Reading the state of a button

Button, from the GPIO Zero library, gives us an easy way to interact with a typical button connected to the GPIO. We will cover the following in this section:

• Using GPIO Zero with a button
• Using the Sense HAT emulator and GPIO Zero button together
• Toggling an LED with a long button press

Using GPIO Zero with a button

Connecting a push-button is relatively easy with the GPIO. The following is the connection diagram showing the process:

Connect the push-button so that one end is connected to ground using a jumper. Connect the other end to GPIO 4 on the Raspberry Pi.

In Thonny, create a new file and call it button_press.py. Then, type following into the file and run it:

from gpiozero import Button...