voltage hack

src/udi/handlers/mbgw3/mbgw3.go

@@ -74,12 +74,22 @@ func (self *Mbgw3Handler) Handle(message handler.MessageT) {
 
   measurement.Values = make(map[string]database.VariableType)
   unitMap := map[string]string { "Energy": "Wh", "Power": "W", "Voltage": "V", "Current": "A", "Volume": "m3" }
+  keyCount := make(map[string]int)
+  
   for k, v := range observation.Values {
     unit, exists := unitMap[k]
     if ! exists {
       unit = "Unmapped Unit"
     }
-    measurement.Values[k] = database.VariableType {
+    
+    // Check if key already exists and create unique key if needed
+    keyCount[k]++
+    uniqueKey := k
+    if keyCount[k] > 1 {
+      uniqueKey = k + strconv.Itoa(keyCount[k])
+    }
+    
+    measurement.Values[uniqueKey] = database.VariableType {
       Label: "",
       Variable: k,
       Unit: unit,