Payload decoding for Soil sensor set

There are 2 references for the soil sensors set :

• Catnip Soil : #19
• WaterScout Soil : #50

The sensor set of catnip soil sensor is : 19

This configuration need to be set into the device through a DOWNLINK MESSAGE 

The uplink structure is on 5 byte in hexadecimal.

To decode it please use this rules :

Example for payload: 1019140264

	Byte 0	Byte 1	Byte 2	Byte 3	Byte 4
Value	Message Code	Temperature	lsb* Moisture	msb** Moisture	Battery
Hexa	0x{10}	0x{19}	0x{14}	0x{02}	0x{64}
Decimal	10	25	532 decoded using little endian convention		100
Unit	-	°C	Raw capacity		%

* lsb : less significant byte

** msb most significant byte

The sensor set of water scout soil sensor is : 50

This configuration need to be set into the device through a DOWNLINK MESSAGE 

The uplink structure is on 5 byte in hexadecimal.

To decode it please use this rules :

Example for payload: 1019140264

	Byte 0	Byte 1	Byte 2	Byte 3	Byte 4
Value	Message Code	Temperature	lsb* Moisture	msb** Moisture	Battery
Hexa	0x{10}	0x{19}	0x{14}	0x{02}	0x{64}
Decimal	10	25	532 decoded using little endian convention		100
Unit	-	°C	Raw capacity		%

* lsb : less significant byte

** msb most significant byte

In case of communication error between the sensor and the Device, the device may report an error code that needs to be filtered.

Sensor	Error Code (decimal)
Catnip Soil	32766
WaterScout Soil	No code error

In case of successive error code the device can be reboot remotely: How to reset a device trought a downlink message

How to compute water volumetric content from raw data?

The method to compute the water volumetric content from raw data sensor can be find in the section "Soil Specific Calibration" of the attached document "spec_capteur_waterscout_SM100.pdf". This method can be used for either waterscout ou catnip sensors.

Calculation process of water volumetric content

Setting threshold regarding soil type