GPIO Zero
GPIO Zero is a simple interface to GPIO (General Purpose Input Output) devices with Raspberry Pi, which is a series of small single-board computers developed in the United Kingdom by the Raspberry Pi Foundation to promote teaching of basic computer science in schools and in developing countries.
Created by Ben Nuttall of the Raspberry Pi Foundation, GPIO Zero provides a simple interface to GPIO components, with a wide range of input/output devices supported. It allows you to control devices such as buttons, LEDs, motion sensors, light sensors, and much more, all with simple Python code.
GPIO Zero is intended to ease the learning curve by presenting a simple and consistent interface, while still allowing advanced users to interact with hardware at a lower level if they choose. It’s designed to get you up and running with physical computing in Python as quickly as possible.
To install GPIO Zero, you can use the following command in the terminal of a Raspberry Pi:
sudo apt install python3-gpiozero
After you have installed the library, you can import it into your Python scripts to interact with the GPIO pins of your Raspberry Pi. For example, to turn on an LED connected to pin 17, you could write:
from gpiozero import LED
from time import sleep
led = LED(17)
while True:
led.on()
sleep(1)
led.off()
sleep(1)
This code will cause the LED to blink on and off every second.
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