 
             var bytes = [UInt8](repeating: 0, count: 344)
             (payloadData as NSData).getBytes(&bytes, length: 344)
-            sennsorData = SensorData(bytes: bytes, date: Date())
-            if let sennsorData = sennsorData {
+            sensorData = SensorData(bytes: bytes, date: Date())
+            if let sennsorData = sensorData {
                 trendMeasurements = sennsorData.trendMeasurements(bloodGlucoseOffset, slope: bloodGlucoseSlope)
                 historyMeasurements = sennsorData.historyMeasurements(bloodGlucoseOffset, slope: bloodGlucoseSlope)
                 notificationForGlucoseMeasurements(trendMeasurements!)


            case 5:
                cell.textLabel?.text = "Sensorstart vor"
                if let sennsorData = sennsorData {
                    let minutes = sennsorData.minutesSinceStart
                    let days = Int( Double(minutes) / 24.0 / 60.0 )
                    let hours = Int( Double(minutes) / 60.0 ) - days*24

                cell.backgroundColor = colorForConnectionState()
            case 1:
                cell.textLabel?.text = "Letzter Scan:"
                if let sennsorData = sensorData {
                    cell.detailTextLabel?.text = String(format: "am \(dateFormatter.string(from: sennsorData.date as Date)), um \(timeFormatter.string(from: sennsorData.date as Date)) Uhr, in %.2f s",
                                                        arguments: [transmissionDuration])
                    
