125 lines
4.4 KiB
Plaintext
125 lines
4.4 KiB
Plaintext
# LoRaWAN Decoder file for Dragino LHT52
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#
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# References
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# User Manual: https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT52%20-%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/
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# TTN Device Repository: https://github.com/TheThingsNetwork/lorawan-devices/blob/master/vendor/dragino/lht52.js
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import string
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if !global.lht52Nodes # data survive to decoder reload
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global.lht52Nodes = {}
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end
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class LwDecoLHT52
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static def decodeUplink(Name, Node, RSSI, FPort, Bytes)
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var data = {"Device":"Dragino LHT52"}
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var valid_values = false
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var last_seen = 1451602800
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var battery_last_seen = 1451602800
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var battery = 1000
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var rssi = RSSI
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var temp_int = 1000
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var humidity
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var temp_ext = 1000
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if global.lht52Nodes.find(Node)
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last_seen = global.lht52Nodes.item(Node)[2]
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battery_last_seen = global.lht52Nodes.item(Node)[3]
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battery = global.lht52Nodes.item(Node)[4]
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rssi = global.lht52Nodes.item(Node)[5]
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temp_int = global.lht52Nodes.item(Node)[6]
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humidity = global.lht52Nodes.item(Node)[7]
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temp_ext = global.lht52Nodes.item(Node)[8]
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end
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## SENSOR DATA ##
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if 2 == FPort && Bytes.size() == 11
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last_seen = tasmota.rtc('local')
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var TempC
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TempC = Bytes[0] << 8 | Bytes[1]
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if Bytes[0] > 0x7F
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TempC -= 0x10000
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end
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TempC /= 100.0
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data.insert("TempC_Internal", TempC)
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temp_int = TempC
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TempC = Bytes[4] << 8 | Bytes[5]
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if 0x7FFF == TempC
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data.insert("Ext_SensorConnected", false)
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else
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data.insert("Ext_SensorConnected", true)
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if Bytes[4] > 0x7F
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TempC -= 0x10000
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end
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TempC /= 100.0
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data.insert("TempC_External", TempC)
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temp_ext = TempC
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end
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data.insert("Hum_Internal", ((Bytes[2] << 8) | Bytes[3]) / 10.0)
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humidity = ((Bytes[2] << 8) | Bytes[3]) / 10.0
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data.insert("Ext_SensorType", Bytes[6])
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var epoch = (Bytes[7] << 24) | (Bytes[8] << 16) | (Bytes[9] << 8) | Bytes[10]
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data.insert("Systimestamp",tasmota.time_str(epoch))
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valid_values = true
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## STATUS DATA ##
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elif 5 == FPort && Bytes.size() == 7
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data.insert("Sensor_Model",Bytes[0])
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data.insert("Firmware_Version", f'v{Bytes[1]:%u}.{Bytes[2]>>4:%u}.{Bytes[2]&0xF:%u}')
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data.insert("Freq_Band",LwRegions[Bytes[3]-1])
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data.insert("Sub_Band",Bytes[4])
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data.insert("BattV",((Bytes[5] << 8) | Bytes[6]) / 1000.0)
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battery_last_seen = tasmota.rtc('local')
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battery = ((Bytes[5] << 8) | Bytes[6]) / 1000.0
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valid_values = true
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else
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# Ignore other Fports
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end #Fport
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if valid_values
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if global.lht52Nodes.find(Node)
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global.lht52Nodes.remove(Node)
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end
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# sensor[0] [1] [2] [3] [4] [5] [6] [7] [8]
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global.lht52Nodes.insert(Node, [Name, Node, last_seen, battery_last_seen, battery, RSSI, temp_int, humidity, temp_ext])
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end
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return data
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end #decodeUplink()
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static def add_web_sensor()
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var msg = ""
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for sensor: global.lht52Nodes
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var name = sensor[0]
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if string.find(name, "LHT52") > -1 # If LoRaWanName contains LHT52 use LHT52-<node>
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name = string.format("LHT52-%i", sensor[1])
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end
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var name_tooltip = "Dragino LHT52"
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var last_seen = sensor[2]
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var battery_last_seen = sensor[3]
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var battery = sensor[4]
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var rssi = sensor[5]
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msg += lwdecode.header(name, name_tooltip, battery, battery_last_seen, rssi, last_seen)
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# Sensors
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var temp_int = sensor[6]
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var humidity = sensor[7]
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var temp_ext = sensor[8]
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msg += "<tr class='htr'><td colspan='4'>┆" # |
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if temp_int < 1000
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msg += string.format(" ☀️ %.1f°C", temp_int) # Sunshine - Temperature internal
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msg += string.format(" 💧 %.1f%%", humidity) # Raindrop - Humidity
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end
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if temp_ext < 1000
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msg += string.format(" ☀️ ext %.1f°C", temp_ext) # Sunshine - Temperature external
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end
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msg += "{e}" # = </td></tr>
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end
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return msg
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end #add_web_sensor()
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end #class
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LwDeco = LwDecoLHT52
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