Maybe it is because I don’t have a yard but I didn’t know that this was a problem (is this a problem?). Like a giant spritz bottle to keep cats off furniture, this raspberry pi solution keeps the cats out of your yard. Shared by CatawayCV on Instructables:
Problem – Cats using your garden as a toilet
Solution – Spend a too much time over engineering a cat sprinkler with auto youtube upload feature
This is not a step by step, but an overview of construction and some code
#BeforeYouCallPETA – The cats are fine, its a low pressure sprinkler just like rain, that they can outrun before it even pivots around to them. The project is not to soak a cat, but to shew them away before they litter my garden with the cat version of Barkers Eggs.
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