import board
import digitalio
import time
import usb_hid
from adafruit_hid.consumer_control_code import ConsumerControlCode
from adafruit_hid.consumer_control import ConsumerControl

clkPin = digitalio.DigitalInOut(board.GP2)
dtPin = digitalio.DigitalInOut(board.GP1)
dtPin.direction= digitalio.Direction.INPUT
clkPin.direction = digitalio.Direction.INPUT
clkPin.pull = digitalio.Pull.UP
dtPin.pull = digitalio.Pull.UP

previousValue = True
consumer_control = ConsumerControl(usb_hid.devices)

while True:
    if previousValue != clkPin.value:
        if clkPin.value == False:
            if dtPin.value == False:
                print('left')
                consumer_control.send(ConsumerControlCode.VOLUME_DECREMENT)
            else:
                print('right')
                consumer_control.send(ConsumerControlCode.VOLUME_INCREMENT)
        previousValue = clkPin.value