adafruit macropad HID Example

code.py

# https://learn.adafruit.com/adafruit-macropad-rp2040/macropad-basics
# https://docs.circuitpython.org/projects/macropad/en/latest/index.html
# https://docs.circuitpython.org/projects/hid/en/latest/api.html

import time
import usb_hid
from adafruit_macropad import MacroPad
from adafruit_hid.consumer_control import ConsumerControl
from adafruit_hid.consumer_control_code import ConsumerControlCode
from adafruit_hid.keyboard import Keyboard
from adafruit_hid.keycode import Keycode

kbd = Keyboard(usb_hid.devices)
consumer_control = ConsumerControl(usb_hid.devices)
macropad = MacroPad()

class Encoder:
    def __init__(self):
        self.lastValue = None
        self.lastSwitch = None

    def processEncoder(self):
        value = macropad.encoder
        if self.lastValue == value:
            return
        print("Encoder: {}\n\n".format(value))
        if self.lastValue != None:
            if self.lastValue < value:
                consumer_control.send(ConsumerControlCode.VOLUME_INCREMENT)
            else:
                consumer_control.send(ConsumerControlCode.VOLUME_DECREMENT)
        self.lastValue = value

    def processSwitch(self):
        switch = macropad.encoder_switch
        if self.lastSwitch == switch:
            return
        if switch:
            consumer_control.send(ConsumerControlCode.MUTE)
        self.lastSwitch = switch

keymap = {
    0: [ Keycode.A, Keycode.B ],
    1: [ Keycode.C, Keycode.D ],
    2: [ Keycode.E, Keycode.F ],
    3: [ Keycode.G, Keycode.H ],
    4: [ Keycode.I, Keycode.J ],
    5: [ Keycode.K, Keycode.L ],
    6: [ Keycode.M, Keycode.N ],
    7: [ Keycode.O, Keycode.P ],
    8: [ Keycode.Q, Keycode.R ],
    9: [ Keycode.S, Keycode.T ],
    10: [ Keycode.U, Keycode.V ],
    11: [ Keycode.W, Keycode.X ],
}

class Keypad:
    def process(self):
        key_event = macropad.keys.events.get()
        if not key_event:
            return
        if not key_event.pressed:
            return
        if key_event.key_number in keymap:
            for key in keymap[key_event.key_number]:
                kbd.press(key)
                time.sleep(0.01)
                kbd.release(key)
                time.sleep(0.01)

theEncoder = Encoder()
theKeypad = Keypad()

while True:
    theEncoder.processEncoder()
    theEncoder.processSwitch()
    theKeypad.process()