Physical computing/Digitale output

microbit

• https://microbit-micropython.readthedocs.io/en/v1.0.1/pin.html
• library: microbit
• function(s): pin.write_digital(value)

Met de functie pin.write_digital(value) stel je de waarde van een output-pin in. Je hoeft deze pin niet van te voren in te stellen als output-pin.

pin.write_digital(value): Set the pin to high if value is 1, or to low, if it is 0.

from microbit import pin0, pin1

pin0.write_digital(0)
pin0.write_digital(1)

# default for read_digital: PULL_DOWN
print(pin1.read_digital()) # get value, 0 or 1

pin2.set_pull(PULL_UP)
print(pint2.read_digital()) # get value, 0 or 1

microPython

• library: machine
• class: Pin
• function(s):

In microPython moet je eerst de pin instellen als output-pin of als input-pin. In het laatste geval kun je ook instellen of je de interne pull-up weerstand (of pull-down?) gebruikt.

from machine import Pin

p0 = Pin(0, Pin.OUT)    # create output pin on GPIO0
p0.on()                 # set pin to "on" (high) level
p0.off()                # set pin to "off" (low) level
p0.value(1)             # set pin to on/high

p2 = Pin(2, Pin.IN)     # create input pin on GPIO2
print(p2.value())       # get value, 0 or 1

p4 = Pin(4, Pin.IN, Pin.PULL_UP) # enable internal pull-up resistor
p5 = Pin(5, Pin.OUT, value=1) # set pin high on creation