Blogger ‘ulfster’ decided he wanted to be kind to the wildlife in his garden. He has some squirrels that come into the garden but they were a little skittish around him when he tried to feed them. So, he struck upon the idea of building an automated feeder. He made up a box and placed a Pi inside which controls a servo motor which deals with the release of a nut. All he had to do was wait until a squirrel came in to see if it worked. You can see from the video below that he was successful! Read more here.