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Create DDS75L.be (#23545)

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LoRaWAN Decoder File for Dragino DDS75-LB/LS

An Ultrasonic distance sensor

https://www.dragino.com/products/distance-level-sensor/item/271-dds75-lb-ls.html
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# LoRaWAN Decoder file for Dragino DDS75-LB/LS
#
# References
# User Manual: https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS75-LB_LoRaWAN_Distance_Detection_Sensor_User_Manual/
# TTN Device Repository: https://github.com/TheThingsNetwork/lorawan-devices/blob/master/vendor/dragino/dds75-lb.js
import string
global.dds75lbNodes = {}
class LwDecoDDS75LB
static def decodeUplink(Node, RSSI, FPort, Bytes)
var data = {"Device":"Dragino DDS75-LB/LS"}
data.insert("Node", Node)
var valid_values = false
var last_seen = 1451602800
var battery_last_seen = 1451602800
var battery = 1000
var rssi = RSSI
var distance = 0
if global.dds75lbNodes.find(Node)
last_seen = global.dds75lbNodes.item(Node)[1]
battery_last_seen = global.dds75lbNodes.item(Node)[2]
battery = global.dds75lbNodes.item(Node)[3]
rssi = global.dds75lbNodes.item(Node)[4]
distance = global.dds75lbNodes.item(Node)[5]
end
## SENSOR DATA ##
if 2 == FPort && 8 == Bytes.size() && 0 == ( Bytes[0] & 0x10 )
last_seen = tasmota.rtc('local')
battery_last_seen = tasmota.rtc('local')
battery = ((Bytes[0] << 8) | Bytes[1]) / 1000.0
data.insert("BattV",battery)
distance=Bytes[2]<<8 | Bytes[3]
data.insert("Distance",distance)
valid_values = true
## STATUS DATA ##
elif 5 == FPort && 7 == Bytes.size()
data.insert("Sensor_Model",Bytes[0])
data.insert("Firmware_Version", f'v{Bytes[1]:%u}.{Bytes[2]>>4:%u}.{Bytes[2]&0xF:%u}')
data.insert("Freq_Band",LwRegions[Bytes[3]-1])
data.insert("Sub_Band",Bytes[4])
battery_last_seen = tasmota.rtc('local')
battery = ((Bytes[5] << 8) | Bytes[6]) / 1000.0
valid_values = true
else
# Ignore other Fports
end #Fport
if valid_values
if global.dds75lbNodes.find(Node)
global.dds75lbNodes.remove(Node)
end
# sensor[0] [1] [2] [3] [4] [5]
global.dds75lbNodes.insert(Node, [Node, last_seen, battery_last_seen, battery, RSSI, distance])
end
return data
end #decodeUplink()
static def add_web_sensor()
var msg = ""
for sensor: global.dds75lbNodes
var name = string.format("DDS75-L-%i", sensor[0])
var name_tooltip = "Dragino DDS75-L"
var last_seen = sensor[1]
var battery_last_seen = sensor[2]
var battery = sensor[3]
var rssi = sensor[4]
msg += lwdecode.header(name, name_tooltip, battery, battery_last_seen, rssi, last_seen)
# Sensors
var distance = sensor[5]
msg += "<tr class='htr'><td colspan='4'>&#9478;" # |
msg += string.format(" &#11123;&#xFE0F; %.0fmm", distance) # ⭳
msg += "{e}" # = </td></tr>
end
return msg
end #add_web_sensor()
end #class
LwDeco = LwDecoDDS75LB