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OY1320.go
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OY1320.go
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package main
import (
"encoding/json"
"fmt"
"strings"
"time"
)
type OY1320Data struct {
Time time.Time
MeterReading float64
Status string
}
type decoded1320data struct {
DeviceEui string `json:"deviceEui"`
Seqno uint32 `json:"seqno"`
Port uint8 `json:"port"`
AppEui string `json:"appEui"`
Time string `json:"time"`
DeviceTx devicetx `json:"deviceTx,omitempty"`
GatewayRx []gatewayrx `json:"gatewayRx,omitempty"`
Data []OY1320Data `json:"data,omitempty"`
}
/*
"payload": {"applicationID": "20","applicationName": "TalkpoolOY","deviceName": "OY1100","devEUI": "20-56-31-55-54-33-57-14","rxInfo": [{"mac": "C0-EE-40-FF-FF-29-3D-F8","rssi": -33,"loRaSNR": 7.2,"name": "GW name","latitude": "","longitude": "","altitude": ""}],"txInfo": {"frequency": "X","dataRate": {"modulation": "LORA","bandwidth": "X","spreadFactor": "X"},"adr": true,"codeRate": "X"},"fCnt": 25,"fPort": 1,"data": [{"time": 1547008071054,"temp": 23.7,"hum": 62.1},{"time": 1547005891054,"temp": 23.7,"hum": 62},{"time": 1547010251054,"temp": 23.6,"hum": 60.8}]}
*/
func hexaNumberToInteger(hexaString string) string {
// replace 0x or 0X with empty String
numberStr := strings.Replace(hexaString, "0x", "", -1)
numberStr = strings.Replace(numberStr, "0X", "", -1)
return numberStr
}
// func parseOY1320Data(receivedtime time.Time, port uint8, receiveddata string) []OY1320Data {
// //Input Validation
// //Length should be a multiple of 6
// databytes, _ := base64.StdEncoding.DecodeString(receiveddata)
// var parsedvalues []OY1320Data
// dst := ByteToHex(databytes)
// fmt.Println("Hex=", dst)
// first := dst[4:12]
// fmt.Println("MeterHex=", first)
// strMR, err := strconv.ParseInt(hexaNumberToInteger(first), 16, 64) //strconv.ParseInt(first, 10, 64)
// if err == nil {
// fmt.Println(err)
// }
// parsedvalues = make([]OY1320Data, 1)
// // parsedvalues[0].MeterReading=strMR
// if len(databytes)%6 == 0 {
// capacity := len(databytes) / 6
// for index := 0; index < capacity; index++ {
// parsedvalues[index].MeterReading = toFixed(float64(strMR)*0.001, 4)
// parsedvalues[index].Status = "0"
// parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
// }
// }
// if len(databytes)%9 == 0 {
// capacity := len(databytes) / 9
// for index := 0; index < capacity; index++ {
// parsedvalues[index].MeterReading = toFixed(float64(strMR)*0.001, 4)
// parsedvalues[index].Status = fmt.Sprint(databytes[8])
// parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
// }
// }
// //Old COde Commented By Adil
// // switch port {
// // case 1: //status
// // case 2: //periodic single measurement
// // if len(databytes) != 5 {
// // return nil
// // }
// // //fmt.Println("databytes", databytes)
// // capacity := len(databytes) / 5
// // parsedvalues = make([]OY1320Data, capacity)
// // for index := 0; index < capacity; index++ {
// // parsedvalues[index].Temperature = float32((int32(databytes[index*5])<<4|(int32(databytes[(index*5)+2])&0xF0)>>4)-800) / 10.0
// // parsedvalues[index].Humidity = float32((int32(databytes[(index*5)+1])<<4|(int32(databytes[(index*5)+2])&0x0F))-250) / 10.0
// // parsedvalues[index].Co2 = uint16(databytes[(index*7)+3])<<8 + uint16(databytes[(index*7)+4])
// // parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
// // }
// // case 3: //periodic group measurement
// // if len(databytes)%5 != 1 {
// // return nil
// // }
// // databytes = databytes[1:]
// // capacity := len(databytes) / 5
// // parsedvalues = make([]OY1320Data, capacity)
// // for index := 0; index < capacity; index++ {
// // parsedvalues[index].Temperature = float32((int32(databytes[index*5])<<4|(int32(databytes[(index*5)+2])&0xF0)>>4)-800) / 10.0
// // parsedvalues[index].Humidity = float32((int32(databytes[(index*5)+1])<<4|(int32(databytes[(index*5)+2])&0x0F))-250) / 10.0
// // parsedvalues[index].Co2 = uint16(databytes[(index*7)+3])<<8 + uint16(databytes[(index*7)+4])
// // parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
// // }
// // default:
// // return nil
// // }
// return parsedvalues
// }
func publishOY1320Data(dev device, entry loradata, parsedvalues []OY1320Data) {
loradatabytes, err := json.Marshal(entry)
if err != nil {
fmt.Println("Failed to encode message", err)
return
}
if !dev.RawData {
var decodeddata decoded1320data
if err := json.Unmarshal([]byte(loradatabytes), &decodeddata); err != nil {
fmt.Println("Failed to encode message", err) //This error is ok as the format of data is different
}
decodeddata.Data = append(decodeddata.Data, parsedvalues...)
loradecodeddatabytes, err := json.Marshal(decodeddata)
if err != nil {
fmt.Println("Failed to encode message", err)
return
}
fmt.Println("Data sent: ", string(loradecodeddatabytes))
transferDatatoEndPoint(loradecodeddatabytes, dev)
} else {
transferDatatoEndPoint(loradatabytes, dev)
}
}