Version Codes:

STD	EXT
---0		Wind Direction 4-bit encoder
---1		Wind Direction Pot
---2		Wind Sensor by Texas Electronics
---3		Wind Sensor by HM Young Company
---4		Leaf Wetness
---8		Data input/output, no display
--0-		Aux Temp
--1-		No Aux Sensor
--2-		Solar Sensor
--3-		(reserved)
--4-		Lightning Cntr
--8-		(special)
--81		Evaporation Pan Sensor
-0--		CPU 3-
-1--		CPU 4+
-2--		Euro date
-4--		(reserved)
-8--		(reserved)
0---		(reserved)
1---		(reserved)
2---		(reserved)
34--		Lo Res
38--		Md Res
4---		Hi Res
8---		(reserved) 

	---1	local  ADC 0 		T/S
	---2	local  ADC 1 		rh
	---4	local  ADC 2 		lw
	---8	local  ADC 3 		Tpcb
	--1-	meters/second units for wind speed
	--2-	CPU5 Wind Dir code
	--4-	auxcpu Leaf Wetness
	--8-	auxcpu Lightning Cntr
	-1--	auxcpu ADC 0 		T/S
	-2--	auxcpu ADC 1 		RH
	-4--	auxcpu ADC 2 		lw
	-8--	auxcpu ADC 3 		T/S (Matrix)
	1---	auxcpu DIO 2-In, 2-Out
	2---	No Logging Flag
	4---	auxcpu SIO: COM2, COM3
	8---	auxcpu temp matrix