == ""LoRa_Test_DB_2"") 
+              |> filter(fn: (r) => r[""_field""] == ""temperature"")
+              |> last()";
+
+        try
+        {
+            var tables = await queryApi.QueryAsync(flux, _org);
+
+            // Check if we actually got data back
+            if (tables != null && tables.Any() && tables[0].Records.Any())
+            {
+                var record = tables[0].Records[0];
+                return Convert.ToSingle(record.GetValue());
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"Error querying InfluxDB: {ex.Message}");
+        }
+
+        return 0f; // Fallback value if query fails or no data is found
+    }
+}

MatrixRenderer.cs

@@ -12,7 +12,9 @@ public class MatrixRenderer
         _wled = new WledDdpClient(wledIp);
     }
 
+    //
     public async Task DrawAndSendFrameAsync(float currentTemp)
+    //public async Task DrawAndSendFrameAsync(string currentTemp)
     {
         // 1. Create a 64x64 canvas
         using SKBitmap bitmap = new SKBitmap(_width, _height, SKColorType.Rgba8888, SKAlphaType.Premul);

Program.cs

@@ -1,13 +1,35 @@
-var renderer = new MatrixRenderer("192.168.0.150"); // Replace with WLED IP
+using System;
+using System.Diagnostics;
+using System.Threading.Tasks;
+
+var renderer = new MatrixRenderer("192.168.0.150"); // Your WLED IP
+
+// Replace these with your actual InfluxDB v2 credentials
+// If Influx is on the same Pi, you can use the Pi's local IP and port 8086
+var influx = new InfluxDataService(
+    url: "http://192.168.0.76:8086",
+    token: ":",
+    org: "-",
+    bucket: "sensor_data"
+);
+
+Console.WriteLine("Starting DDP stream with live InfluxDB data...");
+
+float currentTemp = 1f;
+Stopwatch dbTimer = Stopwatch.StartNew();
 
 while (true)
 {
-    // TODO: Query InfluxDB for your BME680 data here
-    float bme680Temp = 22.5f;
+    // Only query the database every 5 seconds (5000 ms)
+    if (dbTimer.ElapsedMilliseconds > 5000 || currentTemp == 0f)
+    {
+        currentTemp = await influx.GetLatestTemperatureAsync();
+        Console.WriteLine($"Fetched new temp: {currentTemp}c");
+        dbTimer.Restart();
+    }
 
-    await renderer.DrawAndSendFrameAsync(bme680Temp);
+    // Keep pushing frames to WLED at 30 FPS
+    await renderer.DrawAndSendFrameAsync(currentTemp);
 
-    // Update screen at 30 FPS for smooth transitions, 
-    // or every 5 seconds if just showing static data.
     await Task.Delay(1000 / 30);
 }

WLED_DDP_Client.csproj

@@ -8,6 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="InfluxDB.Client" Version="5.1.0" />
     <PackageReference Include="SkiaSharp" Version="4.151.1" />
 	<PackageReference Include="SkiaSharp.NativeAssets.Linux.NoDependencies" Version="2.88.6" />
   </ItemGroup>