Dr Robot
I built this with a Dobot magician robot and the an Operation game. The website was a simple HTML & CSS App connecting to a Spark API.
The hardware interacting the app to the robot was a Spark Photon, connected to the IO ports of the Dobot robot.
The LED display was created by connecting the Spark Photon to an Arduino (I needed the SPI – from memory) and then running to the LED display.