Switches in Circuits

This is a miniature portable key board that can be plugged in and used for sending text messages to friends on the Xbox 360. It draws power from the xbox controller itself and works through the physics concept of circuits. When a button is pushed down, it completes a circuit that then sends an electrical impulse contiguous to a given letter or number on the pad. Each word on screen is created by a complicated set of circuits within the messenger kit. Furthermore, circuits are altered by the addition of a SHIFT button, which can produce capital letters, and a GREEN and ORANGE button. When these buttons are held down, they are able to change what each letter or number does. For example, by holding down the green button and pressing W, the @ sign will appear. This is because the green button + W is a different circuit for the electrical impulse than the letter W alone.