Part Name: Single Pole Single Throw Tactile Pushbutton
Part Description: A bushputton switch is a passive electronic device that acts as a switch to close or open an electrical connection through mechanical action. The pushbutton in your kit has two leads that connect to your device. By pressing the button, the switch is closed, and the two leads are connected in order to conduct a signal. Pushbuttons can be used to program user input to a given device by measuring signal changes in response to a switch state change. For more information on button usage, take a look at the tutorial GPIO Basics.