comprehensive update

1) remove unused components: camera view (due it causes segmentation faults), compute resources and all related, illuminator controller (due in useless without camera view), image storage service, temperature and humidity service 2) database schema - reduce tables references, features storing in records themselves in compressed form, add records creation and editing date and time, add separator comment column 3) analysis - rework of pipeline and ui, now database storing only raw data and all display values calculated from it 4) lights service - add reconnection if disconnected 5) add width and height command line arguments 6) fix some typos and other issues
2026-06-29 15:13:29 +03:00
parent caee9fafd5
commit 72ae26eee7
74 changed files with 5219 additions and 4248 deletions
@@ -41,7 +41,6 @@ public class CameraService : IDisposable
        CameraManagerStarted = 1 << 1,
        CameraAcquired = 1 << 2,
        CameraStarted = 1 << 3,
-        ViewFinderFrameBufferAllocated = 1 << 4,
        ImageCaptureFrameBufferAllocated = 1 << 5,
        ImageCaptureFrameBuffersMapped = 1 << 6
    }
@@ -51,10 +50,6 @@ public class CameraService : IDisposable
        public static CameraServiceConfiguration Default => new CameraServiceConfiguration
        {
            CameraId = "",
-            ViewFinderFrameBufferCount = 5,
-            ViewFinderWidth = 4056,
-            ViewFinderHeight = 3080,
-            ViewFinderFps = 30,
            ImageCaptureFrameBufferCount = 2,
            ImageCaptureWidth = 4056,
            ImageCaptureHeight = 3080,
@@ -66,10 +61,6 @@ public class CameraService : IDisposable
        };

        public string CameraId { get; init; } = "";
-        public int ViewFinderFrameBufferCount { get; init; }
-        public int ViewFinderWidth { get; init; }
-        public int ViewFinderHeight { get; init; }
-        public int ViewFinderFps { get; init; }
        public int ImageCaptureFrameBufferCount { get; init; }
        public int ImageCaptureWidth { get; init; }
        public int ImageCaptureHeight { get; init; }
@@ -87,16 +78,11 @@ public class CameraService : IDisposable
    private CameraManager? _cameraManager;
    private Camera? _camera;
    private CameraConfiguration? _cameraConfiguration;
-    private StreamConfiguration? _viewFinderStreamConfiguration;
    private StreamConfiguration? _imageCaptureStreamConfiguration;
-    private FrameBufferAllocator? _viewFinderFrameBufferAllocator;
    private FrameBufferAllocator? _imageCaptureFrameBufferAllocator;
-    private Stream? _viewFinderStream;
    private Stream? _imageCaptureStream;
    private List<MappedBuffer>? _imageCaptureMappedBuffers;
-    private System.Timers.Timer? _viewFinderTimer = null;
    private System.Timers.ElapsedEventHandler? _viewFinderTimerElapsed = null;
-    private EventHandler<Camera.RequestCompletedEventArgs>? _viewFinderRequestCompletedHandler = null;
    private readonly CancellationTokenSource _disposeCts = new CancellationTokenSource();
    private readonly Dictionary<string, object> _cameraHardSettings = new Dictionary<string, object>();

@@ -176,10 +162,8 @@ public class CameraService : IDisposable
            CameraSelect(effectiveCancellationToken);
            CameraAcquire(effectiveCancellationToken);
            CameraConfigure(effectiveCancellationToken);
-            ViewFinderFrameBuffersAllocate(effectiveCancellationToken);
            ImageCaptureFrameBuffersAllocate(effectiveCancellationToken);
            CameraStart(effectiveCancellationToken);
-            ViewFinderFrameBuffersInitialize(effectiveCancellationToken);
            ImageCaptureFrameBuffersInitialize(effectiveCancellationToken);
            ImageCaptureFrameBuffersMap(effectiveCancellationToken);
        }
@@ -251,16 +235,8 @@ public class CameraService : IDisposable

        cancellationToken.ThrowIfCancellationRequested();

-        _cameraConfiguration = _camera.GenerateConfiguration(
-            StreamRoleEnum.Viewfinder,
-            StreamRoleEnum.Raw);
+        _cameraConfiguration = _camera.GenerateConfiguration(StreamRoleEnum.Raw);

-        _viewFinderStreamConfiguration = _cameraConfiguration.First();
-        _viewFinderStreamConfiguration.BufferCount = checked((uint)_configuration.ViewFinderFrameBufferCount);
-        _viewFinderStreamConfiguration.Size = new Size(
-            checked((uint)_configuration.ViewFinderWidth),
-            checked((uint)_configuration.ViewFinderHeight)
-        );

        _imageCaptureStreamConfiguration = _cameraConfiguration.Skip(1).First();
        _imageCaptureStreamConfiguration.BufferCount = checked((uint)_configuration.ImageCaptureFrameBufferCount);
@@ -275,13 +251,6 @@ public class CameraService : IDisposable
            throw new Exception("Error while camera configuration validation");
        }

-        _logger.LogDebug(@$"ViewFinder stream configuration:
-            Size: {_viewFinderStreamConfiguration.Size.ToString(true)}
-            FrameSize: {_viewFinderStreamConfiguration.FrameSize}
-            Stride: {_viewFinderStreamConfiguration.Stride}
-            ColorSpace: {_viewFinderStreamConfiguration.ColorSpace?.ToString(true)}
-            PixelFormat: {_viewFinderStreamConfiguration.PixelFormat?.ToString(true)}");
-
        _logger.LogDebug(@$"ImageCapture stream configuration:
            Size: {_imageCaptureStreamConfiguration.Size.ToString(true)}
            FrameSize: {_imageCaptureStreamConfiguration.FrameSize}
@@ -298,7 +267,6 @@ public class CameraService : IDisposable
            throw new Exception($"Error while camera configuration {result}");
        }

-        _viewFinderStream = _viewFinderStreamConfiguration.Stream();
        _imageCaptureStream = _imageCaptureStreamConfiguration.Stream();
    }
    private void CameraStart(CancellationToken cancellationToken)
@@ -320,28 +288,6 @@ public class CameraService : IDisposable

        _state |= State.CameraStarted;
    }
-    private void ViewFinderFrameBuffersAllocate(CancellationToken cancellationToken)
-    {
-        if (_camera is null)
-            throw new InvalidOperationException("Camera not initialized");
-        if (_viewFinderStream is null)
-            throw new InvalidOperationException("ViewFinderStream not initialized");
-
-        cancellationToken.ThrowIfCancellationRequested();
-
-        _viewFinderFrameBufferAllocator = new FrameBufferAllocator(_camera);
-
-        cancellationToken.ThrowIfCancellationRequested();
-
-        int result = _viewFinderFrameBufferAllocator.Allocate(_viewFinderStream);
-        if (result < 0)
-        {
-            _logger.LogCritical("Error while view finder frame buffers allocation {Result}", result);
-            throw new Exception($"Error while view finder frame buffers allocation {result}");
-        }
-
-        _state |= State.ViewFinderFrameBufferAllocated;
-    }
    private void ImageCaptureFrameBuffersAllocate(CancellationToken cancellationToken)
    {
        if (_camera is null)
@@ -364,55 +310,6 @@ public class CameraService : IDisposable

        _state |= State.ImageCaptureFrameBufferAllocated;
    }
-    private void ViewFinderFrameBuffersInitialize(CancellationToken cancellationToken)
-    {
-        if (_camera is null)
-            throw new InvalidOperationException("Camera not initialized");
-        if (_viewFinderStream is null)
-            throw new InvalidOperationException("ViewFinderStream not initialized");
-        if (_viewFinderFrameBufferAllocator is null)
-            throw new InvalidOperationException("ViewFinderFrameBufferAllocator not initialized");
-
-        cancellationToken.ThrowIfCancellationRequested();
-
-        var buffers = _viewFinderFrameBufferAllocator.Buffers(_viewFinderStream);
-
-        _logger.LogDebug("View finder frame buffers initialization");
-        foreach (var buffer in buffers)
-        {
-            cancellationToken.ThrowIfCancellationRequested();
-
-            var request = _camera.CreateRequest(0);
-            var result = request.AddBuffer(_viewFinderStream, buffer);
-            if (result < 0)
-                throw new Exception("Error while request create");
-
-            var cts = new TaskCompletionSource();
-            void RequestCompleted(object? sender, Camera.RequestCompletedEventArgs e)
-            {
-                if (e.Request.Handle == request.Handle)
-                    cts.SetResult();
-            }
-
-            _camera.RequestCompleted += RequestCompleted;
-            result = _camera.QueueRequest(request);
-            if (result < 0)
-            {
-                _camera.RequestCompleted -= RequestCompleted;
-                throw new Exception("Error while request queue");
-            }
-            cts.Task.WaitAsync(cancellationToken).GetAwaiter().GetResult();
-            _camera.RequestCompleted -= RequestCompleted;
-
-            _logger.LogDebug("Request completed: \n\tResult: {} \n\tStatus: {} \n\tCookie: {} \n\tSequence: {} \n\tHasPendingBuffers: {}", result, request.Status, request.Cookie, request.Sequence, request.HasPendingBuffers);
-            _logger.LogDebug("Request buffer: \n\tStatus: {} \n\tCookie: {} \n\tSequence: {} \n\tTimestamp: {}", buffer.Metadata.Status, buffer.Cookie, buffer.Metadata.Sequence, buffer.Metadata.Timestamp);
-            _logger.LogDebug("Request buffer planes: ");
-            foreach (var (i, plane) in buffer.Metadata.Planes.Enumerate())
-                _logger.LogDebug("Plane[{}]: bytes used: 0x{:X}", i, plane.BytesUsed);
-            foreach (var (i, plane) in buffer.Planes.Enumerate())
-                _logger.LogDebug("Plane[{}]: \n\tFd: 0x{:X} \n\tOffset: 0x{:X} \n\tLength: 0x{:X} \n\tKInvalidOffset: 0x{:X}", i, plane.Fd.Get(), plane.Offset, plane.Length, plane.KInvalidOffset);
-        }
-    }
    private void ImageCaptureFrameBuffersInitialize(CancellationToken cancellationToken)
    {
        if (_camera is null)
@@ -826,135 +723,6 @@ public class CameraService : IDisposable
        return image;
    }

-    public void StartViewFinder()
-    {
-        if (_camera is null)
-            throw new InvalidOperationException("Camera not initialized");
-        if (_viewFinderStream is null)
-            throw new InvalidOperationException("ViewFinderStream not initialized");
-        if (_viewFinderStreamConfiguration is null)
-            throw new InvalidOperationException("ViewFinderStreamConfiguration not initialized");
-        if (_viewFinderFrameBufferAllocator is null)
-            throw new InvalidOperationException("ViewFinderFrameBufferAllocator not initialized");
-        if (_viewFinderTimer is not null ||
-            _viewFinderTimerElapsed is not null ||
-            _viewFinderRequestCompletedHandler is not null)
-            throw new InvalidOperationException();
-
-        ViewFinderStarted = true;
-
-        _viewFinderTimer = new System.Timers.Timer()
-        {
-            Interval = 1000 / _configuration.ViewFinderFps,
-            AutoReset = true,
-        };
-
-        try
-        {
-            var buffers = _viewFinderFrameBufferAllocator.Buffers(_viewFinderStream);
-            lock (ViewFinderBufferQueue)
-                foreach (var buffer in buffers)
-                    ViewFinderBufferQueue.Add(buffer);
-
-            void RequestCompleted(object? sender, Camera.RequestCompletedEventArgs ea)
-            {
-                if (ea.Request.Cookie != 2)
-                    return;
-                var buffer = ea.Request.FindBuffer(_viewFinderStream);
-                // _logger.LogInformation("Completed request for frame buffer {}", buffer);
-                lock (ViewFinderBufferQueue)
-                    ViewFinderBufferQueue.Add(buffer);
-            }
-            _viewFinderRequestCompletedHandler = RequestCompleted;
-            _camera.RequestCompleted += _viewFinderRequestCompletedHandler;
-
-            void TimerElapsed(object? sender, System.Timers.ElapsedEventArgs ea)
-            {
-                if (IsImageCapturing)
-                    return;
-
-                try
-                {
-                    FrameBuffer buffer;
-                    lock (ViewFinderBufferQueue)
-                    {
-                        if (ViewFinderBufferQueue.Count() > 0 && (
-                            ViewFinderBufferQueue.First().Request.Cookie != 2 ||
-                            ViewFinderBufferQueue.First().Request.Status == Request.StatusEnum.RequestComplete ||
-                            ViewFinderBufferQueue.First().Request.Status == Request.StatusEnum.RequestCancelled))
-                        {
-                            buffer = ViewFinderBufferQueue.First();
-                            ViewFinderBufferQueue.Remove(buffer);
-                        }
-                        else
-                            return;
-                    }
-
-                    var request = _camera.CreateRequest(2);
-                    request.AddBuffer(_viewFinderStream, buffer);
-                    _camera.QueueRequest(request);
-                    // _logger.LogInformation("Queued request for frame buffer {}", buffer);
-                }
-                catch (Exception ex)
-                {
-                    _logger.LogError(ex, "Error while ViewFinder tick");
-                }
-            }
-            _viewFinderTimerElapsed = TimerElapsed;
-            _viewFinderTimer.Elapsed += _viewFinderTimerElapsed;
-            _viewFinderTimer.Start();
-
-            _logger.LogInformation("ViewFinder started");
-
-        }
-        catch (Exception ex)
-        {
-            _logger.LogError(ex, "Error while ViewFinder start");
-            _viewFinderTimer.Stop();
-            _viewFinderTimer.Dispose();
-            _viewFinderTimer = null;
-            _viewFinderTimerElapsed = null;
-            _camera.RequestCompleted -= _viewFinderRequestCompletedHandler;
-            _viewFinderRequestCompletedHandler = null;
-            lock (ViewFinderBufferQueue)
-                ViewFinderBufferQueue.Clear();
-        }
-    }
-    public void StopViewFinder()
-    {
-        ViewFinderStarted = false;
-        _viewFinderTimer?.Stop();
-        _viewFinderTimer?.Dispose();
-        _viewFinderTimer = null;
-        _viewFinderTimerElapsed = null;
-        _camera?.RequestCompleted -= _viewFinderRequestCompletedHandler;
-        _viewFinderRequestCompletedHandler = null;
-        lock (ViewFinderBufferQueue)
-            ViewFinderBufferQueue.Clear();
-    }
-    public (FrameBuffer, StreamConfiguration)? GrabViewFinderFrame()
-    {
-        if (IsImageCapturing)
-            return null;
-
-        FrameBuffer? buffer = null;
-        lock (ViewFinderBufferQueue)
-            if (ViewFinderBufferQueue.Count() > 0)
-            {
-                buffer = ViewFinderBufferQueue.LastOrDefault();
-                if (buffer is not null)
-                    ViewFinderBufferQueue.Remove(buffer);
-            }
-        if (buffer is not null && _viewFinderStreamConfiguration is not null)
-            return (buffer, _viewFinderStreamConfiguration);
-        return null;
-    }
-    public void ReturnViewFinderFrame(FrameBuffer frameBuffer)
-    {
-        lock (ViewFinderBufferQueue)
-            ViewFinderBufferQueue.Insert(0, frameBuffer);
-    }
-
    protected virtual void Dispose(bool disposing)
    {
        if (!_disposedValue)
@@ -986,8 +754,6 @@ public class CameraService : IDisposable
                }
                _imageCaptureMappedBuffers.Clear();
            }
-            if (_state.HasFlag(State.ViewFinderFrameBufferAllocated) && _viewFinderStream is not null)
-                _viewFinderFrameBufferAllocator?.Free(_viewFinderStream);
            if (_state.HasFlag(State.ImageCaptureFrameBufferAllocated) && _imageCaptureStream is not null)
                _imageCaptureFrameBufferAllocator?.Free(_imageCaptureStream);
            if (_state.HasFlag(State.CameraStarted))
@@ -997,23 +763,17 @@ public class CameraService : IDisposable
            if (_state.HasFlag(State.CameraManagerStarted))
                _cameraManager?.Stop();

-            // _viewFinderStream?.Dispose();
-            // _imageCaptureStream?.Dispose();
-            // _viewFinderFrameBufferAllocator?.Dispose();
-            // _imageCaptureFrameBufferAllocator?.Dispose();
            _cameraManager?.Dispose();
        }
-        catch (Exception e)
+        catch (Exception ex)
        {
-            _logger.LogError(e, "Error while CameraService cleanup");
+            _logger.LogError(ex, "Error while CameraService cleanup");
        }
        finally
        {
            _cameraManager = null;
            _camera = null;
-            _viewFinderFrameBufferAllocator = null;
            _imageCaptureFrameBufferAllocator = null;
-            _viewFinderStream = null;
            _imageCaptureStream = null;
            _imageCaptureMappedBuffers = null;
            _state = State.NotInitialized;
@@ -1,143 +0,0 @@
-using System.Globalization;
-
-using GSS2.Core.Extensions;
-
-using Microsoft.Extensions.Logging;
-
-namespace GSS2.Core.Hardware;
-
-public class ComputeResourcesService
-{
-    public record CpuUsage(double AllUsagePercent, List<double> CoreUsagePercents);
-    public record CpuTemperature(double Current, double Critical);
-    public record MemoryUsage(
-        long TotalB, long UsedB, long AvailableB,
-        double TotalkB, double UsedkB, double AvailablekB,
-        double TotalMB, double UsedMB, double AvailableMB,
-        double TotalGB, double UsedGB, double AvailableGB)
-    {
-        public MemoryUsage(long totalB, long usedB, long availableB) :
-        this(
-            TotalB: totalB, UsedB: usedB, AvailableB: availableB,
-            TotalkB: totalB / 1000, UsedkB: usedB / 1000, AvailablekB: availableB / 1000,
-            TotalMB: totalB / Math.Pow(1000.0, 2), UsedMB: usedB / Math.Pow(1000.0, 2), AvailableMB: availableB / Math.Pow(1000.0, 2),
-            TotalGB: totalB / Math.Pow(1000.0, 3), UsedGB: usedB / Math.Pow(1000.0, 3), AvailableGB: availableB / Math.Pow(1000.0, 3)
-        )
-        { }
-    }
-    public record ComputeResourcesSnapshot(CpuUsage CpuUsage, MemoryUsage MemoryUsage, CpuTemperature CpuTemperature, DateTime Timestamp);
-    private readonly ILogger<ComputeResourcesService> _logger;
-
-    private (long idle, long total)? _prevAll = null;
-    private Dictionary<int, (long idle, long total)?>? _prevCores = null;
-
-    public ComputeResourcesService(ILogger<ComputeResourcesService> logger)
-    {
-        _logger = logger;
-        _logger.LogInformation("Initialization");
-        _logger.LogInformation("Initialized");
-    }
-
-    public ComputeResourcesSnapshot GetSnapshot()
-    {
-        return new ComputeResourcesSnapshot(
-            CpuUsage: GetCpuUsage(),
-            CpuTemperature: GetCpuTemperature(),
-            MemoryUsage: GetMemoryUsage(),
-            Timestamp: DateTime.UtcNow
-        );
-    }
-    private CpuUsage GetCpuUsage()
-    {
-        static (double usage, long idle, long total) ParseLines(string line, (long idle, long total)? prev)
-        {
-            var parts = line.Split(' ', StringSplitOptions.RemoveEmptyEntries);
-            long user = long.Parse(parts[1]);
-            long nice = long.Parse(parts[2]);
-            long system = long.Parse(parts[3]);
-            long idle = long.Parse(parts[4]);
-            long iowait = line.Length > 5 ? long.Parse(parts[5]) : 0;
-            long irq = line.Length > 6 ? long.Parse(parts[6]) : 0;
-            long softirq = line.Length > 7 ? long.Parse(parts[7]) : 0;
-
-            long idleTime = idle + iowait;
-            long totalTime = idleTime + user + nice + system + irq + softirq;
-
-            double usage = 0;
-
-            if (prev is not null)
-            {
-                long totalDiff = totalTime - prev.Value.total;
-                long idleDiff = idleTime - prev.Value.idle;
-
-
-                if (totalDiff > 0)
-                    usage = (double)(totalDiff - idleDiff) / totalDiff * 100.0;
-            }
-
-            return (usage, idleTime, totalTime);
-        }
-
-        var lines = File.ReadLines("/proc/stat").Where(l => l.StartsWith("cpu"));
-        if (lines.Count() == 0)
-            return new CpuUsage(0, new List<double>());
-
-        var (allUsage, allIdle, allTotal) = ParseLines(lines.First(), _prevAll);
-        _prevAll = (allIdle, allTotal);
-
-        var coreUsages = new List<double>();
-
-        foreach (var (i, line) in lines.Skip(1).Enumerate())
-        {
-            if (_prevCores is null)
-                _prevCores = new Dictionary<int, (long idle, long total)?>();
-            if (!_prevCores.ContainsKey(i))
-                _prevCores.Add(i, null);
-            var (coreUsage, coreIdle, coreTotal) = ParseLines(line, _prevCores[i]);
-            _prevCores[i] = (coreIdle, coreTotal);
-            coreUsages.Add(coreUsage);
-        }
-
-        return new CpuUsage(
-            AllUsagePercent: allUsage,
-            CoreUsagePercents: coreUsages
-        );
-    }
-    private CpuTemperature GetCpuTemperature()
-    {
-        var currentStr = File.ReadAllText("/sys/class/thermal/thermal_zone0/temp").Trim();
-        var current = int.Parse(currentStr) / 1000.0;
-
-        var criticalFile = Directory.GetFiles("/sys/class/thermal/thermal_zone0/", "trip_point_*_type")
-            .FirstOrDefault(f => File.ReadAllText(f).Trim() == "critical")?
-            .Replace("_type", "_temp");
-
-        double critical = 100.0;
-        if (criticalFile is not null)
-        {
-            var criticalStr = File.ReadAllText(criticalFile).Trim();
-            critical = int.Parse(criticalStr) / 1000.0;
-        }
-
-        return new CpuTemperature(
-            Current: current,
-            Critical: critical
-        );
-    }
-    private MemoryUsage GetMemoryUsage()
-    {
-        var memInfo = File.ReadAllLines("/proc/meminfo")
-            .Select(l => l.Split(':', 2))
-            .ToDictionary(
-                p => p[0],
-                p => long.Parse(p[1].Trim().Split(' ')[0], CultureInfo.InvariantCulture) * 1024
-            );
-
-        long total = memInfo["MemTotal"];
-        long available = memInfo.ContainsKey("MemAvailable") ? memInfo["MemAvailable"] : memInfo["MemFree"];
-
-        long used = total - available;
-
-        return new MemoryUsage(totalB: total, usedB: used, availableB: available);
-    }
-}
@@ -38,12 +38,18 @@ public class LightsService
            if (configuration is null)
            {
                configuration = LightsServiceConfiguration.Default;
+                
                _logger.LogWarning("Configuration not set. Using default configuration.");
            }
            _configuration = configuration;
            _logger.LogInformation("Using following configuration: \n{}", _configuration.ToString("\n", 4));
-
-            _client = new Lights.LightsClient(GrpcChannel.ForAddress(_configuration.ServerAddress));
+            var channelOptions = new GrpcChannelOptions
+            {
+                Credentials = ChannelCredentials.Insecure,
+                HttpHandler = new SocketsHttpHandler(),
+                MaxReconnectBackoff = TimeSpan.FromSeconds(10)
+            };
+            _client = new Lights.LightsClient(GrpcChannel.ForAddress(_configuration.ServerAddress, channelOptions));
        }
        catch (Exception e)
        {
@@ -1,172 +0,0 @@
-using System.Device.I2c;
-
-using Microsoft.Extensions.Logging;
-
-using GSS2.Core.Abstractions;
-
-namespace GSS2.Core.Hardware;
-
-public class TemperatureHumidityService : IDisposable
-{
-    public record TemperatureHumidityServiceConfiguration : ServiceConfigurationBase
-    {
-        public static TemperatureHumidityServiceConfiguration Default => new TemperatureHumidityServiceConfiguration
-        {
-            Bus = 6,
-            Address = 0x45
-        };
-
-        public int Bus { get; init; }
-        public int Address { get; init; }
-    }
-    private bool _disposedValue;
-    private readonly ILogger<TemperatureHumidityService> _logger;
-    private readonly TemperatureHumidityServiceConfiguration _configuration;
-
-    private readonly I2cDevice _sensor;
-
-    public TemperatureHumidityService(ILogger<TemperatureHumidityService> logger, TemperatureHumidityServiceConfiguration? configuration = null)
-    {
-        _logger = logger;
-
-        _logger.LogInformation("Initialization");
-
-        try
-        {
-            if (configuration is null)
-            {
-                configuration = TemperatureHumidityServiceConfiguration.Default;
-                _logger.LogWarning("Configuration not set. Using default configuration.");
-            }
-            _configuration = configuration;
-            _logger.LogInformation("Using following configuration: \n{}", _configuration.ToString("\n", 4));
-
-            _sensor = I2cDevice.Create(new I2cConnectionSettings(_configuration.Bus, _configuration.Address));
-        }
-        catch (Exception e)
-        {
-            _logger.LogCritical(e, "An exception occurred while initialization");
-            throw;
-        }
-
-        _logger.LogInformation("Initialized");
-    }
-
-    public (double temperature, double relativeHumidity) Measure(int measurementsCount = 1, bool checkCrc = true, CancellationToken cancellationToken = default)
-    {
-        // В соответствии с даташитом на SHT45-AD1B-R2 псевдокод измерения с высокой точностью следующий:
-        // i2c_write(i2c_addr=0x44, tx_bytes=[0xFD])
-        // wait_seconds(0.01)
-        // rx_bytes = i2c_read(i2c_addr=0x44, number_of_bytes=6)
-        // t_ticks = rx_bytes[0] * 256 + rx_bytes[1]
-        // checksum_t = rx_bytes[2]
-        // rh_ticks = rx_bytes[3] * 256 + rx_bytes[4]
-        // checksum_rh = rx_bytes[5]
-        // t_degC = -45 + 175 * t_ticks/65535
-        // rh_pRH = -6 + 125 * rh_ticks/65535
-        // if (rh_pRH > 100):
-        // rh_pRH = 100
-        // if (rh_pRH < 0):
-        // rh_pRH = 0
-
-        if (measurementsCount <= 0)
-            throw new ArgumentOutOfRangeException(nameof(measurementsCount));
-
-        double sumTemperature = 0;
-        double sumRelativeHumidity = 0;
-        int successMeasurementsCount = 0;
-
-        Span<byte> command = stackalloc byte[] { 0xFD };
-        Span<byte> data = stackalloc byte[6];
-
-        for (int i = 0; i < measurementsCount; i++)
-        {
-            cancellationToken.ThrowIfCancellationRequested();
-
-            try
-            {
-                // Отправляем команду
-                _sensor.Write(command);
-                // 10 мс ожидания
-                Task.Delay(10, cancellationToken);
-                // Читаем данные
-                _sensor.Read(data);
-
-                // Распаковываем данные [2 * 8-bit T-data; 8-bit CRC; 2 * 8-bit RH-data; 8-bit CRC]
-                byte temperatureChecksum = data[2];
-                byte relativeHumidityChecksum = data[5];
-                ushort temperatureTicks = BitConverter.ToUInt16(data.Slice(0, 2));
-                int relativeHumidityTicks = BitConverter.ToUInt16(data.Slice(3, 2));
-
-                // Проверка по CRC
-                if (checkCrc && (!CheckCrc(data.Slice(0, 2), temperatureChecksum) ||
-                    !CheckCrc(data.Slice(3, 2), relativeHumidityChecksum)))
-                {
-                    _logger.LogWarning("Temperature and humidity sensor CRC error");
-                    continue;
-                }
-
-                // Пересчёт
-                double temperature = -45 + 175 * (temperatureTicks / 65535.0);
-                double relativeHumidity = -6 + 125 * (relativeHumidityTicks / 65535.0);
-                relativeHumidity = Math.Clamp(relativeHumidity, 0, 100);
-
-                // Сумма для усреднения
-                sumTemperature += temperature;
-                sumRelativeHumidity += relativeHumidity;
-                successMeasurementsCount++;
-            }
-            catch (Exception e)
-            {
-                _logger.LogWarning(e, "Temperature and humidity sensor not available on I2C bus");
-            }
-        }
-
-        if (successMeasurementsCount == 0)
-        {
-            _logger.LogError("Temperature and humidity sensor: no successful measurements");
-            return (double.NaN, double.NaN);
-        }
-
-        return (sumTemperature / successMeasurementsCount, sumRelativeHumidity / successMeasurementsCount);
-    }
-
-    private static bool CheckCrc(Span<byte> data, byte expectedCrc)
-    {
-        byte crc = 0xFF;
-        foreach (var b in data)
-        {
-            crc ^= b;
-            for (int i = 0; i < 8; i++)
-            {
-                if ((crc & 0x80) != 0)
-                    crc = (byte)((crc << 1) ^ 0x31);
-                else
-                    crc <<= 1;
-            }
-        }
-        return crc == expectedCrc;
-    }
-
-    protected virtual void Dispose(bool disposing)
-    {
-        if (!_disposedValue)
-        {
-            if (disposing)
-            {
-                try
-                {
-                    _sensor?.Dispose();
-                }
-                catch { }
-            }
-
-            _disposedValue = true;
-        }
-    }
-    void IDisposable.Dispose()
-    {
-        Dispose(disposing: true);
-        GC.SuppressFinalize(this);
-    }
-}