Digital Output

1

A blue LED, a 180 Ohm resistor, and an orange jumper wire.

2

It may seem like a simple blue light, but there's an incredible story of innovation and tenacity behind blue LEDs.

3

Orange jumper wire connects the blue bus-rail to GND.

4

Anode (+) of LED connected to D5, Cathode (-) connected to 180 Ohm resistor, resistor connected to GND.

5

When LED_5.value = True, D5 gets set to 3.3V, forward biasing the light emitting diode.

Creation of the blue LED - Won a Nobel Prize!

Code

"""
Digital Output Demo Code
Breadstick Innovations
April 26, 2024
https://learn.breadstick.ca/breadstick/breadsticks/raspberry-breadstick/code-examples/digital-output
"""

from board import *
from digitalio import DigitalInOut
from time import sleep

led_5 = DigitalInOut(D5)
led_5.switch_to_output()

while True:
    led_5.value = True
    sleep(1)
    led_5.value = False
    sleep(1)