Russell McMahon wrote:

>>... I made an electric fence to keep snails out of the
>>veges. 
>>    
>>
>
>You could sell the concept to Gallagher.
>
>
>        RM
>
>  
>
Is Gallagher still around? Hasn't run out of melons yet?

- - -

Actually, Jinx and his gold wires look like a fix. I am driving it with
an "AC driver" through all six sections of a CD40106. A PIC16F676
will sense the inputs, smooth everything, then drive the a solenoid value.
I am also making the PIC time the fountain... I am having it come on
for 14 hrs after detecting daylight, defined as at least two hours without
light, followed by at least 15 minutes  OF light...but when you mash the
red switch you can break the cycle momentarily, making the fountain go
on at will. The "AC" swings from +5V to -5V to prevent etching the gold
wires.

After buying the parts on the web, I discovered that ALL ELECTRONICS
(a surplus house) sells battery-operated water-level detectors.... Oh will,
mine will be more complex and hopefully work better,,,

BTW, you have tossed out some good informative links lately. Do you
EVER sleep?

--Bob

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