Digital Input

1

3.3V and Gnd bus rails, a toggle switch on D4, and a momentary switch on D6.

2

Blue bus rail connected to gnd with an orange jumper wire. Red bus rail connected to 3.3V with a yellow jumper wire.

3

Center pin of toggle switch connected directly to D4. Normally-open momentary switch connects D6 to Gnd when pushed.

4

Toggle switch in "On" possition, conecting D4 to 3.3V.

5

Toggle switch in "Off" possition, conecting D4 to Gnd.

6

Momentary switch unpushed, internal pull-up resistor connects D6 to 3.3V.

7

Momentary switch pusshed, pulls D6 down to Gnd.

Circuit Python Library

https://docs.circuitpython.org/en/latest/shared-bindings/digitalio/index.html

Pull-Up Resistors

https://en.wikipedia.org/wiki/Pull-up_resistor

Code

"""
Digital Input Demo Code
Breadstick Innovations
April 22, 2024
https://learn.breadstick.ca/breadstick/breadsticks/raspberry-breadstick/code-examples/digital-input
"""

from board import *
from time import sleep
from digitalio import DigitalInOut, Direction, Pull
from adafruit_dotstar import DotStar

"""LED Setup"""
leds = DotStar(DOTSTAR_CLOCK, DOTSTAR_DATA, 24, brightness=0.02, auto_write=False)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
OFF = (0, 0, 0)
leds.fill(OFF)
leds.show()

"""Toggle Switch Setup"""
toggle_4 = DigitalInOut(D4)
toggle_4.switch_to_input()

"""Momentary Switch Setup"""
button_6 = DigitalInOut(D6)
button_6.switch_to_input(Pull.UP)

"""Loop"""
while True:
    if toggle_4.value == True:
        leds[0] = GREEN
    else:
        leds[0] = RED

    if button_6.value == True:
        leds[8] = GREEN
    else:
        leds[8] = RED
        
    leds.show()
    sleep(0.03)