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Copy pathOY1400.go
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OY1400.go
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package main
import (
"encoding/base64"
"encoding/json"
"fmt"
"math"
"time"
)
/*
"payload": {"applicationID": "20","applicationName": "TalkpoolOY","deviceName": "OY1400","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}]}
*/
type oy1400data struct {
Time time.Time
AnalogCh1 float64
AnalogCh2 float64
DigitalCh1 float64
DigitalCh2 float64
}
type decoded1400data 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 []oy1400data `json:"data,omitempty"`
}
func round(num float64) int {
return int(num + math.Copysign(0.5, num))
}
func toFixed(num float64, precision int) float64 {
output := math.Pow(10, float64(precision))
return float64(round(num*output)) / output
}
func parseOY1400Data(receivedtime time.Time, port uint8, receiveddata string) []oy1400data {
//Input Validation
//Length should be a multiple of 6
//var expval, VS,F1,F2,F3,F4,F5 float64
var val uint16
databytes, _ := base64.StdEncoding.DecodeString(receiveddata)
var parsedvalues []oy1400data
switch port {
case 1: //status
//01 21 47 90 17 38
if len(databytes)%6 == 0 {
capacity := len(databytes) / 6
parsedvalues = make([]oy1400data, capacity)
for index := 0; index < capacity; index++ {
fmt.Println("databytes", databytes)
val = uint16(databytes[(index*6)])<<8 + uint16(databytes[(index*6)+1])
fmt.Println("val", val)
if val == 289 {
parsedvalues[index].AnalogCh1 = toFixed(float64(uint16(databytes[(index*1)+2])<<8+uint16(databytes[(index*1)+3]))*0.5125, 1)
parsedvalues[index].AnalogCh2 = toFixed(float64(uint16(databytes[(index*1)+4])<<8+uint16(databytes[(index*1)+5]))*0.5125, 1)
parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
}
}
}
//01 21 1c 18 00 00 1b e0 00 00 1b e0 00 08
if len(databytes)%14 == 0 {
capacity := 3
parsedvalues = make([]oy1400data, capacity)
for index := 0; index < capacity; index++ {
fmt.Println("databytes", databytes)
parsedvalues[index].AnalogCh1 = toFixed(float64(uint16(databytes[(index*4)+2])<<8+uint16(databytes[(index*4)+3]))*0.5125, 1)
parsedvalues[index].AnalogCh2 = toFixed(float64(uint16(databytes[(index*4)+4])<<8+uint16(databytes[(index*4)+5]))*0.5125, 1)
parsedvalues[index].Time = receivedtime.Add(time.Duration((-5)*index) * time.Minute)
}
}
// 01 22 01 17 38 00 21 88
if len(databytes)%8 == 0 {
capacity := len(databytes) / 4
parsedvalues = make([]oy1400data, capacity)
for index := 0; index < capacity; index++ {
fmt.Println("databytes", databytes)
val = uint16(databytes[(index*8)])<<8 + uint16(databytes[(index*8)+1])
//val=(int32(databytes[index*8])<<4|(int32(databytes[(index*8)+1])&0xF0)>>4)
fmt.Println("val", val)
if val == 290 {
parsedvalues[index].DigitalCh1 = toFixed(float64(uint16(databytes[(index*4)+2])<<8+uint16(databytes[(index*4)+3]))*0.5125, 1)
fmt.Println("DigitalCh1", parsedvalues[index].DigitalCh1)
parsedvalues[index].AnalogCh2 = toFixed(float64(uint16(databytes[(index*4)+4])<<8+uint16(databytes[(index*4)+6]))*0.5125, 1)
fmt.Println("AnalogCh2", parsedvalues[index].AnalogCh2)
parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
}
}
}
//01 23 47 90 00
if len(databytes)%5 == 0 {
capacity := len(databytes) / 5
parsedvalues = make([]oy1400data, capacity)
for index := 0; index < capacity; index++ {
fmt.Println("databytes", databytes)
val = uint16(databytes[(index*5)])<<8 + uint16(databytes[(index*5)+1])
//val=(int32(databytes[index*5])<<4|(int32(databytes[(index*5)+1])&0xF0)>>4)
fmt.Println("val", val)
if val == 291 {
fmt.Println(" came here")
parsedvalues[index].AnalogCh1 = toFixed(float64(uint16(databytes[(index*5)+2])<<8+uint16(databytes[(index*5)+3]))*0.5125, 1)
fmt.Println("AnalogCh1", parsedvalues[index].AnalogCh1)
parsedvalues[index].DigitalCh2 = toFixed(float64(uint16(databytes[(index*5)+4])<<8+uint16(databytes[(index*5)+6]))*0.5125, 1)
fmt.Println("DigitalCh2", parsedvalues[index].DigitalCh2)
parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
}
}
}
// 01 24 01 00
if len(databytes)%4 == 0 {
capacity := len(databytes) / 4
parsedvalues = make([]oy1400data, capacity)
for index := 0; index < capacity; index++ {
fmt.Println("databytes", databytes)
val = uint16(databytes[(index*4)])<<8 + uint16(databytes[(index*4)+1])
//val=(int32(databytes[index*4])<<4|(int32(databytes[(index*4)+1])&0xF0)>>4)
fmt.Println("val", val)
if val == 292 {
parsedvalues[index].DigitalCh1 = toFixed(float64(uint16(databytes[(index*4)+2])), 0)
fmt.Println("DigitalCh1", parsedvalues[index].DigitalCh1)
parsedvalues[index].DigitalCh2 = toFixed(float64(uint16(databytes[(index*4)+3])), 0)
// fmt.Println("DigitalCh2", parsedvalues[index].DigitalCh2)
parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
}
}
}
//01 24 01 01 00 01 00 00 00 01
if len(databytes)%10 == 0 {
capacity := len(databytes) - 1
parsedvalues = make([]oy1400data, capacity)
for index := 0; index < capacity; index++ {
fmt.Println("databytes", databytes)
val = uint16(databytes[(index*2)])<<8 + uint16(databytes[(index*2)+1])
//val=(int32(databytes[index*2])<<4|(int32(databytes[(index*2)+1])&0xF0)>>4)
fmt.Println("val", val)
if val == 292 {
parsedvalues[index].DigitalCh1 = toFixed(float64(uint16(databytes[(index*2)+2])<<8+uint16(databytes[(index*2)+3]))*0.5125, 1)
fmt.Println("DigitalCh1", parsedvalues[index].DigitalCh1)
parsedvalues[index].DigitalCh2 = toFixed(float64(uint16(databytes[(index*2)+4])<<8+uint16(databytes[(index*2)+6]))*0.5125, 1)
fmt.Println("DigitalCh2", parsedvalues[index].DigitalCh2)
parsedvalues[index].Time = receivedtime.Add(time.Duration((-15)*index) * time.Minute)
}
}
}
default:
return nil
}
return parsedvalues
}
func publishOY1400Data(dev device, entry loradata, parsedvalues []oy1400data) {
loradatabytes, err := json.Marshal(entry)
if err != nil {
fmt.Println("Failed to encode message", err)
return
}
if !dev.RawData {
var decodeddata decoded1400data
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)
}
}