import board from digitalio import DigitalInOut, Pull button = DigitalInOut(board.D3) # defaults to input button.pull = Pull.UP # turn on internal pull-up resistor print(button.value) # False == pressed
Alternate Button Method
button = DigitalInOut(board.D3) button.switch_to_input(Pull.UP)
import board import analogio potknob = analogio.AnalogIn(board.A1) position = potknob.value # ranges from 0-65535 pos = potknob.value // 256 # make 0-255 range
import touchio
import board
touch_pin = touchio.TouchIn(board.GP6)
# on Pico / RP2040, need 1M pull-down on each input
if touch_pin.value:
print("touched!")
import board import rotaryio encoder = rotaryio.IncrementalEncoder(board.GP0, board.GP1) # must be consecutive on Pico print(encoder.position) # starts at zero, goes neg or pos
import board
from digitalio import DigitalInOut, Pull
from adafruit_debouncer import Debouncer
button_in = DigitalInOut(board.D3) # defaults to input
button_in.pull = Pull.UP # turn on internal pull-up resistor
button = Debouncer(button_in)
while True:
button.update()
if button.fell:
print("press!")
if button.rose:
print("release!")
import board
from digitalio import DigitalInOut, Pull
from adafruit_debouncer import Debouncer
pins = (board.GP0, board.GP1, board.GP2, board.GP3, board.GP4)
buttons = [] # will hold list of Debouncer objects
for pin in pins: # set up each pin
tmp_pin = DigitalInOut(pin) # defaults to input
tmp_pin.pull = Pull.UP # turn on internal pull-up resistor
buttons.append( Debouncer(tmp_pin) )
while True:
for i in range(len(buttons)):
buttons[i].update()
if buttons[i].fell:
print("button",i,"pressed!")
if buttons[i].rose:
print("button",i,"released!")
