Basic night light

less than a minute

Make a simple night-light using the built-in LED and a photocell on pin 18.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
from digitalio import DigitalInOut, Direction
import board
import time

# Built in LED
led = DigitalInOut(board.LED)
led.direction = Direction.OUTPUT

sensor_pin = board.GP18
# Enable internal pullup resistor on sensor pin
pin = digitalio.DigitalInOut(sensor_pin)
pin.direction = digitalio.Direction.INPUT
pin.pull = digitalio.Pull.UP


while True:
    if pin.value:
        led.value = True
    else:
        led.value = False
    time.sleep(0.5)