Add ALT key for rotary encoder

code.py

@@ -19,6 +19,7 @@
 import time
 import board
 import digitalio
+import rotaryio
 import usb_hid
 
 # Regular keys 
@@ -26,31 +27,35 @@ from adafruit_hid.keyboard import Keyboard
 from keyboard_layout_win_fr import KeyboardLayout
 from keycode_win_fr import Keycode
 
+# Rotary encoder setup
+enc = rotaryio.IncrementalEncoder(board.GP0, board.GP1)
+last_pos = 0
+
 # When in ALT mode, buttons use an alternative keycode.
 ALT = False
 
 # KB setup
 keyboard = Keyboard(usb_hid.devices)
-keyboard_layout = KeyboardLayout(keyboard) 
+keyboard_layout = KeyboardLayout(keyboard)
 
 # Buttons setup
 buttons_gpio = {
-#   name                GPIO             Keycode_1               Keycode_2(ALT mode)           State        DigitalIO   (switch)
-    "red"   : dict(gpio=board.GP18, keycode_1=Keycode.DELETE,      keycode_2=Keycode.E,         state=False, DIO=None), 
-    "green" : dict(gpio=board.GP19, keycode_1=Keycode.SPACEBAR,    keycode_2=Keycode.RETURN,    state=False, DIO=None), 
-    "blue"  : dict(gpio=board.GP16, keycode_1=Keycode.RIGHT_ARROW, keycode_2=Keycode.UP_ARROW,  state=False, DIO=None), 
-    "black" : dict(gpio=board.GP20, keycode_1=Keycode.O,           keycode_2=Keycode.R,         state=False, DIO=None), 
-    "yellow": dict(gpio=board.GP17, keycode_1=Keycode.LEFT_ARROW,  keycode_2=Keycode.DOWN_ARROW,state=False, DIO=None), 
-    "switch": dict(gpio=board.GP21, keycode_1=None, keycode_2=None, state=False, DIO=None, switch_setup=dict(gpio=board.GP7, state=False, DIO=None)),
-    "fn_1": dict(gpio=board.GP15, keycode_1=Keycode.W,             keycode_2=Keycode.X,  state=False, DIO=None), 
-    "fn_2": dict(gpio=board.GP14, keycode_1=Keycode.L,             keycode_2=Keycode.F,  state=False, DIO=None), 
+#   name                GPIO             Keycode_1               Keycode_2(ALT mode)           State        DigitalIO   Pull (Switch)
+    "red"   : dict(gpio=board.GP18, keycode_1=Keycode.DELETE,      keycode_2=Keycode.E,         state=False, DIO=None, pullr=digitalio.Pull.DOWN), 
+    "green" : dict(gpio=board.GP19, keycode_1=Keycode.SPACEBAR,    keycode_2=Keycode.RETURN,    state=False, DIO=None, pullr=digitalio.Pull.DOWN), 
+    "blue"  : dict(gpio=board.GP16, keycode_1=Keycode.RIGHT_ARROW, keycode_2=Keycode.UP_ARROW,  state=False, DIO=None, pullr=digitalio.Pull.DOWN), 
+    "black" : dict(gpio=board.GP20, keycode_1=Keycode.O,           keycode_2=Keycode.R,         state=False, DIO=None, pullr=digitalio.Pull.DOWN), 
+    "yellow": dict(gpio=board.GP17, keycode_1=Keycode.LEFT_ARROW,  keycode_2=Keycode.DOWN_ARROW,state=False, DIO=None, pullr=digitalio.Pull.DOWN), 
+    "switch": dict(gpio=board.GP21, keycode_1=None,                keycode_2=None,              state=False, DIO=None, pullr=digitalio.Pull.DOWN, switch_setup=dict(gpio=board.GP7, state=False, DIO=None)),
+    "fn_1": dict(gpio=board.GP15, keycode_1=Keycode.W,             keycode_2=Keycode.X,  state=False, DIO=None, pullr=digitalio.Pull.DOWN),
+    "fn_2": dict(gpio=board.GP14, keycode_1=Keycode.L,             keycode_2=Keycode.F,  state=False, DIO=None, pullr=digitalio.Pull.DOWN),
 }
 
 # GPIO setup
 for btn in buttons_gpio:
     buttons_gpio[btn]['DIO'] = digitalio.DigitalInOut(buttons_gpio[btn]['gpio'])
     buttons_gpio[btn]['DIO'].direction = digitalio.Direction.INPUT
-    buttons_gpio[btn]['DIO'].pull = digitalio.Pull.DOWN
+    buttons_gpio[btn]['DIO'].pull = buttons_gpio[btn]['pullr']
     # Switch setup
     if 'switch_setup' in buttons_gpio[btn]:
         buttons_gpio[btn]['switch_setup']['DIO'] = digitalio.DigitalInOut(buttons_gpio[btn]['switch_setup']['gpio'])
@@ -88,4 +93,13 @@ while True:
                 if buttons_gpio[btn]['switch_setup']['DIO'].value:
                     buttons_gpio[btn]['switch_setup']['DIO'].value = False
                     ALT = False
+    pos = enc.position
+    if pos > last_pos:
+        if ALT:
+            keyboard.send(Keycode.Q)
+        else:
+            keyboard.send(Keycode.A)
+    elif pos < last_pos:
+        keyboard.send(Keycode.Z)
+    last_pos = pos
     time.sleep(btn_scan_delay)