Adding digital input single NeoPixel example

CircuitPython_Templates/digital_input_one_neopixel.py

@@ -0,0 +1,24 @@
+"""CircuitPython Digital Input example - Blinking a built-in NeoPixel LED using a button switch.
+
+Update BUTTON_PIN to the pin to which you have connected the button (in the case of an external
+button), or to the pin connected to the built-in button (in the case of boards with built-in
+buttons).
+
+For example:
+If you connected a button switch to D1, change BUTTON_PIN to D1.
+If using a QT Py RP2040, to use button A, change BUTTON_PIN to BUTTON.
+"""
+import board
+import digitalio
+import neopixel
+
+pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
+
+button = digitalio.DigitalInOut(board.BUTTON_PIN)
+button.switch_to_input(pull=digitalio.Pull.UP)
+
+while True:
+    if not button.value:
+        pixel.fill((255, 0, 0))
+    else:
+        pixel.fill(0)