Sunday, January 14, 2007

Water level

Here you see the resistors, in a serial configuration.


evylrat said...

This is exactly what I'm looking for for my own arduino project. I wish to monitor the draining and refilling of a large tub. All I need now is a temperature probe too.

Floris said...

just a question:
is it ok for resistors to be under water?

Unknown said...

Did this really work? With the values shown?

The 'resistance' of water is so much more than the 1k resistors used, that the water 'shorting' them out is unlikely to make a significant difference, right?

I've used this technique too, but I had to use 100K resistors instead; and then too, the linearity was pretty shabby.