saerbeck query

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.21-alpine as builder
+FROM golang:1.22.5-alpine3.20 as builder
 
 RUN mkdir -p /go/src
 COPY ./src/ /go/src

queries/hottis.sql

@@ -73,6 +73,7 @@ create or replace view co2_v as
          cast(m.values->'CO2concentration'->>'value' as float) as co2concentration,
          cast(m.values->'Humidity'->>'value' as float) as humidity,
          cast(m.values->'Temperature'->>'value' as float) as temperature,
+         cast(m.values->'Brightness'->>'value' as int) as brightness,
          m.device as device,
          d.attributes->>'Label' as label 
     from measurements m, devices d

queries/saerbeck.sql

@@ -0,0 +1,43 @@
+create or replace view badesee_temperature_v as
+  select time, 
+         cast(values->'Temp_Red'->>'value' as float) as Temp1,
+         cast(values->'Temp_White'->>'value' as float) as Temp2,
+         cast(values->'Temp_Black'->>'value' as float) as Temp3,
+         cast(values->'Battery'->>'value' as float) as battery,
+         attributes->>'Status' as status,
+         device
+    from measurements
+    where application = 'de-hottis-saerbeck-monitoring' and
+          device = 'eui-a84041318187ec13';
+
+create or replace view cubecell_threeway_temperature2_v as
+  select time,
+         cast(values->'Temperature2'->>'value' as float) as value,
+         values->'Temperature2'->>'label' as label
+    from measurements
+    where application = 'de-hottis-saerbeck-monitoring' and
+    device = 'eui-70b3d57ed0068fa4';
+
+create or replace view cubecell_threeway_temperature1_v as
+  select time,
+         cast(values->'Temperature1'->>'value' as float) as value,
+         values->'Temperature1'->>'label' as label
+    from measurements
+    where application = 'de-hottis-saerbeck-monitoring' and
+    device = 'eui-70b3d57ed0068fa4';
+
+create or replace view cubecell_threeway_temperature3_v as
+  select time,
+         cast(values->'Temperature3'->>'value' as float) as value,
+         values->'Temperature3'->>'label' as label
+    from measurements
+    where application = 'de-hottis-saerbeck-monitoring' and
+    device = 'eui-70b3d57ed0068fa4';
+
+create or replace view cubecell_threeway_battery_v as
+  select time,
+         cast(values->'Battery'->>'value' as float) as value,
+         values->'Battery'->>'label' as label
+    from measurements
+    where application = 'de-hottis-saerbeck-monitoring' and
+    device = 'eui-70b3d57ed0068fa4';

src/udi/ENVDB.uditest

@@ -1,6 +1,6 @@
-PGUSER="uditest"
+PGUSER="udi-hottis"
 PGHOST=`kubectl get services traefik -n system -o jsonpath="{.status.loadBalancer.ingress[0].ip}"`
-PGPASSWORD=`kubectl get secrets uditest-db-cred -n udi-test -o jsonpath="{.data.PGPASSWORD}" | base64 --decode`
+PGPASSWORD=`kubectl get secrets default-udi-db-cred -n udi -o jsonpath="{.data.PGPASSWORD}" | base64 --decode`
 PGSSLMODE=require
 PGDATABASE="uditest"
 export PGUSER PGHOST PGPASSWORD PGSSLMODE PGDATABASE

src/udi/config-test-ttn.json

@@ -1,7 +1,7 @@
 {
   "mqtt": {
     "broker": "ssl://eu1.cloud.thethings.network:8883",
-    "username": "de-hottis-lora-test1@ttn",
+    "username": "de-hottis-saerbeck-monitoring@ttn",
     "tlsEnable": "true"
   },
   "topicMappings": [

src/udi/config-test.json

@@ -4,72 +4,6 @@
     "tlsEnable": "false"
   },
   "topicMappings": [
-    {
-      "topics": [ "IoT/PV/Values" ],
-      "handler": "PV",
-      "id": "PV",
-      "config": {
-        "attributes": {
-        }
-      }
-    },
-    {
-      "topics": [ "IoT/MBGW3/Measurement" ],
-      "handler": "MBGW3",
-      "id": "MBGW3",
-      "config": {
-        "attributes": {
-        }
-      }
-    },
-    {
-      "topics": [ "dt1/ai/periodic/1" ],
-      "handler": "DT1T",
-      "id": "DT1T.0",
-      "config": {
-        "attributes": {
-          "Application": "Temperature Wago",
-          "Device": "Freezer",
-          "HardLow": "-273",
-          "SoftLow": "-50",
-          "SoftHigh": "20",
-          "HardHigh": "100"
-        }
-      }
-    },
-    {
-      "topics": [ "dt1/ai/periodic/3" ],
-      "handler": "DT1T",
-      "id": "DT1T.1",
-      "config": {
-        "attributes": {
-          "Application": "Temperature Wago",
-          "Device": "Outdoor",
-          "HardLow": "-273",
-          "SoftLow": "-60",
-          "SoftHigh": "60",
-          "HardHigh": "100"
-        }
-      }
-    },
-    {
-      "topics": [ "IoT/OneWireGW/Bus 1/#" ],
-      "handler": "SVER",
-      "id": "SVER0",
-      "config": {
-        "databaseConnStr": "",
-        "attributes": {
-          "application": "Temperature Heating",
-          "payloadRegex": "(\\d+(\\.\\d+)?)\\s*([^0-9\\s]\\S*)",
-          "deviceFrom": "topic", 
-          "devicePart": "3",
-          "valueFrom": "payload",
-          "valuePart": "1",
-          "unitFrom": "payload",
-          "unitPart": "3"
-        }
-      }
-    },
     {
       "topics": [ "NR/Multisensor/+/Temperatur" ],
       "handler": "SVEJ",
@@ -85,46 +19,18 @@
       }
     },
     {
-      "topics": [ "NR/Multisensor/+/Feuchte" ],
+      "topics": [ "zigbee2mqtt/+" ],
       "handler": "SVEJ",
       "id": "SVEJ1",
       "config": {
         "databaseConnStr": "",
         "attributes": {
-          "application": "Humidity Multisensor",
-          "deviceSelector": "T:2",
-          "valueSelector": "J:$.CurrentRelativeHumidity",
-          "unitSelector": "C:%"
-        }
-      }
-    },
-    {
-      "topics": [ "shellyplusht/+/status/temperature:0" ],
-      "handler": "SVEJ",
-      "id": "SVEJ2",
-      "config": {
-        "databaseConnStr": "",
-        "attributes": {
-          "application": "Temperature Shelly Plus HT",
-          "deviceSelector": "T:1",
-          "valueSelector": "J:$.tC",
+          "application": "Temperature Multisensor",
+          "deviceSelector": "L:1",
+          "valueSelector": "J:$.temperature",
           "unitSelector": "C:°C"
         }
       }
-    },
-    {
-      "topics": [ "shellyplusht/+/status/humidity:0" ],
-      "handler": "SVEJ",
-      "id": "SVE4",
-      "config": {
-        "databaseConnStr": "",
-        "attributes": {
-          "application": "Humidity Shelly Plus HT",
-          "deviceSelector": "T:1",
-          "valueSelector": "J:$.rh",
-          "unitSelector": "C:%"
-        }
-      }
     }
   ],
   "archiver": {

src/udi/database/database.go

@@ -70,5 +70,27 @@ func (self *DatabaseHandle) GetDeviceByLabelAndApplication(applicationLabel stri
   return &device, nil
 }
 
+func (self *DatabaseHandle) GetDeviceByLabel(deviceLabel string) (*Device, error) {
+  if ! self.initialized {
+    err := fmt.Errorf("Database connection not initialized")
+    return nil, err
+  }
+
+  var device Device
+  result := self.dbh.
+    Preload("Application").
+    Preload("DeviceType").
+    Where("devices.label = ?", deviceLabel).
+    First(&device)
+
+  if result.Error != nil {
+    err := fmt.Errorf("Query failed: %s", result.Error)
+    return nil, err
+  }
+
+  return &device, nil
+}
+
+
 
 

src/udi/go.mod

@@ -1,24 +1,25 @@
 module udi
 
-go 1.21.3
+go 1.22.3
 
 require (
 	github.com/eclipse/paho.mqtt.golang v1.4.3
 	github.com/google/uuid v1.4.0
 	github.com/oliveagle/jsonpath v0.0.0-20180606110733-2e52cf6e6852
-	gorm.io/driver/postgres v1.5.4
-	gorm.io/gorm v1.25.5
+	gorm.io/driver/postgres v1.5.9
+	gorm.io/gorm v1.25.11
 )
 
 require (
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
-	github.com/jackc/pgx/v5 v5.4.3 // indirect
+	github.com/jackc/pgx/v5 v5.5.5 // indirect
+	github.com/jackc/puddle/v2 v2.2.1 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
-	golang.org/x/crypto v0.19.0 // indirect
-	golang.org/x/net v0.20.0 // indirect
-	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/crypto v0.25.0 // indirect
+	golang.org/x/net v0.27.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
 )

src/udi/go.sum

@@ -11,8 +11,10 @@ github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsI
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a h1:bbPeKD0xmW/Y25WS6cokEszi5g+S0QxI/d45PkRi7Nk=
 github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.4.3 h1:cxFyXhxlvAifxnkKKdlxv8XqUf59tDlYjnV5YYfsJJY=
-github.com/jackc/pgx/v5 v5.4.3/go.mod h1:Ig06C2Vu0t5qXC60W8sqIthScaEnFvojjj9dSljmHRA=
+github.com/jackc/pgx/v5 v5.5.5 h1:amBjrZVmksIdNjxGW/IiIMzxMKZFelXbUoPNb+8sjQw=
+github.com/jackc/pgx/v5 v5.5.5/go.mod h1:ez9gk+OAat140fv9ErkZDYFWmXLfV+++K0uAOiwgm1A=
+github.com/jackc/puddle/v2 v2.2.1 h1:RhxXJtFG022u4ibrCSMSiu5aOq1i77R3OHKNJj77OAk=
+github.com/jackc/puddle/v2 v2.2.1/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
@@ -26,25 +28,19 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc=
-golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
-golang.org/x/crypto v0.19.0 h1:ENy+Az/9Y1vSrlrvBSyna3PITt4tiZLf7sgCjZBX7Wo=
-golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
-golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
-golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
-golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
-golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
-golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/crypto v0.25.0 h1:ypSNr+bnYL2YhwoMt2zPxHFmbAN1KZs/njMG3hxUp30=
+golang.org/x/crypto v0.25.0/go.mod h1:T+wALwcMOSE0kXgUAnPAHqTLW+XHgcELELW8VaDgm/M=
+golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys=
+golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE=
+golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
+golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
+golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gorm.io/driver/postgres v1.5.4 h1:Iyrp9Meh3GmbSuyIAGyjkN+n9K+GHX9b9MqsTL4EJCo=
-gorm.io/driver/postgres v1.5.4/go.mod h1:Bgo89+h0CRcdA33Y6frlaHHVuTdOf87pmyzwW9C/BH0=
-gorm.io/gorm v1.25.5 h1:zR9lOiiYf09VNh5Q1gphfyia1JpiClIWG9hQaxB/mls=
-gorm.io/gorm v1.25.5/go.mod h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8=
+gorm.io/driver/postgres v1.5.9 h1:DkegyItji119OlcaLjqN11kHoUgZ/j13E0jkJZgD6A8=
+gorm.io/driver/postgres v1.5.9/go.mod h1:DX3GReXH+3FPWGrrgffdvCk3DQ1dwDPdmbenSkweRGI=
+gorm.io/gorm v1.25.11 h1:/Wfyg1B/je1hnDx3sMkX+gAlxrlZpn6X0BXRlwXlvHg=
+gorm.io/gorm v1.25.11/go.mod h1:xh7N7RHfYlNc5EmcI/El95gXusucDrQnHXe0+CgWcLQ=

src/udi/handlers/handler/handler.go

@@ -36,7 +36,7 @@ func (self *CommonHandler) GetId() string {
 }
 
 func (self *CommonHandler) Lost(msg string, err error, message MessageT) {
-  if err != nil {
+  if err == nil {
     log.Printf("Error: %s, message %s is lost", msg, message)
   } else {
     log.Printf("Error: %s (%s), message %s is lost", msg, err, message)

src/udi/handlers/svej/svej.go

@@ -79,16 +79,18 @@ func New(id string, config config.HandlerConfigT) handler.Handler {
   return t
 }
 
-func extractionHelper(subTopics []string, jPayload interface{}, selector string, jp *jsonpath.Compiled) (string, error) {
+func (self *SingleValueExtractorJsonpathHandler) ExtractionHelper(subTopics []string, jPayload interface{}, selector string, jp *jsonpath.Compiled) (string, error) {
   var res string
   switch selector[:2] {
   case "J:":
+    // extract using jsonpath from payload
     r, e := jp.Lookup(jPayload)
     if e != nil {
       return "", fmt.Errorf("jp.Lookup failed with %s", e)
     }
     res = fmt.Sprint(r)
   case "T:":
+    // T: extract from topic
     i, e := strconv.Atoi(selector[2:])
     if e != nil {
       return "", fmt.Errorf("Atoi failed with %s", e)
@@ -97,7 +99,26 @@ func extractionHelper(subTopics []string, jPayload interface{}, selector string,
       return "", fmt.Errorf("not enough subtopics")
     }
     res = subTopics[i]
+  case "L:":
+    // L: extract from topic and later match against devices table in database
+    i, e := strconv.Atoi(selector[2:])
+    if e != nil {
+      return "", fmt.Errorf("Atoi failed with %s", e)
+    }
+    if i >= len(subTopics) {
+      return "", fmt.Errorf("not enough subtopics")
+    }
+    ext := subTopics[i]
+    lookup, err1b := self.dbh.GetDeviceByLabel(ext)
+    if err1b != nil {
+      log.Printf("ext lookup %s failed: %v", ext, err1b)
+      res = ext
+    } else {
+      log.Printf("ext: %s", lookup)
+      res = ext
+    }
   case "C:":
+    // use constant value
     res = selector[2:]
   default:
     return "", fmt.Errorf("Invalid selector: %s", selector[:2])
@@ -111,14 +132,14 @@ func (self *SingleValueExtractorJsonpathHandler) Handle(message handler.MessageT
     self.Lost("Handler is not marked as ready", nil, message)
     return
   }
-  //log.Printf("Handler SingleValueExtractorJsonpath %d processing %s -> %s", self.Id, message.Topic, message.Payload)
+  log.Printf("Handler SingleValueExtractorJsonpath %d processing %s -> %s", self.Id, message.Topic, message.Payload)
 
   var measurement database.Measurement
   measurement.Time = time.Now()
   measurement.Application = self.application
   
   subTopics := strings.Split(message.Topic, "/")
-  //log.Printf("Subtopics: %s", strings.Join(subTopics, ", "))
+  log.Printf("Subtopics: %s", strings.Join(subTopics, ", "))
   var jPayload interface{}
   err := json.Unmarshal([]byte(message.Payload), &jPayload)
   if err != nil {
@@ -126,17 +147,20 @@ func (self *SingleValueExtractorJsonpathHandler) Handle(message handler.MessageT
     return
   }
 
-  device, err1 := extractionHelper(subTopics, jPayload, self.deviceSelector, self.deviceJsonpath)
+  device, err1 := self.ExtractionHelper(subTopics, jPayload, self.deviceSelector, self.deviceJsonpath)
   if err1 != nil {
     self.Lost("Device extraction failed", err1, message)
     return
   }
-  value, err2 := extractionHelper(subTopics, jPayload, self.valueSelector, self.valueJsonpath)
+  log.Printf("device: %s", device) 
+
+  value, err2 := self.ExtractionHelper(subTopics, jPayload, self.valueSelector, self.valueJsonpath)
   if err2 != nil {
     self.Lost("Value extraction failed", err2, message)
     return
   }
-  unit, err3 := extractionHelper(subTopics, jPayload, self.unitSelector, self.unitJsonpath)
+
+  unit, err3 := self.ExtractionHelper(subTopics, jPayload, self.unitSelector, self.unitJsonpath)
   if err3 != nil {
     self.Lost("Unit extraction failed", err3, message)
     return
@@ -152,7 +176,7 @@ func (self *SingleValueExtractorJsonpathHandler) Handle(message handler.MessageT
   measurement.Values = make(map[string]database.VariableType)
   measurement.Values["Value"] = variable
 
-  //log.Printf("Prepared measurement item: %s", measurement)
+  log.Printf("Prepared measurement item: %s", measurement)
   self.dbh.StoreMeasurement(&measurement)
   self.S()
 }

src/udi/handlers/ttn/models/draginoLsn50/draginoLsn50.go

@@ -20,9 +20,9 @@ type message struct {
   ALARM_status string `json:"ALARM_status"`
   Bat float32 `json:"BatV"`
   Work_mode string `json:"Work_mode"`
-  Temp_Black string `json:"Temp_Black"`
-  Temp_Red string `json:"Temp_Red"`
-  Temp_White string `json:"Temp_White"`
+  Temp_Black float32 `json:"Temp_Black"`
+  Temp_Red float32 `json:"Temp_Red"`
+  Temp_White float32 `json:"Temp_White"`
 }
 
 func Parse(fPort int, decodedPayload []byte, _ string, variables *map[string]database.VariableType, attributes *map[string]interface{}, device *database.Device) error {

src/udi/handlers/ttn/models/hottisScd30/hottisScd30.go

@@ -14,6 +14,7 @@ type hottisScd30Values struct {
   CO2Conc int32
   Temp int32
   Hum int32
+  Bri int32
 }
 
 
@@ -35,6 +36,7 @@ func Parse(fPort int, _ []byte, frmPayload string, variables *map[string]databas
   var co2concentration float32 = float32(values.CO2Conc) / 100;
   var temperature float32 = float32(values.Temp) / 100;
   var humidity float32 = float32(values.Hum) / 100;
+
   // log.Printf("CO2: %f, Temp: %f, Hum: %f, Status: %d", co2concentration, temperature, humidity, values.Status)
 
   (*variables)["CO2concentration"] = database.VariableType {
@@ -55,6 +57,12 @@ func Parse(fPort int, _ []byte, frmPayload string, variables *map[string]databas
     Unit: "%",
     Value: humidity,
   }
+  (*variables)["Brightness"] = database.VariableType {
+    Label: "Brightness",
+    Variable: "Brightness",
+    Unit: "",
+    Value: values.Bri,
+  }
 
   (*attributes)["Status"] = values.Status
   return nil

src/udi/handlers/ttn/models/hottisThreeWayThermometer/hottisThreeWayThermometer.go

@@ -0,0 +1,93 @@
+package hottisThreeWayThermometer
+
+import (
+  "log"
+  "fmt"
+  "bytes"
+  "strconv"
+  "encoding/base64"
+  "encoding/binary"
+  "udi/database"
+)
+
+type hottisThreeWayThermometerValues struct {
+  Status uint8
+  Battery uint16
+  SensorAddress1 uint64
+  Value1 int32
+  SensorAddress2 uint64
+  Value2 int32
+  SensorAddress3 uint64
+  Value3 int32 
+}
+
+func getSensorName(sensorsMap *map[string]interface{}, sensorAddress uint64) string {
+  key := strconv.FormatUint(sensorAddress, 10)
+	if sensorName, exists := (*sensorsMap)[key].(string); exists {
+		return sensorName
+	}
+	return "Sensor" + key
+}
+
+func Parse(fPort int, _ []byte, frmPayload string, variables *map[string]database.VariableType, attributes *map[string]interface{}, device *database.Device) error {
+  deviceAttrs := (*device).Attributes
+  sensorsMap := deviceAttrs["Sensors"].(map[string]interface{})
+
+  if fPort != 2 {
+    return fmt.Errorf("Unexpected fPort %d", fPort)
+  }
+
+  b, err := base64.StdEncoding.DecodeString(frmPayload)
+  if err != nil {
+    return fmt.Errorf("Unable to base64-decode payload: %v", err)
+  }
+
+  var values hottisThreeWayThermometerValues
+  err = binary.Read(bytes.NewReader(b), binary.LittleEndian, &values)
+  if err != nil {
+    return fmt.Errorf("Unable to cast into struct: %v", err)
+  }
+
+  var battery float32 = float32(values.Battery) / 1000.0
+  var value1 float32 = float32(values.Value1) / 128.0
+  var value2 float32 = float32(values.Value2) / 128.0
+  var value3 float32 = float32(values.Value3) / 128.0
+
+  //log.Printf("Status: %d, Battery: %d", values.Status, values.Battery);
+  log.Printf("Status: %d", values.Status);
+  log.Printf("Battery: %d, %f", values.Battery, battery);
+  log.Printf("Sensor1: Addr: %d, Value: %f", values.SensorAddress1, value1);
+  log.Printf("Sensor2: Addr: %d, Value: %f", values.SensorAddress2, value2);
+  log.Printf("Sensor3: Addr: %d, Value: %f", values.SensorAddress3, value3);
+
+  (*variables)["Battery"] = database.VariableType {
+    Label: "Battery",
+    Variable: "Voltage",
+    Unit: "V",
+    Value: battery,
+  }
+  (*variables)["Temperature1"] = database.VariableType {
+    Label: getSensorName(&sensorsMap, values.SensorAddress1),
+    Variable: "Temperature",
+    Unit: "°C",
+    Value: value1,
+  }
+  (*variables)["Temperature2"] = database.VariableType {
+    Label: getSensorName(&sensorsMap, values.SensorAddress2),
+    Variable: "Temperature",
+    Unit: "°C",
+    Value: value2,
+  }
+  (*variables)["Temperature3"] = database.VariableType {
+    Label: getSensorName(&sensorsMap, values.SensorAddress3),
+    Variable: "Temperature",
+    Unit: "°C",
+    Value: value3,
+  }
+
+  (*attributes)["Status"] = values.Status
+  (*attributes)["SensorAddress1"] = values.SensorAddress1
+  (*attributes)["SensorAddress2"] = values.SensorAddress2
+  (*attributes)["SensorAddress3"] = values.SensorAddress3
+  return nil
+}

src/udi/handlers/ttn/ttn.go

@@ -14,6 +14,7 @@ import (
   "udi/handlers/ttn/models/draginoLsn50"
   "udi/handlers/ttn/models/rawPayloadPrinter"
   "udi/handlers/ttn/models/hottisScd30"
+  "udi/handlers/ttn/models/hottisThreeWayThermometer"
   "udi/database"
 )
 
@@ -152,6 +153,8 @@ func (self *TTNHandler) Handle(message handler.MessageT) {
     parser = rawPayloadPrinter.Parse
   case "hottis-scd30":
     parser = hottisScd30.Parse
+  case "hottis-threeway-thermometer":
+    parser = hottisThreeWayThermometer.Parse
   default:
     self.Lost(fmt.Sprintf("No parser found for %s", device.DeviceType.ModelIdentifier), nil, message)
     return