Do you ever get up from your desk to go to the bathroom only to find that it is occupied? With this cool project from hassaku you can use a number of sensors, a buzzer, and a Spark Core to create a toilet vacancy sensor.
The Spark Core interfaces with a Google Chrome extension which allows you to see in a quick glance if your bathroom is occupied. To get started on this unique project checkout the following link.
If you're looking for a buzzer module to use in this project check out our sound and buzzer module:
It can be used as a noise-maker driven by your microcontroller for audible feedback of events, and it can also be used as a knock-detector input to sense events and react to them. Includes a built-in 1M resistor to allow the piezo element to detect shocks. For more information and to order, please visit the product page.