Does your WiFi router frequently drop out and need rebooting? This can be a very frustrating problem! However, like many problems, it can easily be solved with Arduino. This awesome project from Sameer sets up an Arduino which monitors your wifi connection, whenever the wifi is down a warning buzzer sounds and then a relay turns the router off and boots it back up again a few seconds later, just as if you had rebooted it yourself! This is an extremely useful project, and best of all it shouldn't be too hard either. To get started checkout the following link.
If you're looking for a buzzer module to use in this project checkout our sound and buzzer module:
It can be used as a noise-maker driven by your micro controller 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, visit the product page.