AWS-X data packet description

AWS-X data packet description

AWS-X weather stations send data to the internet as UPD packets.
Received data can be stored in a database for later retrieval. We provide this description of the packet, to allow programmers to develop their own sites, if they want. We also provide the opportunity of using our servers, for free with a limited, not guaranteed service or for an annual fee at different prices according to the level of service requested.

Packet Format
Packets are in NMEA format. Packet identifier is $DPTAW. The packet starts with this identifier. All subsequent parameters are sent in ascii, comma separated. Packet ends with a star * and a 1 byte checksum, computer as exclusive OR of all characters, including commas, but not including $ and *.
An example follows:
$DPTAW,2002/12/09,19:10,AWSTEST,558,60,0,1016,0,7,11,11,208,14,300,25.0,12.0,32.0,26.0,0.2,0.6,200,-3.2,77.4,73.0,81.0,E,12.6,*F8
A more detailed explanation follows:

Parameter name	Parameter description	Parameter type	Example
header	Packet identifier	6 characters	$DPTAW
yyyy/mm/dd	date in yyyy/mm/dd format	4 digits, 2 digits, 2 digits	2019/11/08
hh:mm	time in hours:minutes (24 Hours)	2 digits (00-24),2 digits (00-59)	16:30
id	Device identifier	max 10 chars	AWX_01
smsc	SMS sent.	0 to 9999	558
si	Sampling Interval: from 2 to 60 minutes	2 to 60.	60
was	Wind Average Speed in Sampling Interval in km/h	integer	0
Air pressure	Air pressure in Millibar.	integer	1016
wmins	Minimum wind speed in sampling interval in km/h	integer	0
wgust	Wind gust over a 3 second interval in sampling interval in km/h	integer	11
dwgust	daily wind Gust (0-24). In km/h.	integer	11
leaf	Leaf Wetness	integer 0 (wet) - 15 (dry)	15
wdir	Wind direction in degrees	integer 0 - 359 (0=N,90=E,180=S,270=W)	204
wdsd	Standard deviation of wind direction. 0 means stable.	integer	10
sun	Solar Radiation in W/m2	integer from 0 (dark) to 1531	300
temp	Average air temperature in sampling interval	Number with 1 decimal, from -25.0 to 99.9	25.0
dmintemp	Minimum daily air temperature	Number with 1 decimal, from -25.0 to 99.9	12.0
dmaxtemp	Maximum daily air temperature	Number with 1 decimal, from -25.0 to 99.9	32.0
SoilT	Soil temperature	Number with 1 decimal, da -25.0 a 100.0	26.0
rf	Rainfall in sampling interval mm.	Multiples of 0.2 mm	0.2
drf	Daily Rainfall in mm	Multiples of 0.2 mm	0.6
Soilw	Soil moisture, as water potential in centibar	Integers from 0 (wet) to 200 (dry)	200
dp	Dew Point in degrees centigrade.	Numbers with 1 decimal	-3.2
rh	average value of RH in sampling interval	Numbers with 1 decimal, from 0.0 to 100.0	77.4
dminrh	Minimum daily RH	Numbers with 1 decimal, from 0.0 to 100.0	73.0
dmaxrh	Maximum daily RH	Numbers with 1 decimal, from 0.0 to 100.0	81.0
pwtype	Power type: E= Solar Panel. B=Battery.	1 character: E or B.	B
battvolt	Battery Voltage	Numbers with 1 decimal	12.6
checksum	Checksum. All characters between $ e * (not including them). XOR of values.	* asterisk with an hexadecimal byte represented in ascii as 2 characters	*F8