If you have a blog or website and want to make a physical device to display the number of visitors, this project might be interesting to you. It describes about a similar device that can be directly connected to the internet via router and counts the visitors of your website. The number of visitors is displayed on seven segment LEDs.
The project uses the ATMEGA168 microcontroller that has enough pins and enough memory required for the whole applications. The display part consists of 8 digits seven segment LEDs made of two KW4-361ASB modules. Each module has 4 digits of seven segment LEDs.
For more detail: A physical display device for website visitors based on Atmega168