Pi Project for Work

From: ANT_THOMAS30 Jul 2014 21:53
To: Ken (SHIELDSIT) 2 of 14
Water in what sense? Flood? Humidity?

Plenty of humidity sensors.

I have a rain sensor which has an ADC converter built in so when it's wet/dry it just outputs high/low which is easily read on the Pi GPIO.

Search eBay for Arduino rain or moisture sensors and see if the idea of them makes sense for you.
From: Ken (SHIELDSIT)30 Jul 2014 21:54
To: ANT_THOMAS 3 of 14
Water as in flood.  We've had our A/C drain plug and spit water on the floor more than once.  I did do a quick search after I posted and it seems most of them are used for moisture in soil.
From: Ken (SHIELDSIT)30 Jul 2014 21:57
To: ANT_THOMAS 4 of 14
Well who would believe that someone already did most of it?  I figured that was the case but was too lazy to look until now!
From: ANT_THOMAS30 Jul 2014 22:02
To: Ken (SHIELDSIT) 5 of 14
There you go then!

But I believe the soil moisture sensors can be used to detect water as a wet/dry variable rather than percentage of moisture.
From: Ken (SHIELDSIT)30 Jul 2014 22:04
To: ANT_THOMAS 6 of 14
That may be what I go with, I'll try making this one first.  The ones you buy just look better.
From: ANT_THOMAS30 Jul 2014 22:04
To: Ken (SHIELDSIT) 7 of 14
That's what I've got

http://pages.ebay.com/link/?nav=item.view&id=281371131769&alt=web

You could just remove the sensor plate, since its basically just a load of metal tracks that get bridged by water to make a circuit, and run two wires to the floor where the water will be.
From: Ken (SHIELDSIT)30 Jul 2014 22:06
To: ANT_THOMAS 8 of 14
Hmm, so if any of that gets wet it registers right?  That might work just fine.
From: Ken (SHIELDSIT)30 Jul 2014 22:21
To: ANT_THOMAS 9 of 14
Look what this guy made!  Our farm isn't that big but this would still be pretty useful!
From: ANT_THOMAS30 Jul 2014 22:32
To: Ken (SHIELDSIT) 10 of 14
Yeah if you wet your finger and touch the plate it registers. Or put a drop of water on it.
From: ANT_THOMAS 2 Aug 2014 09:46
To: Ken (SHIELDSIT) 11 of 14
Well you encouraged me to actually setup the rain sensor.

Attachments:
From: Ken (SHIELDSIT) 2 Aug 2014 17:39
To: ANT_THOMAS 12 of 14
Wow, lots of data!  Sweet!
From: ANT_THOMAS11 Aug 2014 22:26
To: ALL13 of 14
Turns out my cheap rain sensor corroded in the rain so it has stuck on! Oh the irainy. (sorry)
From: koswix12 Aug 2014 07:24
To: ANT_THOMAS 14 of 14
Irainy oxidey