[oopic] Cadmium CDS (oCdS)

Hello,

I'm trying to use a CdS cell with my oopic. I'm certain that I've
done the wiring correctly, it's quite simple.

http://oopic.com/ocds.htm

has the following sample program:

"I As oCdS(1,0,cvOn)
P As oDIO8(3,cvOutput)

1:
P.State = I.Level
Goto 1"

Using this as a reference, I tried outputing the i.level value to an
LCD:

"LCD As oLCD(3,1,27,26,cvOn)
b As oByte
I As oCdS(1,0,cvOn)
I.IOLine = 14
LCD.Init
LCD.Clear
LCD.Locate(0,0) ' Locate cursor at 2nd row, 3rd column.

Do
LCD.Locate(0,0)
b = 0
b = I.Level
LCD.VString = Str$(b)
Delay = 500
Loop
"

I get "00154" or "00153" on the LCD. The value varies +-1.

Shining or turning off the light makes no difference. I tried using
another cell, same results.

Some clue as to what could be wrong: removing the cell or
disconnecting it from the i/o line makes no difference.
Im certain the wiring is right.. Could it be the program?

Thanks in advance

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