Documentation: https://gpiozero.readthedocs.io/en/stable/
GPIO Zero is a python library for Raspberry Pi, that enables you to control sensors and actuators.
How to control a LED using gpiozero:
from gpiozero import LED
from time import sleep
led = LED(17) # LED connected to RasPi GPIO17
while True:
led.on() # Turn on LED
sleep(1) # Wait 1 second
led.off() # Turn off LED
sleep(1) # Wait 1 second
How to control LED using pushbutton:
from gpiozero import LED, Button
from signal import pause
led = LED(17) # LED connected to RasPi GPIO17
button = Button(2) # Button connected to RasPi GPIO2
button.when_pressed = led.on
button.when_released = led.off
pause()
Following example turns on an LED if light sensor value is between 0 and 0.1 and motion is detected:
from gpiozero import LED, MotionSensor, LightSensor
from gpiozero.tools import booleanized, all_values
from signal import pause
garden = LED(17)
motion = MotionSensor(4)
light = LightSensor(5)
garden.source = all_values(booleanized(light, 0, 0.1), motion)
pause()
How to read light sensor data:
from gpiozero import LightSensor
ldr = LightSensor(18)
ldr.wait_for_light()
print("Light detected!")