clean up scale

lib/xiaomi/scale/scale_v2.go

@@ -3,7 +3,6 @@ package scale
 import (
 	"bytes"
 	"encoding/binary"
-	"log"
 	"time"
 
 	"github.com/go-ble/ble"
@@ -17,7 +16,6 @@ var XiaomiScaleV2UUID ble.UUID = []byte{0x1b, 0x18}
 
 // ParseXiaomiScaleV2 parses V2 scale service data
 func ParseXiaomiScaleV2(writeAPI *influxdb2_api.WriteAPI, logger *zap.Logger, timestamp time.Time, detector string, description string, advertisement ble.Advertisement, index int, sd ble.ServiceData) {
-
 	var scaleData struct {
 		RawUnit     uint8
 		ControlByte uint8
@@ -56,23 +54,8 @@ func ParseXiaomiScaleV2(writeAPI *influxdb2_api.WriteAPI, logger *zap.Logger, ti
 	}
 
 	if isStabilized {
-		loc, err := time.LoadLocation("Local")
-		if err != nil {
-			log.Fatal(err)
-		}
-		scaleTimestamp := time.Date(
-			int(scaleData.Year),
-			time.Month(scaleData.Month),
-			int(scaleData.Day),
-			int(scaleData.Hour),
-			int(scaleData.Minute),
-			int(scaleData.Second),
-			0,
-			loc)
-		difference := timestamp.Sub(scaleTimestamp)
-
 		point := influxdb2.NewPointWithMeasurement("weight")
-		point.SetTime(scaleTimestamp)
+		point.SetTime(timestamp)
 		if detector != "" {
 			point.AddTag("detector", detector)
 		}
@@ -82,13 +65,25 @@ func ParseXiaomiScaleV2(writeAPI *influxdb2_api.WriteAPI, logger *zap.Logger, ti
 		}
 		point.AddTag("unit", "kg")
 		point.AddTag("original_unit", originalUnit)
-		point.AddField("time_difference", difference.Seconds())
 		point.AddField("value", weight)
-		if hasImpedance {
-			point.AddField("impedance", scaleData.Impedance)
-		}
 		(*writeAPI).WritePoint(point)
 
+		if hasImpedance {
+			point := influxdb2.NewPointWithMeasurement("impedance")
+			point.SetTime(timestamp)
+			if detector != "" {
+				point.AddTag("detector", detector)
+			}
+			point.AddTag("address", advertisement.Addr().String())
+			if description != "" {
+				point.AddTag("description", description)
+			}
+			point.AddTag("unit", "kg")
+			point.AddField("impedance", scaleData.Impedance)
+			(*writeAPI).WritePoint(point)
+
+		}
+
 		logger.Debug("xiaomi v2 scale",
 			zap.String("name", advertisement.LocalName()),
 			zap.String("source", advertisement.Addr().String()),
@@ -96,7 +91,5 @@ func ParseXiaomiScaleV2(writeAPI *influxdb2_api.WriteAPI, logger *zap.Logger, ti
 			zap.Bool("is_stabilized", isStabilized),
 			zap.Bool("has_impedance", hasImpedance),
 			zap.Float64("weight", weight))
-
 	}
-
 }