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boot.py

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+import board
+import storage
+import digitalio
+
+button = digitalio.DigitalInOut(board.GP29)
+button.direction = digitalio.Direction.INPUT
+button.pull = digitalio.Pull.UP
+
+# Disable devices only if button is not pressed.
+if button.value:
+    print(f"boot: button not pressed, disabling drive")
+    storage.disable_usb_drive()

code.py

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+# The Knob
+# Made by: Jens Ståhl
+# Board: RP2040-Zero
+# v1.0: 2025-01-12 (Initial release)
+
+#SW: GP29
+#DT: GP28
+#CLK: GP27
+
+import board
+import time
+import neopixel
+import usb_hid
+import digitalio
+import rotaryio
+from adafruit_debouncer import Button
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keycode import Keycode
+from adafruit_hid.consumer_control import ConsumerControl
+from adafruit_hid.consumer_control_code import ConsumerControlCode
+
+pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
+
+kbd = Keyboard(usb_hid.devices)
+cc = ConsumerControl(usb_hid.devices)
+
+pin = digitalio.DigitalInOut(board.GP29)
+pin.direction = digitalio.Direction.INPUT
+pin.pull = digitalio.Pull.UP
+switch = Button(pin)
+
+encoder = rotaryio.IncrementalEncoder(board.GP27, board.GP28)
+last_position = 0
+
+leftRotary, rightRotary, buttonStatus = False, False, False
+
+now = time.monotonic()
+lastButton = time.monotonic()
+lastTurn = time.monotonic()
+
+RED = (255, 0, 0)
+YELLOW = (255, 150, 0)
+GREEN = (0, 255, 0)
+CYAN = (0, 255, 255)
+BLUE = (0, 0, 255)
+PURPLE = (180, 0, 255)
+ORANGE = (220, 88, 42)
+BLANK = (0, 0, 0)
+
+def setLED(color):
+    global now
+    pixel[0] = color
+    if color != BLANK:
+        now = time.monotonic()
+
+while True:
+    position = encoder.position
+    if position > last_position:
+        lastTurn = time.monotonic()
+        if buttonStatus and not rightRotary:
+            cc.send(ConsumerControlCode.SCAN_NEXT_TRACK)
+            setLED(YELLOW)
+            leftRotary, rightRotary = False, True
+        elif not buttonStatus and ((lastButton + 1) < time.monotonic()):
+            cc.send(ConsumerControlCode.VOLUME_INCREMENT)
+            setLED(GREEN)
+    if position < last_position:
+        lastTurn = time.monotonic()
+        if buttonStatus and not leftRotary:
+            cc.send(ConsumerControlCode.SCAN_PREVIOUS_TRACK)
+            setLED(YELLOW)
+            leftRotary, rightRotary = True, False
+        elif not buttonStatus and ((lastButton + 1) < time.monotonic()):
+            cc.send(ConsumerControlCode.VOLUME_DECREMENT)
+            setLED(BLUE)
+
+    last_position = position
+
+    switch.update()
+    if switch.long_press and ((lastTurn + 1) < time.monotonic()):
+        cc.send(ConsumerControlCode.MUTE)
+        setLED(RED)
+    if switch.short_count == 1 and ((lastTurn + 1) < time.monotonic()):
+        cc.send(ConsumerControlCode.PLAY_PAUSE)
+        setLED(CYAN)
+    if switch.short_count == 2 and ((lastTurn + 1) < time.monotonic()):
+        kbd.send(Keycode.ALT, Keycode.A) #Mute Zoom
+        kbd.send(Keycode.CONTROL, Keycode.SHIFT, Keycode.M) #Mute Teams
+        setLED(RED)
+
+    if switch.pressed:
+        buttonStatus = True
+    if switch.released:
+        lastButton = time.monotonic()
+        leftRotary, rightRotary, buttonStatus = False, False, False
+
+    if (time.monotonic() - now > 0.3) and not (pixel[0] == BLANK):
+        setLED(BLANK)