Empty water bottle detector

[Mr Smiley]

Bunny’s are highly intelligent creatures 

Just teach them to press a button next to the water bottle, when it's empty, that latches on a light   

Bunny bonding

 

They already tell me when it's empty. They're expressive enough to communicate with humans, if you've been with them long enough to recognize it.

Then why bother with all this 

Just listen to your bunnys 

It sounds like a long winded waste of time when your bunnys are already telling you what you want to know. Your just showing mistrust towards your bunnys, and they will not be impressed with that (if you've been around them long enough to notice), resulting in failed bunny bonding 

 

[BillyD]

Bunny’s are highly intelligent creatures 

Just teach them to press a button next to the water bottle, when it's empty, that latches on a light   

Bunny bonding

 

They already tell me when it's empty. They're expressive enough to communicate with humans, if you've been with them long enough to recognize it.

Then why bother with all this 

Just listen to your bunnys 

It sounds like a long winded waste of time when your bunnys are already telling you what you want to know. Your just showing mistrust towards your bunnys, and they will not be impressed with that (if you've been around them long enough to notice), resulting in failed bunny bonding 

 

Well why not. It's entertaining, educational and goes some way towards solving a problem.

The only argument I see against doing this would be if it harmed the animals or environment, or if anyone could think of an even better use of the time and materials he has.

[KerryW]

I didn't have any magnets or reed switches handy, and I can't buy anything new. So, optical detection built from my limited inventory it is.

Dollar Tree sells a "Door alarm" that has a magnet, reed switch, buzzer and other parts for $1.  Not quite 0$, but close.

Kerry

[Mr Smiley]

Poooooor Bunnys 

It will be the first and last time they empty that water bottle,  110db sounder on the last sip 

Just visualize the bunny in the headlights expression with all their hair standing on end and a puddle under their little feet 

Look at the carbon footprint you'll be saving if you just let them tell you themselves, and it'd make them happy that their helping 

 

[rexxar]

Poooooor Bunnys 

It will be the first and last time they empty that water bottle,  110db sounder on the last sip 

Just visualize the bunny in the headlights expression with all their hair standing on end and a puddle under their little feet 

Look at the carbon footprint you'll be saving if you just let them tell you themselves, and it'd make them happy that their helping 

 

The rabbits aren't smart enough to understand that they're 'helping' or that I don't trust them to tell me when they're out of water. Besides, by the time they do notice that the water is empty, it's been like that for a few hours, and I don't want it to get to that point.

If the buzzer scares them, they'll quickly get used to it once they realize it's not a threat. Our heater makes a very loud kaTHUNK when it turns on, and it scared them half to death when we moved in, but now they don't notice it.

Regardless, the point of this whole thing was for me to learn more about electronics. If it turns out I make something that's marginally useful, then great. The point is not how I treat my rabbits-- or rather, how you think I treat my rabbits-- but that I learned something, and got a useful device out of it.

It's very rude and presumptuous of you to condemn me on the treatment of my rabbits when you are 3,500 miles away from me. I treat my rabbits better than many do. I've gone through an inordinate amount of trouble to make sure they can't hurt themselves or the apartment in the entire room I've given them.

I came here for electronics advice, not harassment for your assumptions on how I treat my rabbits.