Mauricio from Mexico has done this great arduino project: The Flush-O-Matic.
It´s a device to auto flush the WC and see the progress of the process via an LCD screen. It works via a servo motor that makes the mechanical action, and a puschbutton to start the process.
Grat idea and great tutorial (in spanish).
It´s Summer time!!!! (it means we have some crazy hot days in Madrid... 40º C!!!!) This summer has been quite complicated in Spain, and in my flat i don´t have air conditioning, so i needed to have a solution fast, since the fan was not doing enough... i came up… Finally i did it! i was with the idea of this project for so long... and finally got time to do it. I know is a very common project on the web, many sites with the videos and tutorials, but is so cool that was worth the time! (and once… Surfing on Ebay and youtube, looking for some servos, i found this very well done video on how the servos work, from the inside to the outside. A really nice 3d modeling video explaining how the servos work. http://www.youtube.com/watch?v=-XSXfqd1N58 (via YouTube)