Add Pi pin options, fixes.

NeoKey_MX_and_CHOC_Breakouts/CircuitPython/HID/code.py

@@ -2,7 +2,11 @@
 #
 # SPDX-License-Identifier: MIT
 
-"""NeoKey Breakout HID Demo"""
+"""
+NeoKey Breakout HID Demo
+
+WILL NOT WORK ON RASPBERRY PI
+"""
 
 import time
 import board
@@ -41,16 +45,16 @@ KEY_PINS = (
 # therefore the number of key pins listed.
 NUM_PIXELS = len(KEY_PINS)
 
-# Create keyboard object.
-time.sleep(1)  # Delay to avoid a race condition on some systems.
-keyboard = Keyboard(usb_hid.devices)
-
 # Create NeoPixel object.
 pixels = neopixel.NeoPixel(PIXEL_PIN, NUM_PIXELS, brightness=BRIGHTNESS)
 
 # Create keypad object.
 keys = keypad.Keys(KEY_PINS, value_when_pressed=False, pull=True)
 
+# Create keyboard object.
+time.sleep(1)  # Delay to avoid a race condition on some systems.
+keyboard = Keyboard(usb_hid.devices)
+
 while True:
     # Begin getting key events.
     event = keys.events.get()

NeoKey_MX_and_CHOC_Breakouts/CircuitPython/NeoPixel_Rainbow_Press/code.py

@@ -16,13 +16,22 @@ from rainbowio import colorwheel
 # 1 is maximum brightness. Defaults to 0.3.
 BRIGHTNESS = 0.3
 
-# NeoPixel and key switch pins. Update to match your wiring setup. If adding more
-# NeoKey breakouts, add the pins to `KEY_PINS` in the same format as the two shown.
-PIXEL_PIN = board.A3
-KEY_PINS = (
-    board.A1,
-    board.A2,
-)
+# NeoPixel and key switch pins. If using different pins, update to match your wiring setup.
+# pylint: disable=simplifiable-condition
+# Check to see if a Raspberry Pi is present, and set the appropriate pins.
+if "CE0" and "CE1" in dir(board):  # These pins are Pi-specific.
+    PIXEL_PIN = board.D18
+    KEY_PINS = (
+        board.D4,
+        board.D17,
+    )
+# Otherwise, assume a microcontroller, and set the appropriate pins.
+else:
+    PIXEL_PIN = board.A3
+    KEY_PINS = (
+        board.A1,
+        board.A2,
+    )
 
 # --- SETUP AND CODE ---
 # Number of NeoPixels. This will always match the number of breakouts and

NeoKey_MX_and_CHOC_Breakouts/CircuitPython/NeoPixel_Random_Color_Press/code.py

@@ -15,12 +15,22 @@ from rainbowio import colorwheel
 # 1 is maximum brightness. Defaults to 0.3.
 BRIGHTNESS = 0.3
 
-# NeoPixel and key switch pins. Update to match your wiring setup.
-PIXEL_PIN = board.A3
-KEY_PINS = (
-    board.A1,
-    board.A2,
-)
+# NeoPixel and key switch pins. If using different pins, update to match your wiring setup.
+# pylint: disable=simplifiable-condition
+# Check to see if a Raspberry Pi is present, and set the appropriate pins.
+if "CE0" and "CE1" in dir(board):  # These pins are Pi-specific.
+    PIXEL_PIN = board.D18
+    KEY_PINS = (
+        board.D4,
+        board.D17,
+    )
+# Otherwise, assume a microcontroller, and set the appropriate pins.
+else:
+    PIXEL_PIN = board.A3
+    KEY_PINS = (
+        board.A1,
+        board.A2,
+    )
 
 # --- SET UP AND CODE ---
 # Number of NeoPixels. This will always match the number of breakouts and