feat(pkg): add logger and round direct over sensor interface

cmd/daemon/daemon.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/go-flucky/flucky/pkg/config"
 	"github.com/go-flucky/flucky/pkg/daemon"
+	"github.com/go-flucky/flucky/pkg/logger"
 	"github.com/spf13/cobra"
 )
 
@@ -29,10 +30,9 @@ var daemonCmd = &cobra.Command{
 			log.Fatalf("Can not parse clean cache interval into duration time: %v", err)
 		}
 
-		err = daemon.Start(cnf, duration, compression, round)
+		logger := logger.NewDefaultLogger(logger.LogLevelDebug, false)
-		if err != nil {
+
-			log.Fatalln(err)
+		daemon.Start(cnf, duration, compression, round, logger)
-		}
 
 	},
 }

pkg/daemon/daemon.go

@@ -2,26 +2,28 @@ package daemon
 
 import (
 	"context"
-	"fmt"
-	"log"
 	"os"
 	"os/signal"
 	"syscall"
 	"time"
 
 	"github.com/go-flucky/flucky/pkg/config"
-	"github.com/go-flucky/flucky/pkg/internal/collect"
-	"github.com/go-flucky/flucky/pkg/internal/prittyprint"
 	"github.com/go-flucky/flucky/pkg/logfile"
+	"github.com/go-flucky/flucky/pkg/logger"
 	"github.com/go-flucky/flucky/pkg/rgbled"
 	"github.com/go-flucky/flucky/pkg/sensor"
 	"github.com/go-flucky/flucky/pkg/types"
 )
 
 // Start the daemon
-func Start(cnf *config.Configuration, cleanCacheIntervall time.Duration, compression bool, round float64) error {
+func Start(cnf *config.Configuration, cleanCacheInterval time.Duration, compression bool, round float64, logger logger.Logger) {
 
-	ticker := time.Tick(cleanCacheIntervall)
+	// Info
+	logger.Info("Use clean-cache-interval: %v", cleanCacheInterval.String())
+	logger.Info("Use compression: %v", compression)
+	logger.Info("Round values: %v", round)
+
+	ticker := time.Tick(cleanCacheInterval)
 
 	interrupt := make(chan os.Signal, 1)
 	signal.Notify(interrupt, os.Interrupt, os.Kill, syscall.SIGTERM)
@@ -34,66 +36,63 @@ func Start(cnf *config.Configuration, cleanCacheIntervall time.Duration, compres
 	childContext, cancel := context.WithCancel(ctx)
 
 	// go sensor.ReadHumiditiesContinuously(cnf.GetHumiditySensors(config.ENABLED), humidityChannel, errorChannel)
-	go sensor.ReadTemperaturesContinuously(childContext, cnf.GetTemperatureSensors(config.ENABLED), temperatureChannel, errorChannel)
+	go sensor.ReadTemperaturesContinuously(childContext, cnf.GetTemperatureSensors(config.ENABLED), round, temperatureChannel, errorChannel)
 
 	temperatures := make([]*types.Temperature, 0)
 
 	rgbLEDs := cnf.GetRGBLEDs(config.ENABLED)
 	err := rgbled.Green(rgbLEDs)
 	if err != nil {
-		cancel()
+		logger.Error("Can not turn on green info light: %v", err)
-		return fmt.Errorf("Can not turn on blue info light: %v", err)
 	}
 
 	for {
 		select {
+		case err, _ := <-errorChannel:
+			logger.Error("%v", err)
+
 		case <-ticker:
 			err := rgbled.Blue(rgbLEDs)
 			if err != nil {
-				cancel()
+				logger.Error("Can not turn on blue info light: %v", err)
-				return fmt.Errorf("Can not turn on yellow info light: %v", err)
 			}
 
 			err = logfile.WriteTemperatures(temperatures, cnf.Device.TemperatureLogfile, compression)
 			if err != nil {
 				cancel()
-				return fmt.Errorf("Can not save temperatures: %v", err)
+				logger.Fatal("Can not save temperatures: %v", err)
 			}
 			temperatures = make([]*types.Temperature, 0)
 
 			err = rgbled.Green(rgbLEDs)
 			if err != nil {
-				cancel()
+				logger.Error("Can not turn on green info light: %v", err)
-				return fmt.Errorf("Can not turn on green info light: %v", err)
 			}
 
-		case temperature, more := <-temperatureChannel:
+		case temperature, _ := <-temperatureChannel:
-			if more {
+			temperatures = append(temperatures, temperature)
-				temperatures = append(temperatures, temperature)
-				continue
-			}
 
 		case killSignal := <-interrupt:
-			log.Printf("Daemon was interruped by system signal %v\n", killSignal)
+			logger.Warn("Daemon was interruped by system signal %v\n", killSignal)
 
 			cancel()
 
 			err := rgbled.Red(rgbLEDs)
 			if err != nil {
-				return fmt.Errorf("Can not turn on info light: %v", err)
+				logger.Error("Can not turn on red info light: %v", err)
 			}
 
-			errors := collect.Errors(errorChannel)
+			logger.Warn("Save remaining temperature data from the cache")
-			if len(errors) > 0 {
+			if compression {
-				log.Println(prittyprint.FormatErrors(errors))
+				temperatures = logfile.CompressTemperature(temperatures)
 			}
 
 			err = logfile.WriteTemperatures(temperatures, cnf.Device.TemperatureLogfile, compression)
 			if err != nil {
-				return fmt.Errorf("Can not save temperatures: %v", err)
+				logger.Fatal("Can not save temperatures: %v", err)
 			}
 
-			return nil
+			return
 		}
 	}
 }

pkg/logfile/logfile.go

@@ -181,13 +181,12 @@ func WriteTemperatures(temperatures []*types.Temperature, temperatureLogfile str
 // custom writer. Compression can be enabled over a bolean parameter
 func WriteTemperaturesCustom(temperatures []*types.Temperature, w io.Writer, compression bool) error {
 
-	// CompressTemperature
+	writeCreationDate(temperatures)
+
 	if compression {
 		temperatures = CompressTemperature(temperatures)
 	}
 
-	writeCreationDate(temperatures)
-
 	jsonEncoder := json.NewEncoder(w)
 	jsonEncoder.SetIndent("", "  ")
 	err := jsonEncoder.Encode(temperatures)

pkg/logger/default.go

@@ -0,0 +1,70 @@
+package logger
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"sync"
+	"time"
+)
+
+type defaultLogger struct {
+	logLevel LogLevel
+	mutex    *sync.Mutex
+	stdout   io.Writer
+	stderr   io.Writer
+}
+
+func (dl *defaultLogger) Debug(f string, v ...interface{}) {
+	dl.log(LogLevelDebug, f, v...)
+}
+
+func (dl *defaultLogger) Info(f string, v ...interface{}) {
+	dl.log(LogLevelInfo, f, v...)
+}
+
+func (dl *defaultLogger) Warn(f string, v ...interface{}) {
+	dl.log(LogLevelWarn, f, v...)
+}
+
+func (dl *defaultLogger) Error(f string, v ...interface{}) {
+	dl.log(LogLevelError, f, v...)
+}
+
+func (dl *defaultLogger) Fatal(f string, v ...interface{}) {
+	dl.log(LogLevelFatal, f, v...)
+	os.Exit(1)
+}
+
+func (dl *defaultLogger) log(ll LogLevel, f string, v ...interface{}) {
+	layout := "2006/01/02 15:04:05"
+	dw := dl.stdout
+	switch dl.logLevel {
+	case LogLevelError:
+		dw = dl.stderr
+	case LogLevelFatal:
+		dw = dl.stderr
+	}
+	dl.mutex.Lock()
+	fmt.Fprintf(dw, "%v %v: %v \n", time.Now().Format(layout), ll, fmt.Sprintf(f, v...))
+	dl.mutex.Unlock()
+}
+
+func NewDefaultLogger(logLevel LogLevel, time bool) *defaultLogger {
+	return &defaultLogger{
+		logLevel: logLevel,
+		mutex:    new(sync.Mutex),
+		stdout:   os.Stdout,
+		stderr:   os.Stderr,
+	}
+}
+
+func NewSilentLogger() *defaultLogger {
+	return &defaultLogger{
+		logLevel: LogLevelDebug,
+		mutex:    new(sync.Mutex),
+		stdout:   ioutil.Discard,
+		stderr:   ioutil.Discard,
+	}
+}

pkg/logger/interface.go

@@ -0,0 +1,9 @@
+package logger
+
+type Logger interface {
+	Debug(string, ...interface{})
+	Info(string, ...interface{})
+	Warn(string, ...interface{})
+	Error(string, ...interface{})
+	Fatal(string, ...interface{})
+}

pkg/logger/loglevel.go

@@ -0,0 +1,11 @@
+package logger
+
+type LogLevel string
+
+const (
+	LogLevelDebug LogLevel = "DEBUG"
+	LogLevelInfo  LogLevel = "INFO"
+	LogLevelWarn  LogLevel = "WARN"
+	LogLevelError LogLevel = "ERROR"
+	LogLevelFatal LogLevel = "FATAL"
+)

pkg/sensor/dht11.go

@@ -3,6 +3,7 @@ package sensor
 import (
 	"context"
 	"fmt"
+	"math"
 	"sync"
 	"time"
 
@@ -22,7 +23,7 @@ func (s *DHT11) GetSensorModel() types.SensorModel {
 }
 
 // ReadHumidity measure the humidity
-func (s *DHT11) ReadHumidity() (*types.Humidity, error) {
+func (s *DHT11) ReadHumidity(round float64) (*types.Humidity, error) {
 	err := dht.HostInit()
 	if err != nil {
 		return nil, fmt.Errorf("HostInit error: %v", err)
@@ -43,6 +44,10 @@ func (s *DHT11) ReadHumidity() (*types.Humidity, error) {
 		return nil, fmt.Errorf("Read error: %v", err)
 	}
 
+	if round != 0 {
+		humidityValue = math.Round(humidityValue/round) * round
+	}
+
 	humidity := &types.Humidity{
 		HumidityID:       uuid.NewV4().String(),
 		HumidityValue:    humidityValue,
@@ -55,12 +60,12 @@ func (s *DHT11) ReadHumidity() (*types.Humidity, error) {
 }
 
 // ReadHumidityWriteIntoChannel and write values into a channel
-func (s *DHT11) ReadHumidityWriteIntoChannel(humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup) {
+func (s *DHT11) ReadHumidityWriteIntoChannel(round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup) {
 	if wg != nil {
 		defer wg.Done()
 	}
 
-	humidity, err := s.ReadHumidity()
+	humidity, err := s.ReadHumidity(round)
 	if err != nil {
 		errorChannel <- err
 		return
@@ -69,20 +74,20 @@ func (s *DHT11) ReadHumidityWriteIntoChannel(humidityChannel chan<- *types.Humid
 }
 
 // ReadHumidityContinously into a channel until context closed
-func (s *DHT11) ReadHumidityContinously(ctx context.Context, humidityChannel chan<- *types.Humidity, errorChannel chan<- error) {
+func (s *DHT11) ReadHumidityContinously(ctx context.Context, round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error) {
 	for {
 		select {
 		case <-ctx.Done():
 			errorChannel <- fmt.Errorf("%v: Context closed: %v", s.SensorName, ctx.Err())
 			return
 		default:
-			s.ReadHumidityWriteIntoChannel(humidityChannel, errorChannel, nil)
+			s.ReadHumidityWriteIntoChannel(round, humidityChannel, errorChannel, nil)
 		}
 	}
 }
 
 // ReadTemperature measure the temperature
-func (s *DHT11) ReadTemperature() (*types.Temperature, error) {
+func (s *DHT11) ReadTemperature(round float64) (*types.Temperature, error) {
 	err := dht.HostInit()
 	if err != nil {
 		return nil, fmt.Errorf("HostInit error: %v", err)
@@ -103,6 +108,10 @@ func (s *DHT11) ReadTemperature() (*types.Temperature, error) {
 		return nil, fmt.Errorf("Read error: %v", err)
 	}
 
+	if round != 0 {
+		temperatureValue = math.Round(temperatureValue/round) * round
+	}
+
 	temperature := &types.Temperature{
 		TemperatureID:       uuid.NewV4().String(),
 		TemperatureValue:    temperatureValue,
@@ -115,12 +124,12 @@ func (s *DHT11) ReadTemperature() (*types.Temperature, error) {
 }
 
 // ReadTemperatureWriteIntoChannel and write values into a channel
-func (s *DHT11) ReadTemperatureWriteIntoChannel(temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
+func (s *DHT11) ReadTemperatureWriteIntoChannel(round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
 	if wg != nil {
 		defer wg.Done()
 	}
 
-	temperature, err := s.ReadTemperature()
+	temperature, err := s.ReadTemperature(round)
 	if err != nil {
 		errorChannel <- err
 		return
@@ -129,14 +138,14 @@ func (s *DHT11) ReadTemperatureWriteIntoChannel(temperatureChannel chan<- *types
 }
 
 // ReadTemperatureContinously into a channel until context closed
-func (s *DHT11) ReadTemperatureContinously(ctx context.Context, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
+func (s *DHT11) ReadTemperatureContinously(ctx context.Context, round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
 	for {
 		select {
 		case <-ctx.Done():
 			errorChannel <- fmt.Errorf("%v: Context closed: %v", s.SensorName, ctx.Err())
 			return
 		default:
-			s.ReadTemperatureWriteIntoChannel(temperatureChannel, errorChannel, nil)
+			s.ReadTemperatureWriteIntoChannel(round, temperatureChannel, errorChannel, nil)
 		}
 	}
 }

pkg/sensor/dht22.go

@@ -3,6 +3,7 @@ package sensor
 import (
 	"context"
 	"fmt"
+	"math"
 	"sync"
 	"time"
 
@@ -22,7 +23,7 @@ func (s *DHT22) GetSensorModel() types.SensorModel {
 }
 
 // ReadHumidity measure the humidity
-func (s *DHT22) ReadHumidity() (*types.Humidity, error) {
+func (s *DHT22) ReadHumidity(round float64) (*types.Humidity, error) {
 	err := dht.HostInit()
 	if err != nil {
 		return nil, fmt.Errorf("HostInit error: %v", err)
@@ -43,6 +44,10 @@ func (s *DHT22) ReadHumidity() (*types.Humidity, error) {
 		return nil, fmt.Errorf("Read error: %v", err)
 	}
 
+	if round != 0 {
+		humidityValue = math.Round(humidityValue/round) * round
+	}
+
 	humidity := &types.Humidity{
 		HumidityID:       uuid.NewV4().String(),
 		HumidityValue:    humidityValue,
@@ -55,12 +60,12 @@ func (s *DHT22) ReadHumidity() (*types.Humidity, error) {
 }
 
 // ReadHumidityWriteIntoChannel and write values into a channel
-func (s *DHT22) ReadHumidityWriteIntoChannel(humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup) {
+func (s *DHT22) ReadHumidityWriteIntoChannel(round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup) {
 	if wg != nil {
 		defer wg.Done()
 	}
 
-	humidity, err := s.ReadHumidity()
+	humidity, err := s.ReadHumidity(round)
 	if err != nil {
 		errorChannel <- err
 		return
@@ -69,20 +74,20 @@ func (s *DHT22) ReadHumidityWriteIntoChannel(humidityChannel chan<- *types.Humid
 }
 
 // ReadHumidityContinously into a channel until context closed
-func (s *DHT22) ReadHumidityContinously(ctx context.Context, humidityChannel chan<- *types.Humidity, errorChannel chan<- error) {
+func (s *DHT22) ReadHumidityContinously(ctx context.Context, round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error) {
 	for {
 		select {
 		case <-ctx.Done():
 			errorChannel <- fmt.Errorf("%v: Context closed: %v", s.SensorName, ctx.Err())
 			return
 		default:
-			s.ReadHumidityWriteIntoChannel(humidityChannel, errorChannel, nil)
+			s.ReadHumidityWriteIntoChannel(round, humidityChannel, errorChannel, nil)
 		}
 	}
 }
 
 // ReadTemperature measure the temperature
-func (s *DHT22) ReadTemperature() (*types.Temperature, error) {
+func (s *DHT22) ReadTemperature(round float64) (*types.Temperature, error) {
 	err := dht.HostInit()
 	if err != nil {
 		return nil, fmt.Errorf("HostInit error: %v", err)
@@ -103,6 +108,11 @@ func (s *DHT22) ReadTemperature() (*types.Temperature, error) {
 		return nil, fmt.Errorf("Read error: %v", err)
 	}
 
+	// round
+	if round != 0 {
+		temperatureValue = math.Round(temperatureValue/round) * round
+	}
+
 	temperature := &types.Temperature{
 		TemperatureID:       uuid.NewV4().String(),
 		TemperatureValue:    temperatureValue,
@@ -115,12 +125,12 @@ func (s *DHT22) ReadTemperature() (*types.Temperature, error) {
 }
 
 // ReadTemperatureWriteIntoChannel and write values into a channel
-func (s *DHT22) ReadTemperatureWriteIntoChannel(temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
+func (s *DHT22) ReadTemperatureWriteIntoChannel(round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
 	if wg != nil {
 		defer wg.Done()
 	}
 
-	temperature, err := s.ReadTemperature()
+	temperature, err := s.ReadTemperature(round)
 	if err != nil {
 		errorChannel <- err
 		return
@@ -129,14 +139,14 @@ func (s *DHT22) ReadTemperatureWriteIntoChannel(temperatureChannel chan<- *types
 }
 
 // ReadTemperatureContinously into a channel until context closed
-func (s *DHT22) ReadTemperatureContinously(ctx context.Context, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
+func (s *DHT22) ReadTemperatureContinously(ctx context.Context, round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
 	for {
 		select {
 		case <-ctx.Done():
 			errorChannel <- fmt.Errorf("%v: Context closed: %v", s.SensorName, ctx.Err())
 			return
 		default:
-			s.ReadTemperatureWriteIntoChannel(temperatureChannel, errorChannel, nil)
+			s.ReadTemperatureWriteIntoChannel(round, temperatureChannel, errorChannel, nil)
 		}
 	}
 }

pkg/sensor/ds18b20.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"io/ioutil"
+	"math"
 	"path/filepath"
 	"strconv"
 	"strings"
@@ -30,7 +31,7 @@ func (s *DS18B20) GetSensor() *types.Sensor {
 }
 
 // ReadTemperature measure the temperature
-func (s *DS18B20) ReadTemperature() (*types.Temperature, error) {
+func (s *DS18B20) ReadTemperature(round float64) (*types.Temperature, error) {
 
 	data, err := ioutil.ReadFile(filepath.Join("/sys/bus/w1/devices", *s.WireID, "/w1_slave"))
 	if err != nil {
@@ -44,14 +45,21 @@ func (s *DS18B20) ReadTemperature() (*types.Temperature, error) {
 		return nil, ErrReadSensor
 	}
 
-	celsius, err := strconv.ParseFloat(raw[i+2:len(raw)-1], 64)
+	c, err := strconv.ParseFloat(raw[i+2:len(raw)-1], 64)
 	if err != nil {
 		return nil, ErrParseData
 	}
 
+	temperatureValue := c / 1000
+
+	// round
+	if round != 0 {
+		temperatureValue = math.Round(temperatureValue/round) * round
+	}
+
 	temperature := &types.Temperature{
 		TemperatureID:       uuid.NewV4().String(),
-		TemperatureValue:    celsius / 1000,
+		TemperatureValue:    temperatureValue,
 		TemperatureFromDate: time.Now(),
 		TemperatureTillDate: time.Now(),
 		SensorID:            s.SensorID,
@@ -62,12 +70,12 @@ func (s *DS18B20) ReadTemperature() (*types.Temperature, error) {
 }
 
 // ReadTemperatureWriteIntoChannel and write values into a channel
-func (s *DS18B20) ReadTemperatureWriteIntoChannel(temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
+func (s *DS18B20) ReadTemperatureWriteIntoChannel(round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
 	if wg != nil {
 		defer wg.Done()
 	}
 
-	temperature, err := s.ReadTemperature()
+	temperature, err := s.ReadTemperature(round)
 	if err != nil {
 		errorChannel <- err
 		return
@@ -76,14 +84,14 @@ func (s *DS18B20) ReadTemperatureWriteIntoChannel(temperatureChannel chan<- *typ
 }
 
 // ReadTemperatureContinously into a channel until context closed
-func (s *DS18B20) ReadTemperatureContinously(ctx context.Context, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
+func (s *DS18B20) ReadTemperatureContinously(ctx context.Context, round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
 	for {
 		select {
 		case <-ctx.Done():
 			errorChannel <- fmt.Errorf("%v: Context closed: %v", s.SensorName, ctx.Err())
 			return
 		default:
-			s.ReadTemperatureWriteIntoChannel(temperatureChannel, errorChannel, nil)
+			s.ReadTemperatureWriteIntoChannel(round, temperatureChannel, errorChannel, nil)
 		}
 	}
 }

pkg/sensor/interfaces.go

@@ -10,15 +10,15 @@ import (
 // HumiditySensor is a interface to describe required functions to measure humidities
 type HumiditySensor interface {
 	GetSensorModel() types.SensorModel
-	ReadHumidity() (*types.Humidity, error)
+	ReadHumidity(round float64) (*types.Humidity, error)
-	ReadHumidityWriteIntoChannel(humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup)
+	ReadHumidityWriteIntoChannel(round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup)
-	ReadHumidityContinously(ctx context.Context, humidityChannel chan<- *types.Humidity, errorChannel chan<- error)
+	ReadHumidityContinously(ctx context.Context, round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error)
 }
 
 // TemperatureSensor is a interface to describe required functions to measure temperatures
 type TemperatureSensor interface {
 	GetSensorModel() types.SensorModel
-	ReadTemperature() (*types.Temperature, error)
+	ReadTemperature(round float64) (*types.Temperature, error)
-	ReadTemperatureWriteIntoChannel(temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup)
+	ReadTemperatureWriteIntoChannel(round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup)
-	ReadTemperatureContinously(ctx context.Context, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error)
+	ReadTemperatureContinously(ctx context.Context, round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error)
 }

pkg/sensor/sensor.go

@@ -3,7 +3,6 @@ package sensor
 import (
 	"context"
 	"fmt"
-	"math"
 	"sync"
 
 	"github.com/go-flucky/flucky/pkg/internal/collect"
@@ -20,7 +19,7 @@ func ReadHumidities(humiditySensors []HumiditySensor, round float64) ([]*types.H
 	wg.Add(len(humiditySensors))
 
 	for _, humiditySensor := range humiditySensors {
-		go humiditySensor.ReadHumidityWriteIntoChannel(humidityChannel, errorChannel, wg)
+		go humiditySensor.ReadHumidityWriteIntoChannel(round, humidityChannel, errorChannel, wg)
 	}
 
 	wg.Wait()
@@ -32,31 +31,25 @@ func ReadHumidities(humiditySensors []HumiditySensor, round float64) ([]*types.H
 
 	humidities := collect.Humidities(humidityChannel)
 
-	if round != 0 {
-		for _, humidity := range humidities {
-			humidity.HumidityValue = math.Round(humidity.HumidityValue/round) * round
-		}
-	}
-
 	return humidities, nil
 }
 
 // ReadHumiditiesWriteIntoChannel reads the humidity values of humidity sensors and writes them into a channel
-func ReadHumiditiesWriteIntoChannel(ctx context.Context, humiditySensors []HumiditySensor, humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup) {
+func ReadHumiditiesWriteIntoChannel(ctx context.Context, humiditySensors []HumiditySensor, round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup) {
 	for _, humiditySensor := range humiditySensors {
-		humiditySensor.ReadHumidityWriteIntoChannel(humidityChannel, errorChannel, wg)
+		humiditySensor.ReadHumidityWriteIntoChannel(round, humidityChannel, errorChannel, wg)
 	}
 }
 
 // ReadHumiditiesContinuously reads the humidity values of humidity sensors continuously and writes them into a channel
-func ReadHumiditiesContinuously(ctx context.Context, humiditySensors []HumiditySensor, humidityChannel chan<- *types.Humidity, errorChannel chan<- error) {
+func ReadHumiditiesContinuously(ctx context.Context, humiditySensors []HumiditySensor, round float64, humidityChannel chan<- *types.Humidity, errorChannel chan<- error) {
 	for {
 		select {
 		case <-ctx.Done():
 			errorChannel <- fmt.Errorf("Context closed: %v", ctx.Err())
 			return
 		default:
-			ReadHumiditiesWriteIntoChannel(ctx, humiditySensors, humidityChannel, errorChannel, nil)
+			ReadHumiditiesWriteIntoChannel(ctx, humiditySensors, round, humidityChannel, errorChannel, nil)
 		}
 	}
 }
@@ -70,7 +63,7 @@ func ReadTemperatures(temperatureSensors []TemperatureSensor, round float64) ([]
 	wg.Add(len(temperatureSensors))
 
 	for _, temperatureSensor := range temperatureSensors {
-		go temperatureSensor.ReadTemperatureWriteIntoChannel(temperatureChannel, errorChannel, wg)
+		go temperatureSensor.ReadTemperatureWriteIntoChannel(round, temperatureChannel, errorChannel, wg)
 	}
 
 	wg.Wait()
@@ -82,32 +75,25 @@ func ReadTemperatures(temperatureSensors []TemperatureSensor, round float64) ([]
 
 	temperatures := collect.Temperatures(temperatureChannel)
 
-	if round != 0 {
-		for _, temperature := range temperatures {
-			temperature.TemperatureValue = math.Round(temperature.TemperatureValue/round) * round
-		}
-	}
-
 	return temperatures, nil
 }
 
 // ReadTemperaturesWriteIntoChannel reads the temperature values of temperature sensors and writes them into a channel
-func ReadTemperaturesWriteIntoChannel(ctx context.Context, temperatureSensors []TemperatureSensor, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
+func ReadTemperaturesWriteIntoChannel(ctx context.Context, temperatureSensors []TemperatureSensor, round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
 	for _, temperatureSensor := range temperatureSensors {
-		temperatureSensor.ReadTemperatureWriteIntoChannel(temperatureChannel, errorChannel, wg)
+		temperatureSensor.ReadTemperatureWriteIntoChannel(round, temperatureChannel, errorChannel, wg)
 	}
-
 }
 
 // ReadTemperaturesContinuously reads the temperature values of temperature sensors continuously and writes them into a chann
-func ReadTemperaturesContinuously(ctx context.Context, temperatureSensors []TemperatureSensor, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
+func ReadTemperaturesContinuously(ctx context.Context, temperatureSensors []TemperatureSensor, round float64, temperatureChannel chan<- *types.Temperature, errorChannel chan<- error) {
 	for {
 		select {
 		case <-ctx.Done():
 			errorChannel <- fmt.Errorf("Context closed: %v", ctx.Err())
 			return
 		default:
-			ReadTemperaturesWriteIntoChannel(ctx, temperatureSensors, temperatureChannel, errorChannel, nil)
+			ReadTemperaturesWriteIntoChannel(ctx, temperatureSensors, round, temperatureChannel, errorChannel, nil)
 		}
 	}
 }