ButtonΒΆ

../_images/button.png

Buttons are a common component used to control electronic devices, they are usually used as switches to connect or break circuits.

The following is the internal structure of a button. The symbol on the right below is usually used to represent a button in circuits.

../_images/button_symbol.png

Since the pin 1 is connected to pin 2, and pin 3 to pin 4, when the button is pressed, the 4 pins are connected, thus closing the circuit.

../_images/button2.jpg

Example