DL-TRS12
Product Datasheet
Device Profile for Tesenso IoT Cloud
Decoder/Payload Converter for Tesenso IoT Cloud
Device Labels
VWC (volumetric water content) raw value
telemetry
float
Soil temperature
temperature
telemetry
float
Electrical conductivity
telemetry
float
Battery voltage
batteryVoltage
telemetry
float
Uplink documentation
Sensor Data message Format
Message:
Message length is variable, depending on which sensor data are included. Minimum length is 5 bytes (header only). Maximum length is 5 bytes + all sensor data (see below).
Integers are big endian: MSB first byte, LSB last byte.
Header
Version: 1 byte; version = 2 for current protocol version.
Device ID: 2 bytes; 0...65535.
Flags: 16 bits: flag 15 | flag 14 | … | flag 0 (LSB).
The flags indicate, if data of the respective sensors are included in the message or not: Flag n == 1: sensor n data included; flag n == 0: not included.
Details
Header
Version
uint8
Header
Device ID
uint16
Header
Flags
uint16
Sensor 0
VWC raw value (VWCRAW)
uint16
x / 10
Sensor 0
Soil temperature
uint16
(x − 32768) / 10
°C
Sensor 0
Electrical conductivity
uint16
x
μS/cm
Sensor 1
Battery votage
uint16
x / 1000
V
Volumetric water content (VWC) calculation for mineral soil (see sensor manual by Meter Group): VWC = VWCRAW · 0.0003879 − 0.6956 [m3 /m3 ].
Apparent dielectric permittivity (dp) can be used to determine VWC using external published equations such as the Topp equation (Topp et al. 1980): dp = (0.000000002887 · (VWCRAW)^3 − 0.0000208 · (VWCRAW)^2 0.05276 · (VWCRAW) − 43.39)^2
Electrical conductivity units conversion: 1 μS/cm = 0.001 dS/m.
sample Message (hex) (all sensor data included):
0210d3000346be813d00000c80
02
Version
2
10d3
Device ID
4307
0003
Flags
0b0000000000000011
46be
VWC raw
1811.0
813d
Soil temperature
31.7
°C
0000
Electrical conductivity
0
μS/cm
0c80
Volumetric water content
3.200
V
Volumetric water content
0.0069
m^3 /m^3
Dielectric water content
1.1831
Downlink documentation
Last updated