Author: Alan Sellers Contact: baalansellers@hotmail.com More Info: http://alansellers.net/projects/the-button-websocket-raspberry-pi/ This is the second iteration of my button project. The goal of the project is to create an interactive system that displays a countdown for our current sales goal of 20 contracts. The system is made up of a Raspberry Pi and a Button. The RPi hosts a webserver capable of serving websockets and hosts a web page that uses a websocket for communication between a client (someone viewing the countdown) and the RPi which is also monitoring for Button presses. The count is decremented on each button press and a message is sent to all clients with the new "count" to be displayed.