Button¶
Buttons are a common component used to control electronic devices. They are usually used as switches to connect or break circuits. Although buttons come in a variety of sizes and shapes, the one used here is a 6mm mini-button as shown in the following pictures. Pin 1 is connected to pin 2 and pin 3 to pin 4. So you just need to connect either of pin 1 and pin 2 to pin 3 or pin 4.
The following is the internal structure of a button. The symbol on the right below is usually used to represent a button in circuits.
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.
Examples
2.3 Reading Button Value (For MicroPython User)
Doorbell (For C/C++(Arduino) User)
:LUMI Piano (For C/C++(Arduino) User)