Hi,
Mike Dunn (owfs-devel):
> The design in the article uses a single DS2423 counter and a capacitor
> array, which (at the very least), sounds significantly cheaper to design
> and build. The water level is read in terms of the counter frequency as
> the water rises and shorts a different number of capacitors.
>
Mmh. Why not use something like HobbyBoards' Moisture Meter?
Or, even more simple, since it's salt water: run two parallel blank
(gold-plated) wires down the aquarium wall and measure the resistance.
Conductivity (i.e. the inverse of the resistance) should be reasonably
proportional to the submerged part's length.
--
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